CONTROLS -> Driver assistance systems for your BMW 4 Series 2020-2025

Driver assistance systems  
CONTROLS  
Driver assistance systems  
6. "Speed warning"  
Vehicle features and options  
7. "Warning above:"  
This chapter describes model-specific equip-  
ment, systems, and functions that are currently  
available, or may become available in the fu-  
ture, even if they are not present in the vehicle.  
8. Select the desired setting.  
Applying current speed as the  
speed warning  
Additional information:  
1.  
Apps menu  
Vehicle equipment, refer to page 8.  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Safety and warnings"  
6. "Speed warning"  
7. "Adopt current speed"  
Speed warning  
Principle  
The speed warning can be used to set a speed  
limit. A warning will be issued when this speed  
limit is exceeded.  
Speed Limit Info  
General information  
Another warning occurs when the set speed  
limit is exceeded again after it has dropped by  
3 mph/5 km/h.  
Speed Limit Info  
Principle  
Speed Limit Info shows the currently valid  
speed limit in the instrument cluster and, if  
necessary, the Head-up display.  
Activating/deactivating the speed  
warning  
1.  
Apps menu  
General information  
2. "Vehicle"  
The camera in the area of the interior mirror  
detects traffic signs at the edge of the road as  
well as overhead sign posts.  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Safety and warnings"  
6. "Speed warning"  
Traffic signs with extra icons are considered  
and compared with the vehicle's onboard data.  
The traffic sign will then be either displayed  
or ignored depending on the situation in the  
instrument cluster and the Head-up display.  
Adjusting the speed  
1.  
Apps menu  
The system may also show speed limits that  
apply to routes that are not signposted if the  
navigation system has current map data.  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Safety and warnings"  
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Driver assistance systems  
CONTROLS  
For Speed Limit Info to function correctly, cur-  
rent map data for the country in which the ve-  
hicle is operated must be downloaded.  
Display  
Speed Limit Info  
For information on the current map version  
and map updates, see Map update in the Nav-  
igation system chapter.  
Icon  
Description  
Current speed limit.  
Without map data, the system is subject to  
certain technical limitations. Traffic signs with  
speed limitations are detected and displayed  
only. Speed limits due to entering towns/cities,  
highway signs, etc., are not displayed. Speed  
limits with extra traffic signs are always dis-  
played.  
Depending on the national-  
market version, it is possible  
to switch between the units of  
measurement.  
No data on current speed limit  
available.  
Additional information:  
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Owner's Manual for Navigation, Entertain-  
ment, and Communication, refer to page 6.  
Speed Limit Info not available.  
Safety information  
Warning signals  
Depending on the settings, an acoustic signal  
sounds if the detected speed limit is exceeded  
or the speed limit changes. The display also  
flashes if the detected speed limit is exceeded.  
Warning  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
Settings  
Individual settings can be configured for Speed  
Limit Info, e.g., warnings issued if the speed is  
exceeded or the permissible maximum speed  
changes.  
1.  
Apps menu  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
Sensors  
The system is controlled by a camera behind  
the windshield.  
6. "Speed Limit Assistance"  
7. Select the desired setting.  
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Driver assistance systems  
CONTROLS  
System limits  
General information  
The system can limit the speed, starting at  
20 mph/30 km/h. The vehicle can be driven  
at any speed below the set speed limit.  
System limits of the sensors  
Additional information:  
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Camera, refer to page 37.  
Overview  
Functional limitations  
The system function may be limited and may  
provide incorrect information in the following  
situations:  
Buttons on the steering wheel  
Button Function  
System on/off.  
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Traffic signs are fully or partially concealed  
by objects, stickers, or paint.  
Traffic signs do not comply with the stand-  
ard.  
Store current speed.  
Speed Limit Assistant: accept sug-  
gested speed manually.  
In areas that are not included in the naviga-  
tion system map data.  
If navigation system map data is invalid,  
outdated, or unavailable.  
Rocker switch:  
Changing the speed limit.  
When roads deviate from the navigation  
such as due to changes in road layout.  
Operation  
When driving very close to the vehicle in  
front of you.  
Turning on the speed limiter  
When passing buses or trucks with traffic  
signs applied to them.  
Press the button on the steering wheel.  
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In case of electronic traffic signs.  
When traffic signs that are valid for a paral-  
lel road are detected.  
The current speed is adopted as the speed  
limit.  
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In the presence of country-specific road  
signs or road layouts.  
If the system is turned on while the vehi-  
cle is stationary or driving at low speeds,  
20 mph/30 km/h is set as the speed limit.  
The marking in the speedometer is set to the  
corresponding speed.  
Manual Speed Limiter  
When the speed limit is activated, Dynamic  
Stability Control is switched on and the vehicle  
may change to COMFORT drive mode.  
Principle  
The Manual Speed Limiter can be used to set  
a speed limit, for instance to prevent the vehi-  
cle from exceeding speed limits.  
Turning off the speed limiter  
Press the button on the steering wheel.  
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Driver assistance systems  
CONTROLS  
The system switches off automatically in the  
following situations, for example:  
Exceeding the speed limit  
When the vehicle speed exceeds the set speed  
limit, a warning is issued.  
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When the engine is switched off.  
When Cruise Control is switched on.  
The speed limit can be exceeded intentionally.  
When certain driving modes are activated  
via Driving Experience Control.  
Press the accelerator pedal all the way down  
to intentionally exceed the set speed limit.  
