towing GMC SIERRA 2024 Workshop Manual

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Vehicle Care 381
Dinghy Towing (Two-Wheel Drive)
Caution
If a two-wheel-drive vehicle is towed with
the rear wheels on the ground, the
transmission could be damaged. The
repairs would not be covered by the
vehicle warranty. Never tow the vehicle
with the rear wheels on the ground.
Two-wheel-drive vehicles should not be
towed with all four wheels on the ground.
Dinghy Towing (Four-Wheel Drive)
Only dinghy tow four-wheel-drive vehicles
with a two-speed transfer case that have an
N (Neutral) and a 4
n(Four-Wheel Drive Low)
setting.
{Warning
Shifting a four-wheel-drive vehicle's
transfer case into N (Neutral) can allow
the vehicle to move even if the
transmission is in P (Park). You or others
could be injured. Set the parking brake
and use wheel blocks before shifting the
transfer case to N (Neutral). To dinghy tow:
1. Position the vehicle being towed behind the tow vehicle, facing forward and on a
level surface.
2. Securely attach the vehicle being towed to the tow vehicle.
3. Apply the parking brake and start the engine.
4. Shift the transfer case to N (Neutral). See “Shifting into N (Neutral)” under
Four-Wheel Drive 0228.
5. With the engine running, release the parking brake and verify that the
transfer case is in N (Neutral) by shifting
the transmission to D (Drive) and then to
R (Reverse). There should be no
movement while shifting the
transmission.
6. Shift the transmission to D (Drive).
7. Turn the vehicle off. Disregard the Shift to P (Park) DIC message. See Ignition
Positions 0216.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
382 Vehicle Care
{Warning
To avoid death, serious injury,
or property damage, before dinghy
towing the vehicle, always disconnect and
secure the negative battery cable and
cover the negative battery post and cable
with a non-conductive material. If the
battery is left connected or the battery
cable contacts the post, the Electric
Parking Brake may activate during
towing, which could cause a crash.
8. Disconnect the negative (–) battery cable. See “Negative Battery Cable
Disconnection” inBattery - North
America 0327.
9. Shift the transmission to P (Park).
Caution
If the steering column is locked, vehicle
damage may occur.
10. Move the steering wheel to make sure the steering column is unlocked.
11. Keep the remote key outside of the vehicle and manually lock the doors.
Access the vehicle by using the key in
the door lock. See Door Locks022. Disconnecting the Towed Vehicle
Before disconnecting from the tow vehicle:
1. Park on a level surface. Secure the vehicle with wheel blocks.
2. Reconnect the negative (–) battery. See Battery - North America 0327.
3. Turn on the vehicle. With your foot off the brake pedal, press and hold ENGINE
START/STOP for five seconds until the
green light comes on in the button. See
Ignition Positions 0216.
4. Set the parking brake. See Electric
Parking Brake 0234.
5. Disconnect from the tow vehicle.
6. Shift the transmission to N (Neutral).
7. 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 0125.
8. Start the engine. 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. 9. Shift the transmission to P (Park) and
turn off the vehicle.
10. Release the parking brake and remove the wheel blocks.
11. 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 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Vehicle Care 383
Caution
Do not tow this vehicle with two wheels
on the ground, or vehicle damage could
occur. This damage would not be covered
by the vehicle warranty.
Dolly towing this vehicle is not allowed with
either the front or the rear tires on the
ground for two-wheel drive or four-wheel
drive, regardless of transfer case.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory. Use a
de-icing agent only when absolutely
necessary, and have the locks greased after
using. See Recommended Fluids and
Lubricants 0398.
Washing the Vehicle
To preserve the vehicle's finish, wash it
often and out of direct sunlight.
{Warning
Do not power wash any part of the
vehicle’s interior, including the vinyl floor
covering. This could damage safety and
other systems in the vehicle, which
would not be covered by the vehicle
warranty.
Caution
Do not use petroleum-based, acidic,
or abrasive cleaning agents as they can
damage the vehicle's paint, metal,
or plastic parts. If damage occurs, it
would not be covered by the vehicle
warranty. Approved cleaning products can
be obtained from your dealer. Follow all
manufacturer directions regarding correct
product usage, necessary safety
precautions, and appropriate disposal of
any vehicle care product.
