2015 GMC SIERRA clock

Black plate (79,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-79
2. If the vehicle has wheel nutcaps, loosen them by turning the
wheel wrench counterclockwise.
If the vehicle has a center cap
with wheel nut caps, the wheel
nut caps are designed to stay
with the center cap after they are
loosened. Remove the entire
center cap.
If the wheel has a smooth center
cap, place the chisel end of the
wheel wrench in the slot on the
wheel, and gently pry it out.
3. Use the wheel wrench and turn it
counterclockwise to loosen the
wheel nuts. Do not remove the
wheel nuts yet.

Black plate (81,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-81
5. If the flat tire is on the rear, for1500 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.
{Warning
Raising 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 andtake 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 thewheel bolts, mounting surfaces,
and spare wheel.
9. Install the spare tire.
{Warning
Never 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 (83,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-83
Warning (Continued)
come off and cause a crash.
If any stud is damaged because
of a loose-running wheel, it could
be that all of the studs are
damaged. To be sure, replace all
studs on the wheel. If the stud
holes in a wheel have become
larger, the wheel could collapse in
operation. Replace any wheel if
its stud holes have become larger
or distorted in any way. Inspect
hubs and hub‐piloted wheels for
damage. Because of loose
running wheels, piloting pad
damage may occur and require
replacement of the entire hub, for
proper centering of the wheels.
When replacing studs, hubs,
wheel nuts or wheels, be sure to
use GM original equipment parts.
{Warning
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
come off. The wheel nuts should
be tightened with a torque wrench
to the proper torque specification
after replacing. Follow the torque
specification supplied by the
aftermarket manufacturer when
using accessory locking wheel
nuts. SeeCapacities and
Specifications on page 12-2 for
original equipment wheel nut
torque specifications.
{Caution
Improperly tightened wheel nuts
can lead to brake pulsation and
rotor damage. To avoid expensive
brake repairs, evenly tighten the
wheel nuts in the proper
(Continued)
Caution (Continued)
sequence and to the proper
torque specification. See
Capacities and Specifications on
page 12-2for the wheel nut
torque specification.
13. Tighten the nuts firmly in a crisscross sequence, as
shown, by turning the wheel
wrench clockwise.
For vehicles with dual wheels, have
a technician check the wheel nut
tightness of all wheels with a torque
wrench after the first 160, 1 600 and
10 000 km (100, 1,000 and 6,000 mi).

Black plate (85,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
Vehicle Care 10-85
1. Put the tire on the ground at therear 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) throughthe 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 (3,1)GMC 2015i Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-8431500) - 2015 - crc - 6/20/14
INDEX i-3
Child RestraintsInfants and Young
Children . . . . . . . . . . . . . . . . . . . . . 3-32
Lower Anchors and Tethers for Children . . . . . . . . . 3-38
Older Children . . . . . . . . . . . . . . . . 3-30
Securing . . . . . . . . . . . . . . . . 3-45, 3-47
Systems . . . . . . . . . . . . . . . . . . . . . . 3-35
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-96
Interior Care . . . . . . . . . . . . . . . 10-101
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . . 8-1
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Cluster, Instrument . . . . . . . . . . . . . 5-9
Collision Damage Repair . . . . . . 13-9
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-4 Messages . . . . . . . . . . . . . . . . . . . . 5-32
Connections
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-4
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-51 Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 9-49 Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 5-22
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convex Mirrors . . . . . . . . . . . . . . . . 2-14
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-18
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 5-13
Engine Temperature Warning Light . . . . . . . . . . . . . . . 5-24
Cooling System . . . . . . . . . . . . . . . 10-17
Engine Messages . . . . . . . . . . . . 5-33
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . 13-8
Cruise Control . . . . . . . . . . . . . . . . . 9-52 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-4
Customer Information Service PublicationsOrdering Information . . . . . . .13-11
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . . 13-9
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-14
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-3
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . . 2-9
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-7
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 5-27
Ajar Messages . . . . . . . . . . . . . . . 5-33
Delayed Locking . . . . . . . . . . . . . . . 2-9
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Power Locks . . . . . . . . . . . . . . . . . . . 2-9
Drive Belt Routing, Engine . . . . . 12-4
Driver Assistance Systems . . . . 9-55
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-27
Driving Assistance Systems . . . . . . . . . . 9-59
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-68
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3