Deutsch
EnglishDriving and Operating -> Drive Systems for your Chevrolet Silverado 1500 2018-2025
230
Driving and Operating
When shifting to L (Low), the transmission
will shift to a preset lower gear range. For
this preset range, the highest gear available
will be displayed next to the L in the DIC.
See Driver Information Center (DIC) (Base
Level) 0 127 or Driver Information Center
(DIC) (Uplevel) 0 128. All gears below that
number are available to use. For example,
when 4 (Fourth) is shown next to the L,
1 (First) through 4 (Fourth) gears are shifted
automatically. To shift to 5 (Fifth) gear, tap
the right steering wheel control or shift into
D (Drive).
or when hauling heavy loads. See Driver
Mode Control 0 240 to activate Tow/
Haul Mode.
Tow/Haul Mode Grade Braking
Tow/Haul Mode Grade Braking is only
enabled while the Tow/Haul Mode is
selected and the vehicle is not in the Range
Selection Mode. See Manual Mode
(Mechanical Shifter) 0 227 or
Manual Mode (Electronic Shifter) 0 229.
Tow/Haul Mode Grade Braking assists in
maintaining desired vehicle speeds when
driving on downhill grades by using the
engine and transmission to slow the vehicle.
See Towing Equipment 0 307.
L (Low) will prevent shifting to a lower gear
range if the engine speed is too high. If the
vehicle speed is not reduced within the time
allowed, the lower gear range shift will not
be completed. Slow the vehicle, then tap the
left steering wheel control to the desired
lower gear range.
Drive Systems
Four-Wheel Drive
If equipped, four-wheel drive engages the
front axle for extra traction.
For vehicles without Driver Mode Control,
press the Tow/Haul button on the center
stack.
If equipped, the Stop/Start system will
become unavailable when Tow/Haul Mode is
active.
Read the appropriate section for transfer
case operation before using.
Cruise control can be used while in ERS.
Tow/Haul Mode
The Tow/Haul Mode adjusts the
transmission shift pattern to reduce shift
cycling. This provides increased performance,
vehicle control, and enhanced transmission
and engine cooling when driving down steep
hills or mountain grades, when towing,
Caution
If equipped with Active Hydraulic Assist, the
vehicle will provide a stiffer steering
response when Tow/Haul mode is engaged
to provide enhanced steering functionality.
Do not drive on clean, dry pavement in
4 m and 4 n (if equipped) for an extended
period of time. These conditions may
cause premature wear on the vehicle’s
powertrain.
Driving and Operating
231
An engagement noise and bump is normal
when shifting between 4 n and 4 m or
N (Neutral), with the engine running.
Driving on clean, dry pavement in 4 m or
4 n may:
.
Cause a vibration to be felt in the
steering system.
Shifting into 4 n will turn Traction Control
and StabiliTrak/Electronic Stability Control
(ESC) off. See Traction Control/Electronic
Stability Control 0 237.
.
Cause tires to wear faster.
Warning
{
If equipped with four-wheel drive, the
vehicle will be free to roll if the transfer
case is in N (Neutral), even when the shift
lever is in P (Park). You or someone else
could be seriously injured. Be sure the
Automatic Transfer Case
Two-Speed Transfer Case
Uplevel Shown, Base Level Similar
transfer case is in a drive gear — 2 m, 4 m,
If equipped, the transfer case controls are
used to shift into and out of four-wheel
drive.
or 4 n — or set the parking brake before
placing the transfer case in N (Neutral).
See Shifting Into Park (Mechanical Shifter)
0 216 or Shifting Into Park (Electronic
Shifter) 0 217.
To shift the transfer case, press the desired
button. The graphic in the instrument
cluster will flash while a shift is in progress.
The graphic displayed will change to indicate
the setting requested.
Caution
When the shift is complete the graphic will
stop flashing. The Driver Information Center
(DIC) message turns off once the shift is
complete. If the transfer case cannot
complete a shift request, it will go back to
its last chosen setting.
Extended high-speed operation in 4 n
may damage or shorten the life of the
drivetrain.
Work Truck and Custom
232
Driving and Operating
The settings are:
while climbing or descending steep hills.
While driving in 4 n, keep vehicle speed
below 72 km/h (45 mph).
If equipped, use 4 n, AUTO, or 4 m to provide
additional traction when parking on a steep
grade with poor traction such as ice, snow,
mud, or gravel.
