
GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
350 Vehicle Care
Tire Pressure
Tires need the correct amount of air
pressure to operate effectively.
{Warning
Neither tire underinflation nor
overinflation is good. Underinflated
tires, or tires that do not have
enough air, can result in:
.Tire overloading and overheating,
which could lead to a blowout
.Premature or irregular wear
.Poor handling
.Reduced fuel economy for
internal combustion engine
vehicles
.Reduced range for electric vehicles
Overinflated tires, or tires that have
too much air, can result in:
.Unusual wear
.Poor handling
.Rough ride
(Continued)
Warning (Continued)
.Needless damage from road
hazards
The Tire and Loading Information label
on the vehicle indicates the original
equipment tires and the correct cold
tire inflation pressures. The
recommended pressure is the minimum
air pressure needed to support the
vehicle's maximum load carrying
capacity.
For additional information regarding
how much weight the vehicle can carry,
and an example of the Tire and Loading
Information label, see Vehicle Load
Limits 0210. How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle with
more weight than it was designed to
carry.
When to Check
Check the pressure of the tires once a
month or more. Do not forget the spare, if the vehicle
has one. See
Full-Size Spare Tire 0375
for additional information.
How to Check
Use a good quality pocket-type gauge
to check tire pressure. Proper tire
inflation cannot be determined by
looking at the tire. Check the tire
inflation pressure when the tires are
cold, meaning the vehicle has not been
driven for at least three hours or no
more than 1.6 km (1 mi).
Remove the valve cap from the tire
valve stem. Press the tire gauge firmly
onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the Tire and Loading
Information label, no further adjustment
is necessary. If the inflation pressure is
low, add air until the recommended
pressure is reached. If the inflation
pressure is high, press on the metal
stem in the center of the tire valve to
release air.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
386 Vehicle Care
.Promptly rinse the bed surface following
a chemical spill to avoid permanent
damage.
.Use a dry rag to remove oil.
Cleaning Exterior Lamps/Lenses,
Emblems, Decals and Stripes
Use only lukewarm or cold water, a soft
cloth, and a car washing soap to clean
exterior lamps, lenses, emblems, decals and
stripes. Follow instructions under "Washing
the Vehicle" previously in this section.
Lamp covers are made of plastic, and some
have a UV protective coating. Do not clean
or wipe them while they are dry.
Do not use any of the following on lamp
covers:
.Abrasive or caustic agents.
.Washer fluids and other cleaning agents
in higher concentrations than suggested
by the manufacturer.
.Solvents, alcohols, fuels, or other harsh
cleaners.
.Ice scrapers or other hard items.
.Aftermarket appearance caps or covers
while the lamps are illuminated, due to
excessive heat generated.
Caution
Failure to clean lamps properly can cause
damage to the lamp cover that would
not be covered by the vehicle warranty.
Caution
Using wax on low gloss black finish
stripes can increase the gloss level and
create a non-uniform finish. Clean low
gloss stripes with soap and water only.
Air Intakes
Clear debris from the air intakes, between
the hood and windshield, when washing the
vehicle.
Shutter System
The vehicle may have a shutter system
designed to help improve fuel economy.
Keep the shutter system clear of debris,
snow and ice. If the check engine light is
activated, please check to see if the shutter
system is clear of debris, snow or ice.
Windshield and Wiper Blades
Clean the outside of the windshield with
glass cleaner.
Clean rubber blades using a lint-free cloth or
paper towel soaked with windshield washer
fluid or a mild detergent. Wash the
windshield thoroughly when cleaning the

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
402 Technical Data
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. SeeRecommended Fluids and Lubricants0398.
If the vehicle has a diesel engine, see the Duramax diesel supplement.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge
amount, see the refrigerant label under the hood. See your dealer for more information.
Engine Cooling System* 14.6 L15.4 qt
Engine Oil with Filter 7.6 L8.0 qt
Fuel Tank
I2500 Series and 3500 Series Standard Box (Except Double Cab Diesel) 136.3 L
36.0 gal
I2500 Series and 3500 Series Standard Box (Double Cab Diesel) 111.3 L
29.4 gal
I2500 Series and 3500 Series Long Box (Except Regular Cab Diesel) 136.3 L
36.0 gal
I2500 Series and 3500 Series Long Box (Regular Cab Diesel) 106.0 L
28.0 gal

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Index 435
Shifting (cont'd)Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Shutdown, Vehicle . . . . . . . . . . . . . . . . . . . . . . . 220
Signals, Turn and Lane-Change . . . . . . . . . . . .147
Snow Plow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Software Updates . . . . . . . . . . . . . . . . . . . . . . . . 159
Special Application Services . . . . . . . . . . . . . . 397
Specifications and Capacities . . . . . . . . . . . . . 402
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . . 21
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . .218
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 Column Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Fluid, Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 105
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . 105
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . 156
Steps Power Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 334
Storage Center Console . . . . . . . . . . . . . . . . . . . . . . . . 101
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Cupholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Floor Console . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Storage (cont'd)
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Underseat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Surround Vision System . . . . . . . . . . . . . . . . . . . . . . . . . 254
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
System Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Brake Pad Life . . . . . . . . . . . . . . . . . . . . . . . . . 325
Engine Air Filter Life . . . . . . . . . . . . . . . . . . . . 317
Global Positioning . . . . . . . . . . . . . . . . . . . . . 167
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Noise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 329
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TaillampsBulb Replacement . . . . . . . . . . . . . . . . . . . . . . 334
Task Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185
Text Telephone (TTY) Users . . . . . . . . . . . . . . 407 Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .33
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
All-Terrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 360
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Full-Size Spare . . . . . . . . . . . . . . . . . . . . . . . . . 375
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 364
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . 129
Pressure Monitor Operation . . . . . . . . . . . 351
Pressure Monitor System . . . . . . . . . . . . . . 351
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 346
Terminology and Definitions . . . . . . . . . . . 348
Uniform Tire Quality Grading . . . . . . . . . . 361
Wheel Alignment and Tire Balance . . . . 362
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 362
When It Is Time for New Tires . . . . . . . . . 359
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271