Caution
Avoid using high-pressure washes closer
than 30 cm (12 in) to the surface of the
vehicle. Use of power washers exceeding
8 274 kPa (1,200 psi) can result in
damage or removal of paint and decals.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
394 Service and Maintenance
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 0210.
.Are driven on reasonable road surfaces
within legal driving limits.
.Use the recommended fuel. See
Recommended Fuel 0272.
Refer to the information in the Maintenance
Schedule Additional Required Services -
Normal Service.
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 Service.
{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 0311.
Maintenance Schedule
Tire Rotation and Required Services
Every 12 000 km (7,500 mi)
Tires are rotated to achieve a more uniform
wear for all tires. The first rotation is the
most important. Anytime unusual wear is noticed, rotate the
tires as soon as possible, check for proper
tire inflation pressure, and check for
damaged tires or wheels. If the unusual
wear continues after the rotation, check the
wheel alignment. See
When It Is Time for
New Tires 0359 and
Wheel Replacement 0362.
.Perform Multi-Point Vehicle Inspection.
See Multi-Point Vehicle Inspection (MPVI)
0 396.
.Lubricate body components. See Exterior
Care 0383.
Power Take Off (PTO) and Extended
Idle Use
When the vehicle is used with the PTO
equipment or used in a way that requires
extended idle time, one hour of use shall be
deemed the same as 53 km (33 mi). See
Driver Information Center (DIC) (Base Level)
0131 or
Driver Information Center (DIC) (Uplevel)
0 133 for hourmeter, if equipped.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Service and Maintenance 395
Additional Required Services–Normal
Service
Every 12 000 km (7,500 mi)
.Check engine oil level and oil
life percentage. If needed, change engine
oil and filter, and reset oil life system. Or
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
0 316.
.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 0317.
Every 36 000 km (22,500 mi)
.Replace passenger compartment air filter.
Or every 24 months, whichever comes
first. More frequent passenger
compartment air filter replacement may
be needed if driving in areas with heavy
traffic, poor air quality, high dust levels,
or environmental allergens. Passenger
compartment air filter replacement may
also be needed if there is reduced airflow,
window fogging, or odors. Your GM
dealer can help determine when to
replace the filter.
Every 80 500 km (50,000 mi)
.Change transfer case fluid, if equipped
with 4WD. Do not directly power wash
the transfer case and/or front/rear axle
output seals. High pressure water can
overcome the seals and contaminate the
transfer case fluid. Contaminated fluid will
decrease the life of the transfer case
and/or axles and should be replaced.
Every 156 000 km (97,500 mi)
.Replace spark plugs. Inspect spark plug
wires and/or boots. Every 161 000 km (100,000 mi)
.Replace hood and/or body lift support gas
struts. Or every 10 years, whichever
comes first. See
Gas Strut(s)0332.
Every 240 000 km (150,000 mi)
.Drain and fill engine cooling system. Or
every six years, whichever comes first.
See Cooling System 0319.
Severe Conditions Requiring More
Frequent Maintenance*
.Public service, military, or commercial use
vehicles to include the following:
‐ Ambulances, police cars, and
emergency rescue vehicles.
‐ Civilian vehicles such as light duty
pick-up trucks, SUVs, and passenger
cars that are used in military
applications.
‐ Recovery vehicles such as tow trucks
and flatbed single vehicle carriers or
any vehicle that is consistently used in
towing trailers or other loads.
‐ High use commercial vehicles such as
courier delivery vehicles, private
security patrol vehicles, or any vehicles
that operate on a 24-hour basis.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Customer Information 409
In the U.S., anyone driving the vehicle is
covered. In Canada, a person driving the
vehicle without permission from the owner
is not covered.
Roadside Assistance is not a part of the New
Vehicle Limited Warranty. General Motors
North America and GMC reserve the right to
make any changes or discontinue the
Roadside Assistance program at any time
without notification.
General Motors North America and GMC
reserve the right to limit services or
payment to an owner or driver if they
decide the claims are made too often, or the
same type of claim is made many times.
Services Provided
.Emergency Fuel Delivery:Delivery of
enough fuel for the vehicle to get to the
nearest service station.
