GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Vehicle Care 413
10. Disconnect the negative (–) batterycable. See “Negative Battery Cable
Disconnection” inBattery - North
America 0361.
Caution
If the steering column is locked, vehicle
damage may occur.
11. Move the steering wheel to make sure the steering column is unlocked.
12. For column shift transmissions, verify the transmission is in P (Park). Failing to put
the transmission into Park before flat
towing can damage the transmission.
13. Keep the RKE transmitter outside of the vehicle and manually lock the doors.
Access the vehicle by using the key in
the door lock. See Door Locks021.
Disconnecting the Towed Vehicle
Before disconnecting from the tow vehicle: 1. Park on a level surface. Secure the vehicle with wheel blocks.
2. Re-connect the negative (–) battery. See Battery - North America 0361. 3. Turn on the ignition without starting the
engine. With your foot off the brake
pedal, press and hold ENGINE START/
STOP for five seconds until the green
light comes on the button is illuminated.
See Ignition Positions 0222.
4. Set the parking brake. See Electric
Parking Brake 0245.
5. Disconnect from the tow vehicle.
6. Start the engine.
7. Shift the transmission to N (Neutral).
8. Shift the transfer case to 2
m(Two-Wheel
Drive High). When the shift to 2
m
(Two-Wheel Drive High) is complete, the
light in the instrument cluster will stop
flashing and stay lit. See
Four-Wheel-Drive Light 0122.
9. Check that the vehicle is in 2
m
(Two-Wheel Drive High) by starting the
engine and shifting the transmission to
D (Drive) and then to R (Reverse). There
should be movement of the vehicle while
shifting.
10. Shift the transmission to P (Park) and turn off the ignition.
11. Release the parking brake and remove the wheel blocks. 12. Reset any lost presets.
The outside temperature display will
default to 0 °C (32 °F) but will reset with
normal usage.
Dolly Towing
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Vehicle Care 421
3. Start on the outside edge of the soil andgently rub toward the center. Fold the
cleaning cloth to a clean area frequently
to prevent forcing the soil into the
fabric.
4. Continue gently rubbing the soiled area until there is no longer any color
transfer from the soil to the cleaning
cloth.
5. If the soil is not completely removed, use a mild soap solution followed only
by plain water.
If the soil is not completely removed, it may
be necessary to use a commercial upholstery
cleaner or spot lifter. Test a small hidden
area for colorfastness before using a
commercial upholstery cleaner or spot lifter.
If ring formation occurs, clean the entire
fabric or carpet.
After cleaning, use a paper towel to blot
excess moisture.
Cleaning High Gloss Surfaces and Vehicle
Information and Radio Displays
Use a microfiber cloth on high gloss surfaces
or vehicle displays. First, use a soft bristle
brush to remove dirt that can scratch the
surface. Then gently clean by rubbing with a
microfiber cloth. Never use window cleaners or solvents. Periodically hand wash the
microfiber cloth separately, using mild soap.
Do not use bleach or fabric softener. Rinse
thoroughly and air dry before next use.
Caution
Do not attach a device with a suction cup
to the display. This may cause damage
and would not be covered by the vehicle
warranty.
Instrument Panel, Leather, Vinyl, Other
Plastic Surfaces, Low Gloss Paint
Surfaces, and Natural Open Pore Wood
Surfaces
Use a soft bristle brush to remove dust from
knobs and crevices on the instrument
cluster. Use a soft microfiber cloth
dampened with water to remove dust and
loose dirt. For a more thorough cleaning,
use a soft microfiber cloth dampened with a
mild soap and water solution.
Caution
Soaking or saturating leather, especially
perforated leather, as well as other
interior surfaces, may cause permanent
damage. Wipe excess moisture from
(Continued)
Caution (Continued)
these surfaces after cleaning and allow
them to dry naturally. Never use heat,
steam, or spot removers. Do not use
liquids that contain alcohol or solvents on
leather seats. Do not use cleaners that
contain silicone or wax-based products.
Cleaners containing these solvents can
permanently change the appearance and
feel of leather or soft trim, and are not
recommended.
