2015 GMC SIERRA DENALI spare wheel

Black plate (81,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-815. If the flat tire is on the rear, for
1500 models position the jack
under the rear axle about 5 cm
(2 in) inboard of the shock
absorber bracket.
Rear Position – All Other Models For all other models, position the
jack under the rear axle between
the spring anchor and the shock
absorber bracket.
If a snow plow has been added
to the front of the vehicle, lower
the snow plow fully before
raising the vehicle.
Make sure that the jack head is
positioned so that the rear axle
is resting securely between the
grooves that are on the
jack head.
{ Warning
Getting under a vehicle when it is
lifted on a jack is dangerous.
If the vehicle slips off the jack,
you could be badly injured or
killed. Never get under a vehicle
when it is supported only by
a jack. { WarningRaising the vehicle with the jack
improperly positioned can
damage the vehicle and even
make the vehicle fall. To help
avoid personal injury and vehicle
damage, be sure to fit the jack lift
head into the proper location
before raising the vehicle.
6. Turn the wheel wrench
clockwise to raise the vehicle.
Raise the vehicle far enough off
the ground so there is enough
room for the spare tire to fit
under the wheel well.

Black plate (82,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
10-82 Vehicle Care
7. Remove all the wheel nuts and
take off the flat tire.
{ Warning
Rust or dirt on a wheel, or on the
parts to which it is fastened, can
make wheel nuts become loose
after time. The wheel could come
off and cause an accident. When
changing a wheel, remove any
rust or dirt from places where the
wheel attaches to the vehicle. In
an emergency, a cloth or a paper
(Continued) Warning (Continued) towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.
8. Remove any rust or dirt from the
wheel bolts, mounting surfaces,
and spare wheel.
9. Install the spare tire. { WarningNever use oil or grease on bolts
or nuts because the nuts might
come loose. The vehicle's wheel
could fall off, causing a crash.
10. Put the wheel nuts back on
with the rounded end of the
nuts toward the wheel.
11. Tighten each wheel nut by
hand. Then use the wheel
wrench to tighten the nuts until
the wheel is held against
the hub.
12. Turn the wheel wrench
counterclockwise to lower the
vehicle. Lower the jack
completely.
{ Warning
If wheel studs are damaged, they
can break. If all the studs on a
wheel broke, the wheel could
(Continued)

Black plate (84,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
10-84 Vehicle Care Repeat this service whenever you
have a tire removed or serviced.
See Capacities and Specifications
on page 12-2 .
When reinstalling the regular wheel
and tire, also reinstall either the
center cap, or bolt-on hub cap,
depending on what the vehicle is
equipped with. For center caps,
place the cap on the wheel and tap
it into place until it seats flush with
the wheel. The cap only goes on
one way. Be sure to line up the tab
on the center cap with the
indentation on the wheel. For
bolt-on hub caps, align the plastic
nut caps with the wheel nuts and
then tighten by hand. Then use the
wheel wrench to tighten. Storing a Flat or Spare Tire
and Tools
{ WarningStoring a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.
{ Caution
Storing an aluminum wheel with a
flat tire under your vehicle for an
extended period of time or with
the valve stem pointing up can
damage the wheel. Always stow
the wheel with the valve stem
pointing down and have the
wheel/tire repaired as soon as
possible. Store the tire under the rear of the
vehicle in the spare tire carrier.
1. Spare Tire (Valve Stem
Pointed Down)
2. Tire/Wheel Retainer
3. Hoist Cable
4. Hoist Assembly
5. Hoist Shaft
6. Jack Handle Extensions
7. Wheel Wrench
8. Spare Tire Lock (If Equipped)
9. Hoist Shaft Access Hole
10. Hoist End of Extension Tool

Black plate (85,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-851. Put the tire on the ground at the
rear of the vehicle with the valve
stem pointed down, and to
the rear.
2. Pull the cable and spring
through the center of the wheel.
Tilt the wheel retainer plate
down and through the center
wheel.
Make sure the retainer is fully
seated across the underside of
the wheel.
3. Attach the wheel wrench (7) and
extensions (6) together, as
shown. 4. Insert the hoist end (10) through
the hole (9) in the rear bumper
and onto the hoist shaft.
Do not use the chiseled end of
the wheel wrench.
5. Raise the tire part way upward.
Make sure the retainer is seated
in the wheel opening.
6. Raise the tire fully against the
underside of the vehicle by
turning the wheel wrench
clockwise until you hear two
clicks or feel it skip twice. You
cannot overtighten the cable. 7. Make sure the tire is stored
securely. Push, pull, and then try
to turn the tire. If the tire moves,
use the wheel wrench to tighten
the cable.
8. Reinstall the spare tire lock,
if the vehicle has one.