.Lock-Out Service: Service to unlock the
vehicle if you are locked out. A remote
unlock may be available if you have
OnStar. For security reasons, the driver
must present identification before this
service is given.
.Emergency Tow from a Public Road or
Highway: Tow to the nearest GMC dealer
for warranty service, or if the vehicle was
in a crash and cannot be driven.
Assistance is not given when the vehicle
is stuck in the sand, mud, or snow.
.Flat Tire Change: Service to change a flat
tire with the spare tire. The spare tire,
if equipped, must be in good condition
and properly inflated. It is the owner's
responsibility for the repair or
replacement of the tire if it is not covered
by the warranty.
.Battery Jump Start: Service to jump start
a dead battery.
.Trip Interruption Benefits and Assistance:
If your trip is interrupted due to a
warranty event, incidental expenses may
be reimbursed within the Powertrain
warranty period. Items considered are
reasonable and customary hotel, meals,
rental car, or a vehicle being delivered
back to the customer, up to 500 miles.
Services Not Included in Roadside
Assistance
.Impound towing caused by violation of
any laws
.Legal fines
.Mounting, dismounting, or changing of
snow tires, chains, or other traction
devices
Service is not provided if a vehicle is in an
area that is not accessible to the service
vehicle or is not a regularly traveled or
maintained public road, which includes ice
and winter roads. Off-road use is not
covered.
Services Specific to Canadian-Purchased
Vehicles
.Fuel Delivery: Reimbursement is up to
7 liters. Diesel fuel delivery may be
restricted. Propane and other fuels are
not provided through this service.
.Lock-Out Service: Vehicle registration is
required.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
412 Customer Information
Insuring the Vehicle
Protect your investment in the GM vehicle
with comprehensive and collision insurance
coverage. There are significant differences in
the quality of coverage afforded by various
insurance policy terms. Many insurance
policies provide reduced protection to the
GM vehicle by limiting compensation for
damage repairs through the use of
aftermarket collision parts. Some insurance
companies will not specify aftermarket
collision parts. When purchasing insurance,
we recommend that you ensure that the
vehicle will be repaired with GM original
equipment collision parts. If such insurance
coverage is not available from your current
insurance carrier, consider switching to
another insurance carrier.
If the vehicle is leased, the leasing company
may require you to have insurance that
ensures repairs with Genuine GM Original
Equipment Manufacturer (OEM) parts or
Genuine Manufacturer replacement parts.
Read the lease carefully, as you may be
charged at the end of the lease for poor
quality repairs.
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing seeRoadside
Assistance Program 0408.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle Choose a reputable repair facility that uses
quality replacement parts. See
“Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 068.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new
Genuine GM parts or recycled original GM
parts. Remember, recycled parts will not be
covered by the GM vehicle warranty.
Insurance pays the bill for the repair, but
you must live with the repair. Depending on
your policy limits, your insurance company
may initially value the repair using
aftermarket parts. Discuss this with the
repair professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have the

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
428 Index
Data Collection (cont'd)OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Data Recorders, Event . . . . . . . . . . . . . . . . . . . .415
Daytime Running Lamps (DRL) . . . . . . . . . . . .145
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . . . 200
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Diagnostics Connected Services . . . . . . . . . . . . . . . . . . . . 424
Disabled Vehicle Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Distracted
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . . . 199
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 23
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Drive Belt Routing, Engine . . . . . . . . . . . . . . . 404
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 329
Driver Assistance Systems, Advanced . . . . . . . . . 252
Information Center (DIC) . . . . . . . . . . . 131, 133
Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Mode Control Light . . . . . . . . . . . . . . . . . . . . 128 Driver (cont'd)
Teen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Driving Assistance Systems . . . . . . . . . . . . . . . . . . . . 263
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 199
Characteristics and Towing Tips . . . . . . . . 276
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Hill and Mountain Roads . . . . . . . . . . . . . . 207
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 209
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 202
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 202
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 210
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Dual Automatic Climate Control System . . . . 193
E
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . . . . . . . 272
ElectricParking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Parking Brake Light . . . . . . . . . . . . . . . . . . . . 124
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . 306
System Overload . . . . . . . . . . . . . . . . . . . . . . 335 Electrical System
Engine Compartment Fuse Block . . . . . . . 337
Fuses and Circuit Breakers . . . . . . . . . . . . . 337
Instrument Panel Fuse Block . . . . . . 341, 342
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 318
Air Filter Life System . . . . . . . . . . . . . . . . . . . 317
Check Light (Malfunction Indicator) . . . . 122
Compartment Overview . . . . . . . . . . . . . . . . 313
Coolant Temperature Gauge . . . . . . . . . . . . 118
Coolant Temperature WarningLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 319