Do not use cleaners that increase gloss,
especially on the instrument panel. Reflected
glare can decrease visibility through the
windshield under certain conditions.
Caution
Use of air fresheners may cause
permanent damage to plastics and
painted surfaces. If an air freshener
comes in contact with any plastic or
painted surface in the vehicle, blot
immediately and clean with a soft cloth
dampened with a mild soap solution.
Damage caused by air fresheners would
not be covered by the vehicle warranty.
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Service and Maintenance 425
Because of the way people use vehicles,
maintenance needs vary. There may need to
be more frequent checks and services. The
Additional Required Services - Normal are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0215.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel (6.2L V8 Engine) 0305
or Recommended Fuel (2.7L L4 and 5.3L
V8 Engines) 0304.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal chart.
The Additional Required Services - Severe are
for vehicles that are:
.Mainly driven in heavy city traffic in hot
weather
.Mainly driven in hilly or mountainous
terrain
.Frequently towing a trailer
.Used for high speed or competitive
driving
.Used for taxi, police, or delivery service Refer to the information in the Maintenance
Schedule Additional Required Services -
Severe chart.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See
Doing Your
Own Service Work 0343.
Maintenance Schedule
Owner Checks and Services
Check the engine oil level. See Engine Oil
0 348.
Once a Month
.Check the tire inflation pressures,
including the spare. See Tire Pressure
0 384.
.Inspect the tires for wear. See Tire
Inspection 0389.
.Check the windshield washer fluid level.
See Washer Fluid 0358.
Engine Oil Change
When the CHANGE ENGINE OIL SOON
message displays, have the engine oil and
filter changed within the next 1 000 km/
600 mi. If driven under the best conditions,
the engine oil life system may not indicate
the need for vehicle service for up to a year.
The engine oil and filter must be changed at
least once a year and the oil life system
must be reset. Your trained dealer technician
can perform this work. If the engine oil life
system is reset accidentally, service the
vehicle within 5 000 km/3,000 mi since the
last service. Reset the oil life system when
the oil is changed. See Engine Oil Life
System 0350.
Engine Air Filter Change
When the REPLACE AT NEXT OIL CHANGE
message displays, the engine air filter
should be replaced at the next engine oil
change. When the REPLACE ENGINE AIR
FILTER SOON message displays, the engine
air filter should be replaced at the earliest
convenience. Reset the engine air filter life
system after the engine air filter is replaced.
See Engine Air Filter Life System 0351.
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
OnStar 453
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . . . . . . . . . . 453
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
OnStar Additional Information
OnStar Additional Information . . . . . . . . 454
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Red Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system that can
connect to an OnStar Advisor for Emergency,
Security, Navigation, Connections, and
Diagnostics Services. OnStar services may
require a paid service plan and data plan.
OnStar requires the vehicle battery and
electrical system, cellular service, and GPS
satellite signals to be available and
operating. OnStar acts as a link to existing
emergency service providers. OnStar may
collect information about you and your
vehicle, including location information. See
OnStar User Terms, Privacy Statement, and
Software Terms for more details including
system limitations at www.onstar.com (U.S.)
or www.onstar.ca (Canada). The OnStar system status light is next to
the OnStar buttons. If the status light is:
.Solid Green: System is ready.
.Flashing Green: On a call.
.Red: Indicates a problem.
.Off: System is off. PressQtwice to
speak with an OnStar Advisor.
Press
Qor call 1-888-4ONSTAR
(1-888-466-7827) to speak to an Advisor.
Functionality of the Voice Command button
may vary by vehicle and region.
Press
=to:
.Open the OnStar app on the infotainment
display. If equipped, the infotainment
system has OnStar controls in the
embedded OnStar app on the Home Page.
Most OnStar functions that can be
performed with the buttons can be done
using the app. To open the app, touch the
OnStar icon on the Home Page. App
updates require a corresponding service
plan. Features vary by region and model.
Features are subject to change. For more
information, see my.gmc.com/learn or
press
Q.
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
OnStar 455
.After change in ownership and at
90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor can
cancel or change account information.
