TCS GMC SIERRA 2024 User Guide

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
248 Driving and Operating
Irregular Objects Affecting ACC
ACC may have difficulty detecting the
following objects:
.Vehicles in front of your vehicle that have
a rear aspect that is low, small,
or irregular
.An empty truck or trailer that has no
cargo in the cargo bed
.Vehicles with cargo extending from the
back end
.Non-standard shaped vehicles, such as
vehicle transport, vehicles with a side car
fitted, or horse carriages
.Vehicles that are low to the road surface
.Objects that are close to the front of your
vehicle
.Vehicles on which extremely heavy cargo
is loaded in the cargo area or rear seat
ACC Automatically Disengages
ACC may automatically disengage and the
driver will need to manually apply the
brakes to slow the vehicle if:
.The front camera is blocked or visibility is
reduced.
.The Traction Control System (TCS) or
StabiliTrak/ESC system has activated or
been disabled.
.There is a fault in the system.
.A DIC message displays to indicate that
ACC is temporarily unavailable.
The ACC indicator will turn white when ACC
is no longer active.
In some cases, when ACC is temporarily
unavailable, regular cruise control may be
used. See “Switching Between ACC and
Regular Cruise Control” previously in this
section. Always consider driving conditions
before using either cruise control system.
Notification to Resume ACC
ACC will maintain a follow gap behind a
detected vehicle and slow your vehicle to a
stop behind that vehicle. If the stopped vehicle ahead has driven
away and ACC has not resumed, the vehicle
ahead indicator will flash as a reminder to
check traffic ahead before proceeding. In
addition, the left and right sides of the
Safety Alert Seat (if equipped) will pulse
three times, or three beeps will sound. To
view available settings from the
infotainment screen, touch Settings >
Vehicle > Collision/Detection Systems > Alert
Type > Adaptive Cruise Go Notifier.
When the vehicle ahead drives away, ACC
resumes automatically if the stop was brief.
If necessary, press RES+ or the accelerator
pedal to resume ACC. If stopped for more
than two minutes or if the driver door is
opened and the driver seat belt is
unbuckled, the ACC automatically applies the
Electric Parking Brake (EPB) to hold the
vehicle. The EPB status light will turn on.
See
Electric Parking Brake 0234. To release
the EPB, press the accelerator pedal.
A DIC warning message may display
indicating to shift to P (Park) before exiting
the vehicle. See Vehicle Messages 0139.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Driving and Operating 295
If TSC is enabled, the Traction Control
System (TCS)/StabiliTrak/ESC warning light
will flash on the instrument cluster. Reduce
vehicle speed by gradually removing your
foot from the accelerator. If trailer sway
continues, StabiliTrak/ESC can reduce engine
torque to help slow the vehicle. TSC will not
function if StabiliTrak/ESC is turned off. See
Traction Control/Electronic Stability Control
0236.
{Warning
Trailer sway can result in a crash and in
serious injury or death, even if the
vehicle is equipped with TSC.
(Continued)
Warning (Continued)
If the trailer begins to sway, reduce
vehicle speed by gradually removing your
foot from the accelerator. Then pull over
to check the trailer and vehicle to help
correct possible causes, including an
improperly or overloaded trailer,
unrestrained cargo, improper trailer hitch
configuration, or improperly inflated or
incorrect vehicle or trailer tires. See
Towing Equipment0284 for trailer
ratings and hitch setup recommendations.
Aftermarket Electronic Trailer Sway
Control Devices
Some trailers may come equipped with an
electronic device designed to reduce or
control trailer sway. Aftermarket equipment
manufacturers also offer similar devices that
connect to the wiring between the trailer
and the vehicle. These devices may interfere
with the vehicle’s trailer brake or other
systems, including integrated anti-sway
systems, if equipped. Messages related to
trailer connections or trailer brakes could
appear on the DIC. The effects of these aftermarket devices may have on vehicle
handling or trailer brake performance is not
known.