The displays turn off.  
When the vehicle speed drops below the set  
speed limit, the limit is automatically reacti-  
vated.  
Stopping the speed limiter  
If the reverse gear is engaged or in Neutral, the  
system is interrupted when rolling backwards.  
Warning when the speed limit is  
exceeded  
Changing the speed limit  
Visual warning  
If the speed limit is exceeded: the  
indicator light in the instrument clus-  
ter flashes while the vehicle speed is  
greater than the set speed limit.  
Acoustic warning  
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If the speed limit is exceeded unintention-  
ally, a signal sounds.  
Press the rocker switch up or down repeatedly  
until the desired speed limit is set.  
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When the speed limit is reduced to be-  
low the current vehicle speed, the signal  
sounds after some time.  
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Each time the rocker switch is pressed  
to the resistance point, the speed limit in-  
creases or decreases by 1 mph/1 km/h.  
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When the speed limit is intentionally ex-  
ceeded by stepping on the accelerator  
pedal all the way down, there is no signal.  
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Each time the rocker switch is pressed  
past the resistance point, the desired speed  
changes by a maximum of 5 mph/10 km/h.  
Displays in the instrument cluster  
If the set speed limit is reached or unintention-  
ally exceeded such as when driving downhill,  
the vehicle is not actively braked.  
Display in the speedometer  
Depending on the equipment, a mark in the  
speedometer displays the status of the sys-  
tem.  
When the speed limit is set during a trip to  
a value below the current speed, the vehicle  
coasts until it drops to the set speed limit.  
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Green marking: system is ac-  
tive.  
The current speed can also be stored by  
pressing a button:  
Gray marking: system is in-  
terrupted.  
Press the button on the steering wheel.  
No marking: system is  
switched off.  
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Driver assistance systems  
CONTROLS  
take over steering and braking at any time,  
and actively intervene where appropriate.  
Indicator light  
Icon  
Description  
The indicator light illuminates: the  
system is switched on.  
Warning  
The use of the system can lead to an in-  
creased risk of accidents in the following sit-  
uations, for instance:  
The indicator light flashes: the set  
speed limit has been exceeded.  
Gray indicator light: the system has  
been interrupted.  
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On winding roads.  
With high traffic volume.  
On slippery roads, in fog, snow, or wet  
conditions, or on a loose road surface.  
Cruise Control without  
Distance Control  
There is a risk of accident, injury, or property  
damage. Only use the system if driving at  
constant speed is possible.  
Principle  
With the Cruise Control, a set speed can be ad-  
justed using the buttons on the steering wheel.  
The system maintains the set speed. The sys-  
tem accelerates and brakes automatically as  
needed.  
Warning  
The set speed can be incorrectly adjusted or  
called up by mistake. There is a risk of acci-  
dent, injury, or property damage. Adjust the  
set speed to the traffic conditions. Watch sur-  
rounding traffic closely and actively intervene  
where appropriate  
General information  
The system can be activated starting at  
20 mph/30 km/h.  
Depending on the vehicle setting, the cruise  
control settings may change under certain  
conditions. For instance, acceleration can  
change depending on the driving mode.  
Overview  
Buttons on the steering wheel  
Button Function  
Safety information  
Cruise control on/off.  
Warning  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
Continue cruise control with the last  
setting.  
Interrupt cruise control.  
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Driver assistance systems  
CONTROLS  
Stopping the system automatically  
Button Function  
The system is automatically interrupted in the  
following situations, for example:  
Store current speed.  
Speed Limit Assistant: accept sug-  
gested speed manually.  
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When performing a manual braking proc-  
ess.  
Rocker switch:  
Set speed.  
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Selector lever position D is disengaged.  
While Dynamic Traction Control is enabled  
or Dynamic Stability Control is disabled.  
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While Dynamic Stability Control regulates  
driving stability.  
Turning Cruise Control on/off  
Turning on the system  
Adjusting the speed  
Depending on the equipment version,  
press the relevant button on the steer-  
ing wheel.  
Maintaining and storing the speed  
The indicator lights in the instrument cluster  
illuminate and the mark on the speedometer is  
set to the current speed.  
Cruise control is active. The current speed is  
maintained and stored as desired speed.  
If necessary, the Dynamic Stability Control will  
be turned on.  
Press the rocker switch up or down once while  
the system is interrupted.  
Turning off the system  
When the system is switched on, the current  
speed is maintained and stored as the set  
speed.  
Depending on the equipment version,  
press the relevant button on the steer-  
ing wheel.  
The stored speed is displayed on the speed-  
ometer.  
If necessary, the Dynamic Stability Control will  
be turned on.  
The displays turn off. The stored set speed is  
deleted.  
The speed can also be stored by pressing a  
button.  
Interrupting Cruise Control  
Press the button.  
Stopping the system manually  
When active, press the button.  
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Driver assistance systems  
CONTROLS  
An interrupted cruise control can be continued  
by calling up the stored speed. The difference  
between the current speed and the stored  
speed should be as little as possible.  
Changing the speed  
Press the button with the system inter-  
rupted.  
Cruise control is continued with the stored val-  
ues.  
In the following cases, the stored speed value  
is deleted and cannot be called up again:  
Press the rocker switch up or down repeatedly  
until the desired speed is set.  
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When the system is switched off.  
When drive-ready state is switched off.  
If active, the displayed speed is stored and  
the vehicle reaches the stored speed when the  
road is clear.  