Selling/Transferring the Vehicle
Call 1-888-4ONSTAR (1-888-466-7827)
immediately to terminate your OnStar or
connected services if the vehicle is disposed
of, sold, transferred, or if the lease ends.
Reactivation for Subsequent Owners
PressQand follow the prompts to speak to
an Advisor as soon as possible. The Advisor
will update vehicle records and explain
OnStar or connected service options.
How OnStar Service Works
Automatic Crash Response, Emergency
Services, Crisis Assist, Stolen Vehicle
Assistance, Remote Services, and Roadside
Assistance are available on most vehicles.
Not all OnStar services are available
everywhere or on all vehicles. For more
information, a full description of OnStar services, system limitations, and OnStar User
Terms, Privacy Statement, and Software
Terms:
.Call 1-888-4ONSTAR (1-888-466-7827).
.See www.onstar.com (U.S.).
.See www.onstar.ca (Canada).
.Call TTY 1-877-248-2080.
.PressQto speak with an Advisor.
OnStar or connected services cannot work
unless the vehicle is in a place where OnStar
has an agreement with a wireless service
provider for service in that area. The
wireless service provider must also have
coverage, network capacity, reception, and
technology compatible with OnStar or
connected services. Service involving location
information about the vehicle cannot work
unless GPS signals are available,
unobstructed, and compatible with the
OnStar hardware. OnStar or connected
services may not work if the OnStar
equipment is not properly installed or it has
not been properly maintained. If equipment
or software is added, connected,
or modified, OnStar or connected services
may not work. Other problems beyond the
control of OnStar —such as hills, tall
buildings, tunnels, weather, electrical system
design and architecture of the vehicle, damage to the vehicle in a crash, or wireless
phone network congestion or jamming
—
may prevent service.
See Radio Frequency Statement 0450.
Services for People with Disabilities
Advisors provide services to help with
physical disabilities and medical conditions.
Press
Qto help:
.Locate a gas station with an attendant to
pump gas.
.Find a hotel, restaurant, etc., that meets
accessibility needs.
.Provide directions to the closest hospital
or pharmacy in urgent situations.
TTY Users
OnStar has the ability to communicate to
deaf, hard-of-hearing, or speech-impaired
customers while in the vehicle. The available
TTY system can provide in-vehicle access to
all OnStar services, except Virtual Advisor
and OnStar Turn-by-Turn Navigation.
If equipped, TTY mode can be turned on or
off by touching Settings, then Apps, and
then Phone. When TTY mode is on, phone
calls can be made or received with OnStar
using the infotainment display.
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
458 Connected Services
Connected Services
Connected Services
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
Connected Services
Navigation
Navigation requires a specific OnStar or
connected service plan.
Press
Qto receive Turn-by-Turn directions
or have them sent to the vehicle’s
navigation screen, if equipped. Select
Turn-by-Turn Directions from the Services
tab of the OnStar app to call an Advisor or
select a recent or favorite destination. Touch
the navigation icons to select home, address,
or place. A destination transfer from OnStar
will show the detail view of the destination
when it is transferred from OnStar to the
Navigation application. See www.onstar.com
for a coverage map. Services vary by model.
Map coverage is available in the United
States and Canada.
Turn-by-Turn Navigation
1. PressQto connect to an Advisor.
2. Request directions to be downloaded to the vehicle.
3. Follow the voice-guided commands.
Using Voice Commands During a
Planned Route
Functionality of the Voice Command button,
if equipped, may vary by vehicle and region.
For some vehicles, press
=to open the
OnStar app on the infotainment display.
Send Destination to Vehicle
Directions can be sent to the vehicle’s
navigation screen, if equipped.
Press
Q, then ask the Advisor to download
directions to the vehicle’s navigation system,
if equipped. After the call ends, the
navigation screen will provide prompts to
begin driving directions. Routes that are sent
to the navigation screen can only be
canceled through the navigation system.
See www.onstar.com (U.S.) or www.onstar.ca
(Canada).
Connections
The following services help with staying
connected.
For coverage maps, see www.onstar.com
(U.S.) or www.onstar.ca (Canada).