Black plate (86,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
10-86 Vehicle Care To store the jack and jack tools:
1. Wing Nut Retaining Wheel
Blocks
2. Wheel Blocks
3. Wing Nut Retaining Tool Kit
4. Wheel Wrench and
Extensions
5. Tool Bag
6. Jack Mounting Bracket
7. Jack
8. Bolt Retaining Wheel Blocks
1. Put the tools (4) in the tool
bag (5) and place them in the
retaining bracket (3). 2. Tighten down the wing nut (3).
3. Assemble the wheel blocks (2)
and jack (7) together with the
wing nut (1) and retaining
bolt (8).
4. Position the jack (7) in the
mounting bracket (6). Position
the holes in the base of the
jack (7) onto the pin in the
mounting bracket (6).
5. Return them to their original
location in the vehicle. See
“ Removing the Spare Tire and
Tools. ”
Full-Size Spare Tire If this vehicle came with a full-size
spare tire, it was fully inflated when
new, however, it can lose air over
time. Check the inflation pressure
regularly. See Tire Pressure on
page 10-59 and Vehicle Load Limits
on page 9-15 . For instructions on
how to remove, install, or store a
spare tire, see Tire Changing on
page 10-76 . If equipped with a temporary use
full-size spare tire, it is indicated on
the tire sidewall. See Tire Sidewall
Labeling on page 10-52 . This spare
tire should not be driven on over
112 km/h (70 mph), or 88 km/h
(55 mph) when pulling a trailer, at
the proper inflation pressure.
Repair and replace the road tire as
soon as it is convenient, and stow
the spare tire for future use.
{ CautionIf the vehicle has four-wheel drive
and a different size spare tire is
installed, do not drive in
four-wheel drive until the flat tire
is repaired and/or replaced. The
vehicle could be damaged and
the repairs would not be covered
by the warranty. Never use
four-wheel drive when a different
size spare tire is installed on the
vehicle.

Black plate (87,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-87The vehicle may have a different
size spare tire than the road tires
originally installed on the vehicle.
This spare tire was developed for
use on this vehicle, so it is all right
to drive on it. If the vehicle has
four-wheel drive and a different size
spare tire is installed, drive only in
two-wheel drive.
After installing the spare tire on the
vehicle, stop as soon as possible
and check that the spare tire is
correctly inflated.
Have the damaged or flat road tire
repaired or replaced and installed
back onto the vehicle as soon as
possible so the spare tire will be
available in case it is needed again.
Do not mix tires and wheels of
different sizes, because they will not
fit. Keep your spare tire and its
wheel together. If the vehicle has a
spare tire that does not match the
original road tires and wheels in size
and type, do not include the spare in
the tire rotation. Jump Starting For more information about the
vehicle battery, see Battery on
page 10-29 .
If the vehicle's battery (or batteries)
has run down, you may want to use
another vehicle and some jumper
cables to start your vehicle. Be sure
to use the following steps to do it
safely.
{ WarningBatteries can hurt you. They can
be dangerous because: .
They contain acid that can
burn you. .
They contain gas that can
explode or ignite. .
They contain enough
electricity to burn you.
If you do not follow these steps
exactly, some or all of these
things can hurt you. { CautionIgnoring these steps could result
in costly damage to the vehicle
that would not be covered by the
vehicle warranty. Trying to start
the vehicle by pushing or pulling it
will not work, and it could damage
the vehicle.
1. Check the other vehicle. It must
have a 12-volt battery with a
negative ground system.
{ Caution
If the other vehicle does not have
a 12-volt system with a negative
ground, both vehicles can be
damaged. Only use a vehicle that
has a 12-volt system with a
negative ground for jump starting.
2. If you have a vehicle with a
diesel engine with two batteries,
you should know before you