{Warning
Use of aftermarket electronic trailer sway
control devices could result in reduced
trailer brake performance, loss of trailer
brakes, or other malfunctions, and result
in a crash. You or others could be
seriously injured or killed. Before using
one of these devices:
.Ask the device or trailer manufacturer
if the device has been thoroughly
tested for compatibility with the
make, model, and year of your vehicle
and any optional equipment installed
on your vehicle.
.Before driving, check the trailer brakes
are working properly, if equipped.
Drive the vehicle with the trailer
attached on a level road surface that
is free of traffic at about 32-40 km/h
(20-25 mph) and fully apply the
manual trailer brake apply lever. Also,
check the trailer brake lamps and
other lamps are functioning correctly.
(Continued)

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Index 431
Lamps (cont'd)Exterior Lamps Off Reminder . . . . . . . . . . 145
Exterior Lighting Battery Saver . . . . . . . . 152
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Fog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
High/Low Beam Changer . . . . . . . . . . . . . . 145
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Malfunction Indicator (Check
Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Lane
Departure Warning Light . . . . . . . . . . . . . . 126
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 60
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 91
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Illumination Control . . . . . . . . . . . . . . . . . . . 150
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148 Lights
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 121
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Automatic Emergency Braking (AEB) Disabled . . . . . . . . . . . . . . . . . . . . . . . 126
Brake System Warning . . . . . . . . . . . . . . . . 124
Charging System . . . . . . . . . . . . . . . . . . . . . . 122
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Cruise Control Light . . . . . . . . . . . . . . . . . . . . . 131
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Driver Mode Control . . . . . . . . . . . . . . . . . . . 128
Electric Parking Brake . . . . . . . . . . . . . . . . . . 124
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 129
Four-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . 125
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . 130
Gauges and Indicators . . . . . . . . . . . . . . . . . . 111
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . 130
Hill Descent Control . . . . . . . . . . . . . . . . . . . 126
Lane Departure Warning . . . . . . . . . . . . . . . 126
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . 129
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 120
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Lights (cont'd)
Service Electric Parking Brake . . . . . . . . . . 124
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 125
Traction Control System
(TCS)/Electronic Stability Control
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Lock Steering Column . . . . . . . . . . . . . . . . . . . . . . . . 33
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . 239
Locks Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . 23
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 23
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 23
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Low Fuel Warning Light . . . . . . . . . . . . . . . . . 129
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . .81
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 50 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
436 Index
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 227
Tow/Haul Mode Light . . . . . . . . . . . . . . . . . . . . 125
TowingApp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Driving Characteristics . . . . . . . . . . . . . . . . . 276
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
General Information . . . . . . . . . . . . . . . . . . . 276
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 380
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Trailer Sway Control (TSC) . . . . . . . . . . . . . 294
Traction
Control System (TCS)/ElectronicStability Control Light . . . . . . . . . . . . . . . . . 127
Control/Electronic Stability Control . . . . 236
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Trademarks and License Agreements . . . . . 188
Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 294
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Towing App . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Transfer Case Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 228
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . 317
Temperature Gauge . . . . . . . . . . . . . . . . . . . . . 119 Transportation Program, Courtesy . . . . . . . 410
Transporting
a Disabled Vehicle . . . . . . . . . . . . . . . . . . . . . 379
Items That Can Catch Fire . . . . . . . . . . . . . . . 31
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Truck Bed Camera Rearview Mirror . . . . . . . .41
Truck-Camper Loading Information . . . . . . . .214
TTY Users Customer Assistance . . . . . . . . . . . . . . . . . . . 407
Turn and Lane-Change Signals . . . . . . . . . . . .147
Turn Signal Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 334
U
Uniform Tire Quality Grading . . . . . . . . . . . . 361
Universal Remote System . . . . . . . . . . . . . . . . 140Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Updates Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Using
Infotainment System . . . . . . . . . . . . . . . . . . . 157
Navigation System . . . . . . . . . . . . . . . . . . . . . 165
This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
V
VehicleAhead Indicator . . . . . . . . . . . . . . . . . . . . . . . . 126
Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Data Recording and Privacy . . . . . . . . . . . . 415
Identification Number (VIN) . . . . . . . . . . . . 401
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . 139
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Vehicle Security
Steering Column Lock . . . . . . . . . . . . . . . . . . . 33
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . 168
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 119