Displays in the instrument cluster  
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Each time the rocker switch is tapped to the  
resistance point, the set speed increases or  
decreases by 1 mph/1 km/h.  
Display in the speedometer  
Depending on the equipment, a mark in the  
speedometer displays the status of the sys-  
tem.  
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Each time the rocker switch is pressed  
past the resistance point, the desired speed  
changes by a maximum of 5 mph/10 km/h.  
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Green marking: system is ac-  
tive, the marking indicates  
the desired speed.  
The maximum speed that can be set de-  
pends on the vehicle.  
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Pressing the rocker switch to the resistance  
point and holding it: vehicle accelerates or  
decelerates without pressure on the accel-  
erator pedal.  
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Gray marking: system is in-  
terrupted, the marking indi-  
cates the stored speed.  
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No marking: system is switched off.  
After the rocker switch is released, the vehi-  
cle maintains its final speed. Pressing the  
switch beyond the resistance point causes  
the vehicle to accelerate more rapidly.  
Indicator light  
Icon  
Description  
Continuing cruise control  
No indicator light: system is switched  
off.  
Warning  
Indicator light green: system is active.  
The set speed can be incorrectly adjusted or  
called up by mistake. There is a risk of acci-  
dent, injury, or property damage. Adjust the  
set speed to the traffic conditions. Watch sur-  
rounding traffic closely and actively intervene  
where appropriate  
Gray indicator light: the system has  
been interrupted.  
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CONTROLS  
Otherwise, drive off on your own such as by  
pressing the accelerator pedal or the rocker  
switch on the steering wheel.  
Displays in the Head-up display  
Some system information can also be dis-  
played in the Head-up display.  
Depending on the vehicle setting, the cruise  
control settings may change under certain  
conditions. For instance, acceleration can  
change depending on the driving mode.  
The icon is displayed when the set  
speed is reached.  
System limits  
The set speed is also maintained downhill. The  
speed may not be maintained on uphill grades  
if the drive power is insufficient.  
Safety information  
Warning  
In ECO PRO driving mode, the vehicle may  
exceed or drop below the set desired speed  
in some situations, for instance on downhill or  
uphill grades.  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
Do not use Cruise Control when towing.  
Active Cruise Control with  
Distance Control  
Principle  
Using the Cruise Control, a desired speed and  
a distance to a vehicle ahead can be adjusted  
using the buttons on the steering wheel.  
Warning  
An unsecured vehicle can begin to move and  
possibly roll away. There is a risk of accident,  
injury, or property damage. Before leaving  
the vehicle, secure the vehicle against rolling  
away.  
General information  
The system maintains the set speed on clear  
roads. The vehicle accelerates or brakes auto-  
matically.  
In order to ensure that the vehicle is secured  
against rolling away, follow the following:  
If a vehicle is driving ahead of you, the system  
adjusts the speed of the vehicle so that the set  
distance to the vehicle ahead is maintained.  
The speed is adjusted as far as the given sit-  
uation allows.  
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Set the parking brake.  
On uphill grades or on downhill slopes,  
turn the front wheels in the direction of  
the curb.  
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On uphill grades or on downhill slopes,  
also secure the vehicle, for instance with  
a wheel chock.  
The distance can be adjusted at several levels.  
For safety reasons, it depends on the respec-  
tive speed.  
If the vehicle ahead of you brakes to a stand-  
still and then drives off again within a brief pe-  
riod, the system is able to detect this within the  
given system limits.  
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Driver assistance systems  
CONTROLS  
Button Function  
With Steering Assistant:  
Warning  
The set speed can be incorrectly adjusted or  
called up by mistake. There is a risk of acci-  
dent, injury, or property damage. Adjust the  
set speed to the traffic conditions. Watch sur-  
rounding traffic closely and actively intervene  
where appropriate  
Interrupt cruise control.  
Continue cruise control with the last  
setting.  
Without Steering Assistant:  
Continue cruise control with the last  
setting.  
Without Steering Assistant:  
Interrupt cruise control.  
Warning  
Risk of accident is greater when there is a  
high speed differential to other vehicles, for  
instance in the following situations:  
Increase the distance.  
Switch Distance Control on/off.  
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When approaching a slowly moving ve-  
hicle at speed.  
Reduce distance.  
Vehicle suddenly swerving into own  
lane.  
Switch Distance Control on/off.  
When approaching stationary vehicles at  
speed.  
Rocker switch:  
Set speed.  
There is a risk of injury or danger to life.  
Watch surrounding traffic closely and actively  
intervene where appropriate  
Sensors  
The system is controlled by the following sen-  
sors:  
Overview  
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Cameras behind the windshield.  
Front radar sensor.  
Buttons on the steering wheel  
Button Function  
Additional information:  
Sensors of the vehicle, refer to page 37.  
With Steering Assistant:  
Cruise control on/off.  
Application range  
The system is best used on well-maintained  
roads.  
With Steering Assistant:  
Select function.  
The minimum speed that can be set is  
20 mph/30 km/h.  
Without Steering Assistant:  
Cruise control on/off.  
The maximum speed that can be set is limited  
and depends, for example, on the vehicle and  
the vehicle equipment.  
Store current speed.  
The system can also be activated when sta-  
tionary.  
Speed Limit Assistant: accept sug-  
gested speed manually.  
Do not use Cruise Control and Distance Control  
when towing.  