N (Neutral) : Use only when the vehicle
needs to be towed. See Recreational Vehicle
Towing 0 403 or
Shifting into 4 n will turn Traction Control
and StabiliTrak/ESC off. See Traction Control/
Electronic Stability Control 0 237.
Transporting a Disabled Vehicle 0 402.
Shifting Into 4 n
2 m (Two-Wheel Drive High) : Use for driving
on most streets and highways. The front
axle is not engaged. This setting provides
the best fuel economy.
1. The ignition must be on and the vehicle
must be stopped or moving less than
5 km/h (3 mph) with the transmission in
N (Neutral). It is best for the vehicle to
be moving 1.6 to 3.2 km/h (1 to 2 mph).
Shifts between 2m, 4 m, and AUTO
Any of these shifts can be made at normal
driving speed.
AUTO (Automatic Four-Wheel Drive) : Use
when road surface conditions are variable.
When driving in AUTO, the front axle is
engaged, and the vehicle's power is sent to
the front and rear wheels automatically
based on driving conditions. This setting
provides slightly lower fuel economy
The actual 4x4 shift request is only made
after the button is released. The 4x4 graphic
will remain flashing until the shift request
has completed. A DIC message displays to
indicate that the 4x4 transfer case has been
requested to shift to the new desired state.
2. Press 4 n. The actual 4x4 shift request is
only made after the button is released.
The 4x4 graphic will remain flashing
until the shift request has completed.
A DIC message displays to indicate that
the 4x4 transfer case has been requested
to shift to the new desired state.
than 2 m.
Once the 4x4 shift has completed, the DIC
message disappears, the 4x4 graphic stops
flashing, and the current setting is indicated.
Once the 4x4 shift has completed, the
DIC message disappears, the 4x4 graphic
stops flashing and the current setting is
indicated.
4 m (Four-Wheel Drive High) : Use this
setting when extra traction is needed, such
as when driving on snowy or icy roads,
when off-roading, or when plowing snow.
When a shift to 2 m is completed successfully
while in P (Park), the parking brake will
engage. To resume driving, shift the
transmission to the desired gear and
manually release the parking brake or press
the accelerator pedal to begin driving. See
Electric Parking Brake 0 236.
If vehicle speed is higher when shift request
occurs, a DIC message displays. Reduce
vehicle speed.
4 n (Four-Wheel Drive Low) : This setting
engages the front axle and delivers extra
torque. Choose 4 n when driving off-road in
deep sand, deep mud, or deep snow, and
If the transmission is not in N (Neutral)
when shift request occurs, a DIC message
displays. The vehicle will allow 20 seconds
Driving and Operating
233
for the shift to occur. After this time, a
graphic in the instrument cluster will
indicate that the transfer case is in 4 n.
remain flashing until the shift request
has completed. A DIC message displays
to indicate the state of the request.
With the vehicle moving less than 5 km/h
(3 mph), and the transmission in N (Neutral),
attempt the shift again.
Once the 4x4 shift has completed, the
DIC message disappears, the 4x4 graphic
stops flashing, and the current setting is
indicated.
Shifting Into N (Neutral)
Caution
To shift into N (Neutral):
Shifting the transmission into gear before
the requested mode indicator light has
stopped flashing could damage the
transfer case.
1. Start the vehicle.
2. Shift the transmission to N (Neutral).
If vehicle speed is higher when shift
request occurs, a DIC message displays.
Reduce vehicle speed.
3. Shift the transfer case to 2 m.
4. Apply the parking brake and/or brake
pedal.
If the transmission is not shifted into
N (Neutral) or the vehicle has not slowed to
5 km/h (3 mph) within 20 seconds, the
transfer case will remain in its original state.
This will be indicated in the instrument
cluster.
If the transmission is not in N (Neutral)
when shift request occurs, DIC messages will
display. The vehicle will allow 20 seconds for
this shift to occur. After this time, a graphic
in the instrument cluster will indicate that
5. Press 2 m five times in 10 seconds until
the N (Neutral) graphic starts flashing in
the instrument cluster. When the shift is
complete, the graphic stops flashing.
If the parking brake and/or brake pedal
is not applied within 20 seconds, the
transfer case will remain in the original
state.
the transfer case is in 4 n.
With the vehicle moving less than
5 km/h (3 mph) and the transmission in
N (Neutral), attempt the shift again.
Caution
Shifting the transmission into gear before
the requested mode indicator light has
stopped flashing could damage the
transfer case.