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 404
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 316
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . 117
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 129
Overheated Protection Operating Mode . . . . . . . . . . . . . . . . . . . . . 323
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 139

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Index 429
Engine (cont'd)Running While Parked . . . . . . . . . . . . . . . . . 223
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 284
Event Data Recorders . . . . . . . . . . . . . . . . . . . . .415
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Extended Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . .35
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 222
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 63
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Lamp Controls . . . . . . . . . . . . . . . . . . . . . . . . . 143
Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 145
Lighting Battery Saver . . . . . . . . . . . . . . . . . 152
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Filter Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 318
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Flashers, Hazard Warning . . . . . . . . . . . . . . . . 146
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Floor Console
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391 Fluid
Automatic Transmission . . . . . . . . . . . . . . . . 317
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . 323
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Fog Lamp Light Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . 228, 329
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Heated and Ventilated Seats . . . . . . . . . . . . 54
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Economy, Driving for Better . . . . . . . . . . . 199
Filling a Portable Fuel Container . . . . . . . 276
Filling the Tank . . . . . . . . . . . . . . . . . . . . 273, 275
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 272
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Low Fuel Warning Light . . . . . . . . . . . . . . . 129 Fuel (cont'd)
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 272
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 272
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 375
Fuses Engine Compartment Fuse Block . . . . . . . 337
Fuses and Circuit Breakers . . . . . . . . . . . . . 337
Instrument Panel Fuse Block . . . . . . 341, 342
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . 140
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Gauges Engine Coolant Temperature . . . . . . . . . . . . 118
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 117
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Transmission Temperature . . . . . . . . . . . . . . 119
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Warning Lights and Indicators . . . . . . . . . . 111
General Information
Service and Maintenance . . . . . . . . . . . . . . 393
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Index 433
ParkingBrake and P (Park) Mechanism
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Extended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Over Things That Burn . . . . . . . . . . . . . . . . . 222
Parking or Backing Assistance Systems . . . . . . . . . . . . . . . . . . . . 253
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . 121
Compartment Air Filter . . . . . . . . . . . . . . . . 196
Sensing System . . . . . . . . . . . . . . . . . . . . . . . . . 69
Pedestrian Ahead Indicator . . . . . . . . . . . . . . 126
Perchlorate Materials Requirements, California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Phone Apple CarPlay and
Android Auto . . . . . . . . . . . . . . . . . . . . 177, 179
Bluetooth . . . . . . . . . . . . . . . . . . . . . . 170, 171, 174
Pickup Conversion to Chassis Cab . . . . . . . . 308
Port USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Positioning Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Power Assist Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Power (cont'd)
Protection, Battery . . . . . . . . . . . . . . . . . . . . . 152
Retained Accessory (RAP) . . . . . . . . . . . . . . 220
Seat Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 49
Steering Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Pregnancy, Using Seat Belts . . . . . . . . . . . . . . 63
Privacy
Vehicle Data Recording . . . . . . . . . . . . . . . . 415
Problems with Route Guidance . . . . . . . . . . 168
Program Courtesy Transportation . . . . . . . . . . . . . . . 410
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . . 272
Proposition 65 Warning California . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Proposition 65 Warning, California . . . . . . . 376
Publication Ordering Information . . . . . . . . .413
R
Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Radio AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . 159, 161
Frequency Statement . . . . . . . . . . . . . . . . . . 413
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Satellite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Rear
Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Camera Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Locking Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Rearview Mirror Truck Bed Camera . . . . . . . . . . . . . . . . . . . . . . 41
Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 38
Automatic Dimming . . . . . . . . . . . . . . . . . . . . 38
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . . . 49
Recognition Voice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Recommended
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Recommended Fluids and Lubricants . . . . . 398
Records Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 400
Recreational Vehicle Towing . . . . . . . . . . . . . 380
Reimbursement Program, GM
Mobility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Remote Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Key Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Vehicle Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21