2022 GMC SIERRA light

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Driving and Operating 329
the trailer tire sidewall. If the speed rating is
not shown, the default trailer tire speed
rating is 105 km/h (65 mph).
Trailering App
Trailer Lights App
If equipped, the Trailer Lights App is on the
infotainment home screen.
Touch Start to cycle the trailer lamps on and
off to determine if they are working. The
test follows this sequence:1. The running lights turn on first and remain on throughout the sequence.
2. The brake lights turn on for about two seconds.
3. The left turn signal light flashes three times.
4. The right turn signal light flashes three times.
5. The reverse lights turn on for about two seconds.
6. Steps 2–5 repeat for approximately one minute and 45 seconds, or until the
test deactivates.
Touch Stop to stop the test. The test
automatically ends after one minute and
45 seconds. The sequence also deactivates when any of
the following occur:
.The vehicle is turned off.
.The transmission is shifted out of P (Park).
.The brake pedal is pressed.
.The turn signal is activated.
.The hazard warning lights are activated.
Trailering App
If equipped, the Trailering App is on the
infotainment home screen.
If equipped this feature allows profiles for
connected trailers to be created to view
status, to store and track trailer usage
information, and to set up towing assist
features.
The Trailering App welcome page appears
when the Trailering App is opened for the
first time from the infotainment home
screen.
When a trailer is electrically connected and
a trailer profile has not been created, there
will be an option to create a profile, use a
guest profile, or select Accessory/No trailer.
When a trailer is electrically connected and
after a Trailer Profile has been created, the
trailer detection pop-up appears with a list
of all of the custom Trailer Profiles made onthe vehicle. To load an existing Trailer
Profile, select one of the Trailer Profiles
listed, or load the Guest Trailer Profile by
selecting GUEST TRAILER. Touching
Accessory/No trailer will select Accessory/No
trailer as the active Trailer Profile and will
dismiss the pop- up. Shifting the vehicle
from P (Park) will select Guest Trailer as the
active Trailer Profile and will dismiss the
pop-up.
Create a Trailer Profile
Touch Add Trailer on the trailer detection
pop-up or touch + Add Trailer in the
Trailering App.
Follow on-screen instructions to set up
profile.
After a profile is created, set up for
additional features may become available,
such as Tow/Haul Mode reminder, Trailer
Tire Pressure Monitoring System (TTPMS),
maintenance reminders, or towing assist.
Import a Trailer Profile
Touch Import on the trailer detection pop-up
or touch Import in the Trailering App.
Follow on-screen instructions to import a
profile.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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330 Driving and Operating
After a profile is imported, it can be selected
from the trailer list. The Tow/Haul Mode
reminder, Brake Gain Setting and Trailer Tire
Pressure sensor learning, if equipped, do not
import.
Trailer Feature Setup
Tow/Haul Mode Reminder
To turn the Tow/Haul Mode Reminder
setting on, touch Yes. To turn it off,
touch No.
Trailer Tire Pressure Setup
If the Trailer TTPMS is detected, touch the
Tire Pressure Monitoring icon to set up tire
pressure monitoring.
The trailer tire pressure sensors can transmit
up to 7 m (23 feet) from the hitch receiver of
the vehicle.
A trailer must be electrically connected to
the vehicle before starting the
sensor-to-vehicle learn process.
After selecting Start from the Learn Sensors
screen, use the Tool Method or the Manual
Method (described below) to learn each tire
sensor, during which the current tire number
will be highlighted.Each sensor has a maximum of two minutes
to learn. After a sensor is learned, a
checkmark appears next to the tire, the
vehicle horn sounds, the vehicle brake lamps
flash, and all working trailer lamps flash.
It then moves to the next sensor.
Touch Stop to cancel the process.
The recommended tire pressure must be
entered for the trailer tires. This allows the
vehicle to alert when the tire pressure is
high or low.
TTPMS must learn the location of the
installed tire sensors to show correct air
pressure and temperature for each tire. To
set up, use one of the following options or
see a tire or trailer dealer for service. The
learning process must be repeated when the
trailer tires are rotated or replaced.
Tool Method: A TTPMS activation tool can
be purchased separately to learn the sensor
locations.
Manual Method: Without the tool, the air
pressure can be increased or decreased in
each tire for 10 seconds. Do not exceed the
maximum inflation pressure found on the
tire sidewalls. Make sure to readjust tire
pressure to the recommended level when
the process is complete.Sensor Learning Steps
To complete the sensor-to-vehicle learn
process:
1. Touch Start on the Learn Sensors screen. The horn chirps twice and the Learning
Active screen appears on the
infotainment screen.