Shifting Out of 4 n
6. If the transmission is not shifted into
N (Neutral) or the vehicle has not slowed
to 5 km/h (3 mph) within 20 seconds,
the transfer case will remain in its
original state. This will be indicated in
the instrument cluster.
1. The vehicle must be stopped or moving
less than 5 km/h (3 mph) with the
transmission in N (Neutral) and the
ignition on. It is best for the vehicle to
be moving 1.6 to 3.2 km/h (1 to 2 mph).
If the transmission is not shifted into
N (Neutral) or the vehicle has not slowed to
5 km/h (3 mph) within 20 seconds, the
transfer case will remain in its original state.
This will be indicated in the instrument
cluster.
2. Press 4 m, AUTO, or 2 m. The actual 4x4
shift request is only made after the
button is released. The 4x4 graphic will
234
Driving and Operating
Shifting Out of N (Neutral)
Single Speed Transfer Case
If equipped, the transfer case controls are
used to shift into and out of four-wheel
drive.
To shift out of N (Neutral):
1. Start the vehicle.
To shift the transfer case, press the desired
button. The graphic in the instrument
cluster will flash while a shift is in progress.
The graphic displayed will change to indicate
the setting requested.
2. Set the parking brake. See Electric
Parking Brake 0 236.
3. Shift the transmission to N (Neutral).
4. Shift the transfer case to 2 m. Transfer
case shifts out of N (Neutral) can only be
When the shift is complete the graphic will
stop flashing. The DIC message turns off
once the shift is complete. If the transfer
case cannot complete a shift request, it will
go back to its last chosen setting.
made into 2 m. When the shift to 2 m is
complete, the graphic in the instrument
cluster will stop flashing. If the transfer
case cannot complete a shift, the graphic
will return to the previously selected
setting.
Work Truck and Custom
The settings are:
2 m (Two-Wheel Drive High) : Use for driving
on most streets and highways. The front
axle is not engaged. This setting provides
the best fuel economy.
4 m (Four-Wheel Drive High) : Use this
setting when extra traction is needed, such
as when driving on snowy or icy roads,
when off-roading, or when plowing snow.
AUTO (Automatic Four-Wheel Drive)
Use when road surface conditions are
variable. When driving in AUTO, the front
axle is engaged, and the vehicle's power is
sent to the front and rear wheels
Uplevel Shown, Base Level Similar
Driving and Operating
235
automatically based on driving conditions.
This setting provides slightly lower fuel
Brakes
economy than 2 m.
Electric Brake Boost
Shifts between 2 m, 4 m, and AUTO
Vehicles equipped with electric brake boost
have hydraulic brake circuits that are
Any of these shifts can be made at normal
driving speed.
electronically controlled when the brake
pedal is applied during normal operation.
The system performs routine tests and turns
off within a few minutes after the vehicle is
turned off. Noise may be heard during this
time. If the brake pedal is pressed during
the tests or when the electric brake boost
system is off, a noticeable change in pedal
force and travel may be felt. This is normal.
If there is a problem with ABS, this warning
light stays on. See Antilock Brake System
(ABS) Warning Light 0 120.
The actual 4x4 shift request is only made
after the button is released. The 4x4 graphic
will remain flashing until the shift request
has completed. A DIC message displays.
ABS does not change the time needed to
get a foot on the brake pedal and does not
always decrease stopping distance. If you
get too close to the vehicle ahead, there will
not be enough time to apply the brakes if
that vehicle suddenly slows or stops. Always
leave enough room ahead to stop, even
with ABS.
Once the 4x4 shift has completed, the DIC
message disappears, the 4x4 graphic stops
flashing, and the current setting is indicated.
The actual 4x4 shift request is only made
after the button is released. The 4x4 graphic
will remain flashing until the shift request
has completed.
Antilock Brake System (ABS)
The Antilock Brake System (ABS) helps
prevent a braking skid and maintain steering
while braking hard.
Using ABS
A DIC message displays. Once the 4x4 shift
has completed, the DIC message disappears,
the 4x4 graphic stops flashing, and the
current setting is indicated.
Do not pump the brakes. Just hold the brake
pedal down firmly. Hearing or feeling ABS
operate is normal.
ABS performs a system check when the
vehicle is first driven. A momentary motor
or clicking noise may be heard while this
test is going on, and the brake pedal may
move slightly. This is normal.
Braking in Emergencies
ABS allows steering and braking at the same
time. In many emergencies, steering can
help even more than braking.