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Driver assistance systems  
CONTROLS  
The indicator lights in the instrument cluster  
illuminate and the mark on the speedometer is  
set to the current speed.  
Turning Cruise Control on/off or  
stopping it  
Cruise control is active. The current speed is  
maintained and stored as desired speed.  
With Steering Assistant: Assisted  
Driving Mode  
If necessary, the Dynamic Stability Control will  
be turned on.  
General information  
This button is used to switch the con-  
figured function on and off.  
Turning off the system  
To switch off the system while stationary, step  
on brake pedal at the same time.  
The button can be used to set the pri-  
marily used function.  
Press the button on the steering wheel:  
With Steering Assistant.  
Setting the function  
When the system is active, press the  
button repeatedly until the desired  
Without Steering Assistant.  
function is selected in the toolbar. The  
toolbar for Assisted Driving mode is displayed  
at the bottom of the instrument cluster.  
The displays turn off. The stored set speed is  
deleted.  
Icon  
Function  
Stopping the system manually  
When active, press the button on the steering  
wheel:  
Cruise Control with Distance Control.  
With Steering Assistant.  
Cruise Control with Distance Control  
and Steering Assistant.  
Without Steering Assistant.  
The selected function is shown in green.  
If interrupting the system while stationary,  
press on the brake pedal at the same time.  
Turning on the system  
With Steering Assistant:  
Stopping the system automatically  
The system is automatically interrupted in the  
following situations:  
1.  
Press the button on the steering  
wheel.  
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When performing a manual braking proc-  
ess.  
2.  
If necessary, set the cruise control.  
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Selector lever position D is disengaged.  
Without Steering Assistant:  
Press the button on the steering wheel.  
While Dynamic Traction Control is enabled  
or Dynamic Stability Control is disabled.  
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Driver assistance systems  
CONTROLS  
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While Dynamic Stability Control regulates  
driving stability.  
Changing the speed  
When the vehicle is stationary, the seat  
belt is unbuckled and the driver's door is  
opened.  
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The system has not detected objects for  
an extended period, for instance on a  
road with very little traffic without curb or  
shoulder markings.  
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The detection range of the radar is im-  
paired, for instance by contamination or  
heavy precipitation.  
Press the rocker switch up or down repeatedly  
until the desired speed is set.  
After a longer stationary period when the  
vehicle has been braked to a stop by the  
system.  
If active, the displayed speed is stored and  
the vehicle reaches the stored speed when the  
road is clear.  
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Each time the rocker switch is tapped to the  
resistance point, the set speed increases or  
decreases by 1 mph/1 km/h.  
Adjusting the speed  
Maintaining and storing the speed  
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Each time the rocker switch is pressed  
past the resistance point, the desired speed  
changes by a maximum of 5 mph/10 km/h.  
Hold the rocker switch in position to repeat the  
action.  
Adjusting the distance  
Safety information  
Press the rocker switch up or down once while  
the system is interrupted. The system will be  
activated.  
Warning  
The system cannot serve as a substitute for  
the driver’s personal judgment. Due to the  
system limits, deceleration can be late. There  
may be a risk of accidents or risk of dam-  
age to property. Be aware of the surround-  
ing traffic situation at all times. Adjust the  
distance to the traffic and weather conditions  
and maintain the prescribed safety distance,  
possibly by braking.  
The current speed is maintained and stored as  
desired speed.  
The stored speed is displayed on the speed-  
ometer.  
If necessary, the Dynamic Stability Control will  
be turned on.  
The speed can also be stored by pressing a  
button.  
Press the button.  
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Driver assistance systems  
CONTROLS  
between the current speed and the stored  
speed should be as little as possible.  
Reducing the distance  
Press the button repeatedly until the  
desired distance is set.  
Press the button on the steering wheel with  
the system interrupted:  
Instrument cluster will display selected dis-  
tance.  
With Steering Assistant.  
Increasing the distance  
Without Steering Assistant.  
Press the button repeatedly until the  
desired distance is set.  
Cruise control is continued with the stored val-  
ues.  
Instrument cluster will display selected dis-  
tance.  
In the following cases, the stored speed value  
is deleted and cannot be called up again:  
Automatic adaptation of the distance  
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When the system is switched off.  
Depending on the equipment and national-  
market version: the system can be set so that  
the distance to the vehicle in front is automati-  
cally adjusted within the set distance. The sys-  
tem takes into account the traffic situation and  
ambient conditions, e.g. poor visibility.  
When drive-ready state is switched off.  
Changing between Cruise Control  
with/without Distance Control  
Safety information  
1.  
Apps menu  
2. "Vehicle"  
Warning  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
The system does not react to traffic driv-  
ing ahead of you, but instead maintains the  
stored speed. There is a risk of accident,  
injury, or property damage. Adjust the set  
speed to the traffic conditions and brake as  
needed.  
6. "Speed Limit Assistance"  
7. "Situational distance control"  
Continuing cruise control  
Changing over the Cruise Control mode  
Switching Cruise Control without Distance  
Control off and on:  
Warning  
The set speed can be incorrectly adjusted or  
called up by mistake. There is a risk of acci-  
dent, injury, or property damage. Adjust the  
set speed to the traffic conditions. Watch sur-  
rounding traffic closely and actively intervene  
where appropriate  
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Press and hold this button.  
Press and hold this button.  
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With Steering Assistant: switch on Distance  
Control:  
An interrupted cruise control can be continued  
by calling up the stored speed. The difference  
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Driver assistance systems  
CONTROLS  
Press the button.  