2. Start with the driver side front trailer tire.
3. Activate the tool near the valve stem or adjust the air pressure of this tire until
the horn chirps and all working vehicle
and trailer lights flash.
The process stops without saving the
sensor locations if this step takes more
than two minutes.
4. Move to the next tire and repeat Step 3 for each sensor. The horn chirps twice
when all sensors are completed.
5. Return to the vehicle to complete the setup.
Maintenance Reminders
To set up maintenance reminders, touch the
Trailer Maintenance icon. Follow the
onscreen prompts. The maximum number of
reminders is 50.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
332 Driving and Operating
If trailer dimensions are out of range, this
feature will be unavailable.
Status View
If a trailer is connected, the Status view
shows status information for the active
trailer profile.
If no trailer is connected, the Status view
shows the last trailer profile with a status of
Not Connected.
The Status view shows:
.Lights
.Tires
.Maintenance
.Cameras
.Checklists
.Weight
.Towing AssistScroll right or left to see more options.
Each section shows high level status
information for the feature. Selecting a
section will open up a new screen with
additional information and/or options.
Selecting a camera view will open up a new
screen to preview the camera image. The
status view displays mileage and fuel
economy information.
Lights
This view displays the names of the trailer
connector pins, a graphic of the trailer
connector, and a graphic of the back of the
trailer.
Any connector pin that failed will be amber
color, and the location of the corresponding
connection will be highlighted on the
graphic of the back of the trailer.
If a trailer connection is detected without
any faults, the view will display No Issues
Found.
When a trailer is connected, the Trailering
App System detects the trailer connection
using the Stop/Turn Signal lighting circuits
and alerts the driver by requesting a trailer
profile setup through the Trailering App
System on the infotainment screen. If a
default trailer profile is selected, the
Trailering App System will not display a
Trailer Detection Alert to the user when a
trailer is connected.
When a trailer is connected and the vehicle
is off, the Trailering App System will
periodically pulse the lighting circuits of the
trailer to verify it is still connected. The
trailer lights may periodically flash as a
result of this trailer connection detection.
These flashes may be more visible in dark
ambient light environments. The flashing or
flickering lights are a normal condition and
the Trailering App System has built-in
protections to prevent the battery from
draining. When Theft Alert is enabled, the
frequency and pattern of this flashing will
change.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Driving and Operating 333
If a connected trailer becomes disconnected,
a message about the trailer disconnect will
appear on the Driver Information Center
(DIC) immediately (if vehicle is on) or the
next time the vehicle is turned on (if trailer
was disconnected while vehicle is off). Check
your trailer connection if needed.
Connection Problem
If any of the trailer connections are lost, a
message about the connection issue appears
on the DIC. The infotainment screen will also
show the connection issue in the Lights
Status view.
Connection Trailer Lighting Faults Detected
The Trailering App System monitors for
electrical faults on the trailer lights.
A message about the lighting issue appears
on the DIC. The infotainment screen will also
show the lighting issue in the Lights Status
view. Repair your trailer lights if needed.
A trailer lighting issue is not covered by
your GM warranty.
The Running Lights connection may not
detect partial outages. Activate the light test
to check all trailer lamps. See“Light Test”
following. Light Test
Touch Start Light Test to cycle the trailer
lights on and off to determine if they are
working. The test follows this sequence:
1. The running lights turn on first and remain on throughout the sequence.
2. The brake lights turn on for about two seconds.
3. The left turn signal light flashes three times.
4. The right turn signal light flashes three times.
5. The reverse lights turn on for about two seconds.
6. Steps 2-5 repeat for approximately on minute and 45 seconds, or until the test
deactivates.
Touch Stop to stop the test. The test will
automatically end after one minute and
45 seconds.
The sequence also deactivates when any of
the following occur:
.The vehicle is turned off.
.The transmission is shifted out of
P (Park).
.The brake pedal is pressed.
.The turn signal is activated.
.The hazard warning lights are activated.
Tires
Tire Pressure and Temperature
If the TTPMS sensor-to-vehicle learn process
was completed, the status view will display
the current tire pressure and temperature of
the trailer tires related to the active Trailer
Profile. If a tire’s pressure is low or high, the
color of the pressure value will be amber.
If a sensor malfunctions, the values are
dashed lines. If the screen displays “Service
Tire Pressure Monitoring System,” the
vehicle needs to be taken to a dealer for
service.