Black plate (5,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
INDEX i-5FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-65
Floor Console Storage . . . . . . . . . . 4-3
Floor Mats . . . . . . . . . . . . . . . . . . .10-105
Fluid
Automatic
Transmission . . . . . . . 10-12, 10-15
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-27
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 9-40
Power Steering . . . . . . . . . . . . . 10-24
Washer . . . . . . . . . . . . . . . . . . . . . 10-25
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 6-5
Bulb Replacement . . . . . . . . . . 10-37
Folding Mirrors . . . . . . . . . . . . . . . . 2-16
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . 9-59
Four-Wheel Drive . . . . . . . 9-40, 10-29
Four-Wheel-Drive Light . . . . . . . . 5-22
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . 13-12
Front Axle . . . . . . . . . . . . . . . . . . . . 10-30 Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Front Seats
Heated and Cooled . . . . . . . . . . . . 3-7
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-63
Additives . . . . . . . . . . . . . . . . . . . . . 9-64
Economy Driving . . . . . . . . . . . . . 1-21
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-67
Filling the Tank . . . . . . . . . . . . . . . 9-66
Foreign Countries . . . . . . . . . . . . 9-64
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Low Fuel Warning Light . . . . . . . 5-25
Management, Active . . . . . . . . . . 9-32
Requirements, California . . . . . 9-64
System Messages . . . . . . . . . . . . 5-35
Full-Size Spare Tire . . . . . . . . . . 10-86
Fuses . . . . . . . . . . . . . . . . . . . . . . . . 10-41
Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-41
Instrument Panel
Fuse Block . . . . . . . . . 10-45, 10-48 G Garage Door Opener . . . . . . . . . . 5-49
Programming . . . . . . . . . . . . . . . . . 5-49
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 5-13
Engine Oil Pressure . . . . . . . . . . 5-12
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . . 5-11
Speedometer . . . . . . . . . . . . . . . . . 5-11
Tachometer . . . . . . . . . . . . . . . . . . . 5-11
Transmission Temperature . . . . 5-14
Trip Odometer . . . . . . . . . . . . . . . . 5-11
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-15
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . 5-8
General Information
Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-68
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glass Replacement . . . . . . . . . . . 10-35
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . 13-5

Black plate (12,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
i-12 INDEX Tires (cont'd)
Changing . . . . . . . . . . . . . . . . . . . 10-76
Designations . . . . . . . . . . . . . . . 10-54
Different Size . . . . . . . . . . . . . . . 10-70
Dual Rotation . . . . . . . . . . . . . . . 10-67
Full-Size Spare . . . . . . . . . . . . . 10-86
If a Tire Goes Flat . . . . . . . . . . 10-74
Inflation Monitor System . . . . 10-62
Inspection . . . . . . . . . . . . . . . . . . 10-65
Low Profile . . . . . . . . . . . . . . . . . 10-51
Messages . . . . . . . . . . . . . . . . . . . . 5-38
Pressure . . . . . . . . . . . . . . . . . . . . 10-60
Pressure Light . . . . . . . . . . . . . . . . 5-25
Pressure Monitor System . . . 10-61
Rotation . . . . . . . . . . . . . . . . . . . . 10-65
Sidewall Labeling . . . . . . . . . . . 10-52
Terminology and
Definitions . . . . . . . . . . . . . . . . . 10-56
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-71
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-72
Wheel Replacement . . . . . . . . 10-73
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-68
Winter . . . . . . . . . . . . . . . . . . . . . . 10-51
Tow/Haul Mode . . . . . . . . . . . . . . . . 9-39 Tow/Haul Mode Light . . . . . . . . . . 5-22
Towing
Driving Characteristics . . . . . . . . 9-68
Equipment . . . . . . . . . . . . . . . . . . . . 9-78
General Information . . . . . . . . . . 9-68
Recreational Vehicle . . . . . . . . 10-91
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 9-71
Trailer Sway Control (TSC) . . . 9-87
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-91
Traction
Control System (TCS)/
StabiliTrak ®
Light . . . . . . . . . . . . 5-24
Off Light . . . . . . . . . . . . . . . . . . . . . . 5-23
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . 9-49
Trailer
Sway Control (TSC) . . . . . . . . . . 9-87
Tow Mirrors . . . . . . . . . . . . . . . . . . . 2-14
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-71
Transfer Case . . . . . . . . . . . . . . . . . 9-40
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 9-33
Fluid, Automatic . . . . . 10-12, 10-15
Messages . . . . . . . . . . . . . . . . . . . . 5-39
Temperature Gauge . . . . . . . . . . 5-14 Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . 13-8
Trip Odometer . . . . . . . . . . . . . . . . . 5-11
Truck-Camper Loading
Information . . . . . . . . . . . . . . . . . . . 9-21
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Turn Signal
Bulb Replacement . . . . . . . . . . 10-37
U Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 10-71
Universal Remote System . . . . . 5-49
Operation . . . . . . . . . . . . . . . . . . . . . 5-52
Programming . . . . . . . . . . . . . . . . . 5-49
Using This Manual . . . . . . . . . . . . . . . . iii
V Vehicle
Alarm System . . . . . . . . . . . . . . . . 2-11
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Identification
Number (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-15