Icon  
Description  
White indicator light:  
Without Steering Assistant: switch on Distance  
Control:  
No Distance Control because acceler-  
ator pedal is being pressed.  
Indicator light illuminates green:  
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Press the button.  
Vehicle has been detected ahead of  
you.  
The vehicle icon goes out if no vehicle  
has been detected ahead of you.  
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Press the button.  
After changing, a Check Control message is  
displayed.  
Indicator light flashes green:  
Preceding vehicle has driven off.  
Displays in the instrument cluster  
Indicator light illuminates gray:  
System interrupted.  
General information  
Depending on the equipment version, the dis-  
plays in the instrument cluster may vary.  
Indicator light flashes gray:  
Conditions are not adequate for the  
system to work.  
Display in the speedometer  
Depending on the equipment, a mark in the  
speedometer displays the status of the sys-  
tem.  
The system was deactivated but ap-  
plies the brakes until you actively  
resume control by pressing on the  
brake pedal or accelerator pedal.  
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Green marking: system is ac-  
tive, the marking indicates  
the desired speed.  
Warning light flashes red and acous-  
tic signal sounds:  
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Gray marking: system is in-  
terrupted, the marking indi-  
cates the stored speed.  
Brake and make an evasive maneu-  
ver, if necessary.  
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No marking: system is switched off.  
Assisted View  
Depending on the equipment and national-  
market version, information for the system is  
displayed in the Assisted View in the central  
display area of the instrument cluster.  
Indicator lights and warning lights  
Depending on the equipment:  
Additional information:  
Assisted View, refer to page 146.  
Displays in the Head-up display  
Set speed  
Some system information can also be dis-  
played in the Head-up display.  
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Driver assistance systems  
CONTROLS  
The icon is displayed when the set  
speed is reached.  
Deceleration  
The system does not decelerate in the follow-  
ing situations:  
â–·
For pedestrians or similarly slow-moving  
road users.  
Distance information  
The icon is displayed when the dis-  
tance from the vehicle traveling ahead  
is too short.  
â–·
Depending on the vehicle equipment and  
national availability, for red traffic lights.  
â–·
â–·
For cross traffic.  
The distance information is active in the fol-  
lowing situations:  
For oncoming traffic.  
â–·
Active Cruise Control with Distance Control  
switched off.  
Merging vehicles  
â–·
Display in the Head-up display selected.  
Head-up display, refer to page 131.  
Distance too short.  
â–·
â–·
Speed greater than approx.  
40 mph/70 km/h.  
System limits  
If a vehicle driving ahead of you suddenly  
merges into your lane, the system may not be  
able to automatically restore the selected dis-  
tance. It may not be possible to restore the se-  
lected distance in certain situations, including if  
you are driving significantly faster than vehicles  
driving ahead of you, for instance when rapidly  
approaching a truck. When a vehicle driving  
ahead of you is reliably detected, the system  
requests that the driver intervene by braking  
and making an evasive maneuver, if needed.  
System limits of the sensors  
Additional information:  
â–·
â–·
Cameras, refer to page 37.  
Radar sensors, refer to page 38.  
Detection range  
The detection capability of the system and the  
automatic braking performance are limited.  
For instance, two-wheeled vehicles may not be  
detected.  
210  
 
 
Driver assistance systems  
CONTROLS  
Cornering  
Weather  
The following restrictions can occur under un-  
favorable weather or light conditions:  
â–·
â–·
Poorer vehicle detection.  
Short-term interruptions for vehicles that  
are already recognized.  
Drive attentively, and react to the current sur-  
rounding traffic situation. If necessary, inter-  
vene actively, for instance by braking, steering  
or making an evasive maneuver.  
When the set speed is too high for a curve,  
the speed is reduced slightly. Because curves  
may not be anticipated in advance, drive into a  
curve at an appropriate speed.  
Drive power  
The set speed is also maintained downhill. The  
speed may not be maintained on uphill grades  
if the drive power is insufficient.  
The system has a limited detection range. Sit-  
uations can arise in tight curves where a vehi-  
cle driving ahead will not be detected or will be  
detected very late.  
In ECO PRO driving mode, the vehicle may  
exceed or drop below the set desired speed  
in some situations, for instance on downhill or  
uphill grades.  
Speed Limit Assistant  
Principle  
Speed Limit Assistant supports driving at the  
speed limit. A suggested speed can be ap-  
plied.  
When you approach a curve the system may  
briefly report vehicles in the next lane due  
to the bend of the curve. If the system decel-  
erates you may compensate for it by briefly  
accelerating. After releasing the accelerator  
pedal the system is reactivated and controls  
speed independently.  
General information  
When the systems in the vehicle, e.g., Speed  
Limit Info, detect a change of the speed limit,  
this new speed value can be applied for the  
following systems:  
â–·
â–·
â–·
Manual Speed Limiter.  
Cruise control.  
Driving off  
In some situations, the vehicle cannot drive off  
automatically; for example:  
Active Cruise Control with Distance Control.  
The speed value is suggested as the new de-  
sired speed to be applied. To apply the speed  
value, the corresponding system must be acti-  
vated.  
â–·
â–·
On steep uphill grades.  
In front of bumps in the road.  
In these cases, step on the accelerator pedal.  
211  
 
 
Driver assistance systems  
CONTROLS  
5. "Driving"  
Safety information  
6. "Speed Limit Assistance"  
7. "Speed limits"  
Warning  
8. Select the desired setting:  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
â–·
"Adjust manually": detected speed limits  
can be applied manually.  