Touch to set up the TTPMS for the Trailer
Profile. See “Trailer Tire Pressure Setup”
previously in this section for details on the
setup. Also, touch Sensor Setup if the trailer

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Driving and Operating 335
Touch the box next to each item if that step
has been completed.
Touch
4to access a detailed view of each
step. Within each detailed view, touch Next
and Previous to navigate between steps.
Touch Clear All to clear the completed
statuses from all items in the current
checklist.
Custom Checklist Items
For each of the Trailer Profile checklists,
there is an option to create custom items to
view in the checklist. The custom item will
appear at the bottom of the checklist.
Guest Trailer and No Trailer Connected
If a Guest Trailer Profile is active, or if no
trailer is connected, the checklist will show
all of the checklists associated with Custom
Trailer Profiles in addition to default
checklist.
Weight
Touch to turn on or off the GCW Alert.
Touch
4to learn more about the GCW Alert.
When on, an alert may be presented when
the combined weight of the vehicle and
trailer may exceed the vehicle’s Gross
Combined Weight Rating (GCWR). For more
information on the Gross Combined Weight
(GCW) Alert, see Trailer Towing0313.
Towing Assist
A trailer should be connected to complete
this portion of profile setup.
Touch to set up towing assist features for
the Trailer Profile. See "Towing Assist" for
details on the setup.
Guest Trailer Status View
If the Guest Trailer Profile is active, the
Status view shows:
.Lights
.Cameras
.Checklist
.Weight
Scroll right or left to see more options.
The Trailer Status view displays mileage and
fuel economy information. Mileage and fuel
economy will reset after the trailer
disconnects.
Accessory/No Trailer Status View
If the Accessory/No Trailer profile is active,
trailer status information is not available.
Trailers View
Touch the trailer profile icon/name in the
Status View to view, activate, create, edit,
or delete Trailer Profiles.
If a trailer is connected, touch the Trailer
Profile name to activate a Trailer Profile.
There can be up to five Custom Trailer
Profiles on the vehicle.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
336 Driving and Operating
The Custom Trailer Profiles and Guest Trailer
are in order of the most frequently used.
The Accessory/No Trailer profile is shown
below the Custom Trailer Profiles and Guest
Trailer Profile.
All personalization features are based on the
settings for each driver in vehicle
personalization. The list of Trailer Profiles is
based on vehicle personalization settings.
Guest Trailer
If the Guest Trailer Profile is the active
Trailer Profile, trailer detection, lights/
connections status, theft, and the Tow/Haul
reminder alerts can be sent. The system will
not track total mileage or fuel economy, but
the system will track trip mileage and fuel
economy if the Guest Trailer Profile is active.
The TTPMS or maintenance reminders
cannot be set up for a Guest Trailer Profile.
The Guest Trailer Profile cannot be edited.
Touch
4to learn more about the Guest
Trailer option.
Accessory/No Trailer
If the Accessory/No Trailer Profile is active,
alerts will not be sent and the system will
not track mileage or fuel economy. The
TTPMS or maintenance reminders cannot be set up for the Accessory/No Trailer Profile.
The Accessory/No Trailer profile cannot be
edited.
No Trailer Connected
When there is no trailer connected, Trailer
Profiles cannot be activated but most
options can be edited.
Trailer Brake Gain Memory
The system can store the brake gain setting
of a Trailer Profile or a Guest Trailer Profile.
When a Trailer Profile or Guest Trailer Profile
is selected, and a brake gain setting is set
for that Trailer Profile, a quick notice will
appear to indicate that the system has
recalled that profile's brake gain setting.
If a Trailer Profile is already active and the
brake gain setting had been set for that
Trailer Profile, the quick notice will trigger
whenever the vehicle is turned on.
If there was an error in setting the brake
gain for a Trailer Profile, there will be a
notification. This pop-up will not appear if
the Guest Trailer Profile is active or if there
is no trailer connected.
Trailer brake gain should be set for a specific
trailering condition and must be adjusted
anytime vehicle loading, trailer loading,
or road surface conditions change.
Editing a Trailer Profile
Touch the trailer profile icon/name in the
Status View to access the Trailer
Profile view:
.Trailer Name
.Total Mileage
.Average Fuel Economy
.Set as Default Trailer
.GCW Alert
.Tow/Haul Mode Reminder Alert
.Theft Alert
.Maintenance Alert
.Delete/Remove Trailer

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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338 Driving and Operating
if the setting is on for the active Trailer
Profile, the vehicle has an OnStar or
connected service plan and the smartphone
number has been added to the account for
this notification.