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-15883563) - 2022 - CRC - 11/19/21
Connected Services 459
Ensuring Security
.Change the default passwords for the
Wi-Fi hotspot and myGMC mobile
application. Make these passwords
different from each other and use a
combination of letters and numbers to
increase the security.
.Change the default name of the SSID
(Service Set Identifier). This is your
network’s name that is visible to other
wireless devices. Choose a unique name
and avoid family names or vehicle
descriptions.
Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in Wi-Fi
hotspot that provides access to the Internet
and web content at 4G LTE speed. Up to
seven mobile devices can be connected.
A data plan is required. Use the in-vehicle
controls only when it is safe to do so. 1. To retrieve Wi-Fi hotspot information, press
=to open the OnStar app on the
infotainment display, then select Wi-Fi
Hotspot. On some vehicles, touch Wi-Fi
or Wi-Fi Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID), password, and on
some vehicles, the connection type (no Internet connection, 3G, 4G, 4G LTE), and
signal quality (poor, good, excellent). The
LTE icon shows connection to Wi-Fi. It is
possible that the icon may not illuminate
even though the vehicle has an active
connection.
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR to connect
with an Advisor. On some vehicles, the
SSID and password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s Wi-Fi
hotspot will connect automatically to your
mobile devices. Manage data usage by
turning Wi-Fi on or off on your mobile
device, using the myGMC mobile app, or
by contacting an OnStar Advisor. On some
vehicles, Wi-Fi can also be managed from
the Wi-Fi Hotspot menu.
MyGMC Mobile App (If Available)
Download the myGMC mobile app to
compatible Apple and Android smartphones.
GMC users can access the following services
from a smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle’s fuel level, oil life,
or tire pressure, if factory-equipped with
the Tire Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/off,
manage settings, and monitor data
consumption, if equipped.
.Locate a dealer and schedule service.
.Request Roadside Assistance.
.Set a parking reminder with pin drop,
take a photo, make a note, and set a
timer.
.Connect with GMC on social media.
Features are subject to change. For myGMC
mobile app information and compatibility,
see my.gmc.com.
An active OnStar or connected service plan
may be required. A compatible device,
factory-installed remote start, and power
locks are required. Data rates apply. See
www.onstar.com for details and system
limitations.
GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-15883563) - 2022 - CRC - 11/19/21
Index 465
FluidAutomatic Transmission . . . . . . . . . . . . . . . 350
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Forward Collision Alert (FCA) System . . . . 293
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Drive Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363 Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Heated and Ventilated . . . . . . . . . . . . . . . . . . 52
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Economy, Driving for Better . . . . . . . . . . . 205
Filling a Portable Fuel Container . . . . . . . 308
Filling the Tank . . . . . . . . . . . . . . . . . . . 306, 307
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 305 Fuel (cont'd)
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Low Fuel Warning Light . . . . . . . . . . . . . . . 126
Management, Active . . . . . . . . . . . . . . . . . . . 230
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 305
Recommended . . . . . . . . . . . . . . . . . . . . 304, 305
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 406
Fuses Engine Compartment Fuse Block . . . . . . . 370
Fuses and Circuit Breakers . . . . . . . . . . . . . 370
Instrument Panel Fuse Block . . . . . . . 373, 375
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . .142Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Gauges
Engine Coolant Temperature . . . . . . . . . . . . 115
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 114
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Transmission Temperature . . . . . . . . . . . . . . 116
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Warning Lights and Indicators . . . . . . . . . 108 General Information
Service and Maintenance . . . . . . . . . . . . . . 424
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Glass Replacement . . . . . . . . . . . . . . . . . . . . . . . 365
Global Positioning System (GPS) . . . . . . . . . . 171
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445
Guidance Problems with the Route . . . . . . . . . . . . . . . 172
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Hazard Warning Flashers . . . . . . . . . . . . . . . . 148
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Head-up Display . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 366
Daytime Running Lamps (DRL) . . . . . . . . . 147
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 127
High/Low Beam Changer . . . . . . . . . . . . . . 147
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 127
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54