â–·
"Show anticipation": Depending on the  
national-market version: current and up-  
coming speed limits are displayed in  
the instrument cluster without being ap-  
plied.  
â–·
â–·
"Show current limit": current speed lim-  
its are displayed without being applied  
in the instrument cluster.  
"Off": depending on the national-market  
version, Speed Limit Info and Speed  
Limit Assistant will be turned off.  
Warning  
The set speed can be incorrectly adjusted or  
called up by mistake. There is a risk of acci-  
dent, injury, or property damage. Adjust the  
set speed to the traffic conditions. Watch sur-  
rounding traffic closely and actively intervene  
where appropriate  
Displays in the instrument cluster  
A message is displayed in the instrument clus-  
ter when the system and a driver assistance  
system are activated.  
Icon  
Function  
Overview  
Depending on the equipment version,  
the indicator light illuminates green,  
together with the icon for a speed  
control system:  
Buttons on the steering wheel  
Button Function  
Speed Limit Assistant is active and  
detected speed limits can be applied  
manually for the displayed system.  
Accept suggested speed manually.  
Detected change of a speed limit with  
immediate effect.  
Rocker switch:  
Set speed, refer to Cruise Control.  
Depending on the national-market  
version, it is possible to switch be-  
tween the units of measurement.  
Turning Speed Limit Assistant  
on/off  
Indicator light illuminates green: the  
detected speed limit can be applied  
with the SET button.  
1.  
Apps menu  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
After it has been applied, a green  
checkmark is displayed.  
212  
 
 
Driver assistance systems  
CONTROLS  
Manual adoption  
Adapting to route  
A detected speed limit can be applied man-  
ually for the active driver assistance system.  
Principle  
Depending on the national-market version, the  
system can be configured so that the vehicle  
adapts the speed automatically to the route.  
When the SET icon illuminates, press  
the button.  
For instance, the speed will be reduced in the  
following situations, if necessary:  
Speed adjustment  
â–·
â–·
â–·
Before making turns.  
Before a roundabout.  
Before a curve.  
Principle  
It can be adjusted whether the speed limit is  
applied exactly or with a tolerance.  
Adapting speed automatically to route  
General information  
You can configure a speed adaptation for all  
speed limits and an additional speed adapta-  
tion for speed limits up to 40 mph/60 km/h.  
1.  
Apps menu  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
The additional speed adaptation for speed lim-  
its up to 40 mph/60 km/h can be activated or  
deactivated.  
6. "Speed Limit Assistance"  
7. "Adjust to route" or "Automatically adjust  
speed to route"  
Setting the speed adjustment  
1.  
Apps menu  
2. "Vehicle"  
System limits  
Speed Limit Assistant is based on the Speed  
Limit Info system.  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
Consider the system limits of Speed Limit Info.  
6. "Speed Limit Assistance"  
7. Select the desired setting:  
Upcoming speed limits can only be applied to  
Active Cruise Control with Distance Control.  
The system does not react or reacts to a lim-  
ited extent to the route ahead in the following  
situations:  
â–·
"Adjust speed limits": set tolerance for  
the speed adaptation that affects all  
speeds.  
â–·
If the vehicle location cannot be clearly de-  
termined by the navigation system.  
â–·
â–·
"2nd adjustm. up to": activate or deacti-  
vate additional speed adaptation.  
â–·
With wintry road conditions.  
"Adjust speed limits": With additional  
speed adjustment activated, set the  
tolerance for speed limits up to  
40 mph/60 km/h.  
Additional information:  
â–·
System limits of Speed Limit Information,  
refer to page 199.  
â–·
System limits of the sensors, refer to  
page 37.  
213  
 
 
Driver assistance systems  
CONTROLS  
Sensors  
Steering Assistant  
The system is controlled by the following sen-  
sors:  
Principle  
â–·
â–·
â–·
â–·
Cameras behind the windshield.  
The Steering Assistant helps keep the vehicle  
in the lane. For this purpose, the system ex-  
ecutes supporting steering movements, for in-  
stance when cornering.  
Front radar sensor.  
Radar sensors, side, front.  
Radar sensors, side, rear.  
Additional information:  
General information  
Depending on the speed, the system orients  
itself according to the lane boundaries or vehi-  
cles in front.  
Sensors of the vehicle, refer to page 37.  
Functional requirements  
â–·
â–·
â–·
Speed below 130 mph/210 km/h.  
Sensors on the steering wheel detect whether  
the steering wheel is being touched.  
Sufficient lane width.  
Above approx. 43 mph/70 km/h: lane  
boundary on both sides is detected.  
Safety information  
â–·
Below approx. 43 mph, 70 km/h: lane  
boundary on both sides or vehicle driving  
ahead is detected.  
Warning  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
â–·
â–·
â–·
â–·
â–·
Hands on the steering wheel rim.  
Wide curves.  
Drive in the center of the lane.  
Turn signal switched off.  
The sensor system calibration process is  
complete.  
â–·
â–·
â–·
Cruise Control with Distance Control active.  
Seat belt on the driver's side fastened.  
Forward Collision Warning with braking  
function on.  
Overview  
â–·
â–·
Daytime Pedestrian Collision Mitigation on.  
Side Collision Warning active.  