If the setting is turned off for a given Trailer
Profile, the smartphone will not receive this
security notification even if the Trailer
Profile is active.
Tow/Haul Mode Reminder
This is a reminder to turn on the Tow/Haul
Mode when towing a trailer. SeeDriver
Mode Control 0249.
Touch Tow/Haul Mode Reminder to turn on/
off Tow/Haul Mode reminders for the
selected profile. These alerts are based on
the Trailer Profile, so the settings for each
Trailer Profile must be turned on or off.
This setting will default to OFF for each
Trailer Profile, including the Guest Trailer
Profile.
If Tow/Haul Mode is off and this setting is
on for a Trailer Profile, each time the vehicle
is turned on, a reminder will appear to turn
on Tow/Haul Mode when the Trailer Profile
is active. If Tow/Haul Mode is on and this setting is
on for a Trailer Profile, the reminder will not
appear when the Trailer Profile is active.
Conversions and Add-Ons
Add-On Electrical Equipment
{Warning
The Data Link Connector (DLC) is used for
vehicle service and Emission Inspection/
Maintenance testing. See
Malfunction
Indicator Lamp (Check Engine Light) 0119.
A device connected to the DLC —such as
an aftermarket fleet or driver-behavior
tracking device —may interfere with
vehicle systems. This could affect vehicle
operation and cause a crash. Such devices
may also access information stored in the
vehicle’s systems.
Caution
Some electrical equipment can damage
the vehicle or cause components to not
work and would not be covered by the
vehicle warranty. Always check with your
dealer before adding electrical equipment. Add-on equipment can drain the vehicle's
12-volt battery, even if the vehicle is not
operating.
The vehicle has an airbag system. Before
attempting to add anything electrical to the
vehicle, see
Servicing the Airbag-Equipped
Vehicle 070 and
Adding Equipment to the Airbag-Equipped
Vehicle 070.
For information on wiring auxiliary switches,
see www.gmupfitter.com or contact your
dealer.
Adding a Snow Plow or Similar
Equipment
Caution
Do not exceed 72 km/h (45 mph) with a
snow plow mounted to the vehicle. The
vehicle could overheat and be damaged.
Before installing a snow plow on the vehicle,
follow these guidelines:

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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Vehicle Care 341
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 342
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 342
Accessories and Modifications . . . . . . . . . 342
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 343
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Engine Compartment Overview . . . . . . . . 345
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
Engine Oil Life System . . . . . . . . . . . . . . . . 350
Automatic Transmission Fluid . . . . . . . . . 350
Engine Air Filter Life System . . . . . . . . . . . 351
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . 351
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 352
Engine Overheating . . . . . . . . . . . . . . . . . . . 356
Overheated Engine Protection Operating Mode . . . . . . . . . . . . . . . . . . . . . 357
Engine Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Brake Pad Life System . . . . . . . . . . . . . . . . . 359
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Battery - North America . . . . . . . . . . . . . . . 361
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 363
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363 Automatic Transmission Shift Lock
Control Function Check (Mechanical
Shifter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Wiper Blade Replacement . . . . . . . . . . . . . 364
Glass Replacement . . . . . . . . . . . . . . . . . . . . 365
Windshield Replacement . . . . . . . . . . . . . . 365
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 365Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 366
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 366
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . 366
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . 367
Center High-Mounted Stoplamp (CHMSL) and Cargo Lamp . . . . . . . . . . . . 367
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 368
Electrical System
Electrical System Overload . . . . . . . . . . . . 368
Fuses and Circuit Breakers . . . . . . . . . . . . . 370
Engine Compartment Fuse Block . . . . . . 370
Instrument Panel Fuse Block (Left) . . . . . 373
Instrument Panel Fuse Block (Right) . . . 375
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 378
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . 378
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 379
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 380
Tire Terminology and Definitions . . . . . . 382
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 384
Tire Pressure Monitor System . . . . . . . . . 385
Tire Pressure Monitor Operation . . . . . . 385
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 389
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 390
When It Is Time for New Tires . . . . . . . . 391
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 391
Different Size Tires and Wheels . . . . . . . 392
Uniform Tire Quality Grading . . . . . . . . . 393
Wheel Alignment and Tire Balance . . . . 394
Wheel Replacement . . . . . . . . . . . . . . . . . . . 394
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 395
Tire Changing . . . . . . . . . . . . . . . . . . . . . . . . . 397
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . 406
Jump Starting
Jump Starting - North America . . . . . . . . 407
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . 409
Recreational Vehicle Towing . . . . . . . . . . . 411