Buttons on the steering wheel  
Button Function  
Turning Steering Assistant on/off  
Assisted Driving Mode  
Steering Assistant with Traffic Jam  
Assistant on/off.  
General information  
Switch function on.  
This button is used to switch the con-  
figured function on and off.  
214  
 
 
Driver assistance systems  
CONTROLS  
The button can be used to set the pri-  
marily used function.  
Turning off the system  
Press the button on the steering wheel.  
Setting the function  
The indicator goes out.  
When the system is active, press the  
button repeatedly until the desired  
function is selected in the toolbar. The  
toolbar for Assisted Driving mode is displayed  
at the bottom of the instrument cluster.  
The system does not perform supportive  
steering wheel movements.  
Stopping Steering Assistant  
automatically  
The system interrupts the supporting steering  
movements automatically, for example in the  
following situations:  
Icon  
Function  
Cruise Control with Distance Control.  
â–·
â–·
â–·
At a speed above 130 mph/210 km/h.  
When the steering wheel is released.  
Cruise Control with Distance Control  
and Steering Assistant.  
When performing a manual braking proc-  
ess.  
â–·
â–·
â–·
â–·
â–·
With strong steering intervention.  
When leaving own lane.  
The selected function is shown in green.  
Turning on the system  
When the turn signal is switched on.  
When the lane is too narrow.  
1.  
Press the button on the steering  
If a lane boundary is not detected for a cer-  
tain period of time and no vehicle is driving  
ahead.  
wheel.  
â–·
â–·
Active Cruise Control with Distance Control  
is stopped.  
2.  
Adjust the Steering Assistant if nec-  
essary.  
The seat belt on the driver's side is unfas-  
tened.  
Indicator light illuminates gray.  
The system is on standby and does not  
manipulate steering movements.  
Indicator light illuminates gray.  
The system is on standby and does not  
manipulate steering movements.  
System activates automatically as soon as all  
function conditions are fulfilled.  
System activates automatically as soon as all  
function conditions are fulfilled.  
The indicator light illuminates green.  
The system is active.  
With the system switched on, the Daytime Pe-  
destrian Collision Mitigation system and the  
Side Collision Warning are activated.  
215  
 
 
Driver assistance systems  
CONTROLS  
Additional information:  
Displays in the instrument cluster  
Assisted View, refer to page 146.  
Icon  
Description  
Displays on the steering wheel  
Indicator light illuminates gray:  
The system is ready.  
Indicator light illuminates green:  
The system is activated.  
The system supports the driver in  
keeping the vehicle within the lane.  
Warning light flashes yellow:  
A lane boundary has been crossed.  
The two LED lights above the buttons illumi-  
nate analogously to the displays in the instru-  
ment cluster:  
The steering wheel vibrates where  
applicable.  
Warning light illuminates yellow and  
acoustic signal may sound:  
â–·
â–·
Yellow: system interruption is imminent.  
Red: system will be deactivated.  
System interruption is imminent.  
The steering wheel displays can be switched  
on/off if required.  
Depending on national-market ver-  
sion: The warning light flashes or illu-  
minates red. A signal sounds:  
1.  
Apps menu  
The system is switched off.  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Feedback via steering wheel"  
6. "Light elements"  
Warning light illuminates yellow:  
Hands are not grasping the steering  
wheel. The system is still active.  
Warning light illuminates red, acous-  
tic signal sounds:  
Displays in the Head-up display  
All system information can also be displayed in  
the Head-up display.  
Hands are not grasping the steering  
wheel. System interruption is immi-  
nent.  
The system reduces the speed to a  
standstill if applicable.  
System limits  
It is possible that the system will  
not execute any supporting steering  
movements.  
General information  
The system cannot be activated or meaning-  
fully used in certain situations, e.g., while tow-  
ing a trailer.  
Depending on vehicle equipment and national-  
market version, information for the system is  
displayed in the Assisted View of the instru-  
ment cluster.  
216  
 
 
Driver assistance systems  
CONTROLS  
Drive attentively, and react to the current sur-  
rounding traffic situation. If necessary, inter-  
vene actively, for instance by braking, steering  
or making an evasive maneuver.  
Safety information  
Warning  
Because of system limitations, this system  
may either not respond, or respond too late,  
incorrectly, or without cause. There is a risk  
of accident, injury, or property damage. Ac-  
tively intervene as warranted. Refer to the in-  
formation in this Owner’s Manual regarding  
the scope of the system’s operation and limi-  
tations.  
Assisted Driving Mode Plus  
Principle  
Assisted Driving Mode Plus helps drivers guide  
their vehicle through traffic jams.  
Supporting steering movements take place  
without the driver actively steering.  
System limits of the sensors  
Additional information:  
General information  
The system uses the sensors of the Steering  
Assistant.  
â–·
â–·
Cameras, refer to page 37.  
Radar sensors, refer to page 38.  
Safety information  
Hands on the steering wheel  
The sensors cannot detect hand-steering  
wheel contact in the following situations:  
Warning  
â–·
â–·
Driving with gloves.  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
Protective covers on the steering wheel.  
Narrow lanes  
When driving within narrow lanes, the system  
cannot be activated or effectively used, for in-  
stance in the following situations:  
â–·
â–·
In construction areas.  
Depending on the equipment, with auto-  
matic formation of emergency lanes.  
Federal, state, or local laws may differ, and  
the use of this function may be prohibited or  
limited. Before use, check federal, state, and  
local laws.  
â–·
Within city limits.  
Weather  
The following restrictions can occur under un-  
favorable weather or light conditions:  
Additionally, the notices for the Steering Assis-  
tant apply.  
â–·
Poorer recognition of vehicles and lane  
boundaries.  
Additional information:  
Steering Assistant, refer to page 214.  
â–·
Short-term interruptions for vehicles that  
are already recognized.  
217  
 
 
Driver assistance systems  
CONTROLS  
Depending on vehicle equipment, this function  
can be enabled/disabled on the control dis-  
play.  
Functional requirements  
â–·
The functional requirements of the Steering  
Assistant are fulfilled.  
1.  
Apps menu  
Functional requirements, refer to page 214.  
The Steering Assistant is active.  
2. "Vehicle"  
â–·
â–·
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
The function is only available on certain  
street types, e.g. freeways.  
â–·
Driving on a road without pedestrians or  
cyclists.  
6. "Assisted Driving"  
7. "Assisted Driving Plus"  
â–·
â–·
Sufficient lane width.  
Lane markings and a vehicle driving ahead  
are detected.  
Displays in the instrument cluster  
â–·
â–·
Speed below approx. 40 mph/60 km/h.  
Icon  
Description  
The Driver Attention Camera in the instru-  
ment cluster detects that the driver is pay-  
ing attention to the surrounding traffic.  
Indicator light green: system is active.  
â–·
The function must be available in the coun-  
try in which the vehicle is driven.  
Indicator light white: system is ready.  
Switching on Assisted Driving Mode  
Plus  
Gray indicator light: the system has  
been interrupted.  
As soon as all functional requirements  
are met, an additional icon for Assisted  
Driving Mode Plus will be displayed on  
the toolbar. The toolbar is displayed at  
the bottom of the instrument cluster.  
Displays on the steering wheel  
Select Assisted Driving Mode Plus with  
the button on the steering wheel.  
The icon for Assisted Driving Mode  
Plus is shown in green.  
Two green LED lights are illuminated on the  
steering wheel.  
The indicator light in the instrument cluster is  
shown in green.  
The two LED lights above the buttons illumi-  
nate analogously to the displays in the instru-  
ment cluster:  
The system begins to assist the driver with  
vehicle control.  
â–·
â–·
â–·
Green: the system is active.  
Yellow: system will be interrupted.  
Red: system will be deactivated.  
218  
 
 
Driver assistance systems  
CONTROLS  
Steering Assistant, refer to page 214.  
System limits  
Functional requirements  
General information  
â–·
The functional requirements of the Steering  
Assistant are fulfilled.  
The limits of the Steering Assistant system ap-  
ply.  
Functional requirements, refer to page 214.  
Additional information:  
â–·
Driving on a road without pedestrians or cy-  
clists and with physical barriers to oncom-  
ing traffic such as crash barriers.  
Steering Assistant, refer to page 214.  
Driver Attention Camera  
The limits of the Driver Attention Camera sys-  
tem apply.  
â–·
â–·
Crossable lane boundaries are detected.  
Maximum speed approx.  
110 mph/180 km/h.  
Additional information:  
â–·
â–·
The minimum speed is country-specific.  
Driver Attention Camera, refer to page 191.  
The function must be available in the coun-  
try in which the vehicle is driven.  
Lane Change Assistant  
Turning on/turning off Lane Change  
Assistant  
Principle  
The Lane Change Assistant also assists when  
changing lanes on multi-lane roads.  
1.  
Apps menu  
2. "Vehicle"  
3. "Driving settings"  
4. "Driver Assistance"  
5. "Driving"  
General information  
The system uses the sensors of the Steering  
Assistant.  
6. "Assisted Driving"  
7. "Lane Change Assistant"  
Safety information  
Changing lanes  
Warning  
1. Ensure that the traffic situation permits  
changing lanes.  
The system cannot serve as a substitute for  
the driver’s personal judgment in assessing  
the traffic situation. Based on the limits of  
the system, it cannot independently react to  
all traffic situations. There is a risk of acci-  
dent, injury, or property damage. Adjust driv-  
ing style to traffic conditions. Watch the sur-  
rounding traffic situation closely, be ready to  
take over steering and braking at any time,  
and actively intervene where appropriate.  
2. Press the turn signal lever in the desired  
direction to the resistance point.  
Additionally, the notices for the Steering Assis-  
tant apply.  
Additional information:  
219  
 
 
Driver assistance systems  
CONTROLS  
A supporting steering movement in the re-  
quired direction can be detected a short  
time later.  
displayed in the Assisted View of the instru-  
ment cluster.  
Additional information:  
Assisted View, refer to page 146.  
System limits  
The limits of the Steering Assistant system ap-  
ply.  
Additional information:  
Steering Assistant, refer to page 214.  
After the lane change, the system helps keep  
the vehicle in the new lane.  
Canceling a lane change  
The lane change can be canceled by steering  
movement into the opposite direction.  
Displays in the instrument cluster  
Icon  
Description  
Green steering wheel icon.  
Green arrow icon for lane-changing.  
The system carries out a lane  
change.  
Green steering wheel icon.  
Gray line for lane marking on the ap-  
propriate side.  
The system detected the lane change  
request. Lane change not currently  
possible.  
Depending on the national-market  
version:  
Green steering wheel icon.  
Gray arrow icon for lane-changing.  
Lane change not possible; functional  
requirements not met.  
Depending on vehicle equipment and national-  
market version, information for the system is  
220