flat tire GMC YUKON DENALI 2010 Owner's Guide

Changing a Flat Tire
If your vehicle is a Two-mode Hybrid, see the
Two-mode Hybrid manual for more information.
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on the hazard
warning flashers. SeeHazard Warning Flashers
on
page 4‑3.
{WARNING:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you or
other people. You and they could be badly injured
or even killed. Find a level place to change your
tire. To help prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission shift lever in P (Park), or shift a manual transmission to
1 (First) or R (Reverse).
(Continued)
WARNING: (Continued)
3. Turn off the engine and do not restart whilethe vehicle is raised.
4. Do not allow passengers to remain in the vehicle.
To be even more certain the vehicle will not move,
you should put blocks at the front and rear of the
tire farthest away from the one being changed.
That would be the tire on the other side, at the
opposite end of the vehicle.
6-80

When the vehicle has a flat tire (B), use the following
example as a guide to assist you in the placement of
wheel blocks (A).
A. Wheel Block
B. Flat Tire
The following information explains how to use the jack
and change a tire.
Removing the Spare Tire and Tools
The equipment you will need to change a flat tire is
stored under the storage tray, which is located on the
driver's side trim panel (over the rear wheelhouse).
Regular Wheelbase shown,
Extended Wheelbase similar.
1. Remove the tray to access the tools by pulling up on the finger depression under the jack symbol.
6-81

8. Tilt the tire toward the vehicle with some slack inthe cable to access the tire/wheel retainer (G).
Separate the retainer from the guide pin by sliding
the retainer up the pin while pressing down on the
latch.
Once the retainer is separated from the guide pin,
tilt the retainer and pull it through the center of the
wheel along with the cable and latch.
9. Put the spare tire near the flat tire.
6-85

Removing the Flat Tire and Installing
the Spare Tire
1. Do a safety check before proceeding.See Changing a Flat Tire on page 6‑80.
2. If the wheel has a center cap that covers the wheel
nuts, place the chiseled end of the wheel wrench in
the slot on the wheel and gently pry the cap out.
3. Use the wheel wrench to loosen all the wheel nuts.Turn the wheel wrench counterclockwise to loosen
the wheel nuts. Do not remove the wheel nuts yet.
6-86

Front Position
Front Tire Flat: If the flat tire is on a front tire
of the vehicle, you will need to use the jack
handle (B) and only one jack handle extension (C).
Attach the wheel wrench (D) to the jack handle
extension (C). Attach the jack handle (B) to the
jack (A). Position the jack on the frame behind the
flat tire where the frame sections overlap (E).
Turn the wheel wrench (D) clockwise to raise the
vehicle. Raise the vehicle far enough off the
ground so there is enough room for the spare tire
to clear the ground.Rear Position
Rear Tire Flat: If the flat tire is on a rear tire of the
vehicle, you will need to use the jack handle (B)
and both jack handle extensions (C). Attach
the wheel wrench (D) to the jack handle
extensions (C). Attach the jack handle (B) to the
jack (A). Use the jacking pad (E) provided on the
rear axle. Turn the wheel wrench (D) clockwise to
raise the vehicle. Raise the vehicle far enough off
the ground so there is enough room for the spare
tire to clear the ground.
6-88

5. Remove all of thewheel nuts.
6. 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, use a cloth or a
paper towel to do this; but be sure to use a (Continued)
WARNING: (Continued)
scraper or wire brush later, if needed, to get all
the rust or dirt off. SeeChanging a Flat Tire
on
page 6‑80
.
7. Remove any rust or dirt from the wheel bolts,
mounting surfaces and
spare wheel.
{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.
6-89

Secondary Latch System
Your vehicle has an underbody-mounted tire hoist
assembly equipped with a secondary latch system.
It is designed to stop the spare tire from suddenly falling
off your vehicle. For the secondary latch to work, the
spare must be installed with the valve stem pointing
down. SeeStoring a Flat or Spare Tire and Tools
on
page 6‑94.
{WARNING:
Before beginning this procedure read all the
instructions. Failure to read and follow the
instructions could damage the hoist assembly and
you and others could get hurt. Read and follow
the instructions listed next. To release the spare tire from the secondary latch:
1. Check under the
vehicle to see if the
cable end is visible.
If the cable is not
visible proceed to
Step 6.
2. If it is visible, first try to tighten the cable by turning the wheel wrench clockwise until you hear two
clicks or feel it skip twice. You cannot overtighten
the cable.
3. Loosen the cable by turning the wrench counterclockwise three or four turns.
4. Repeat this procedure at least two times. If the spare tire lowers to the ground, continue with
Step 5 of Removing the Spare Tire and Tools
on
page 6‑81.
6-91

9. Position the center lift point of the jack under thecenter of the spare tire.
10. Turn the wrench clockwise to raise the jack until it lifts the end fitting.
11. Continue raising the jack until the spare tire stops moving upward and is held firmly in place.
The secondary latch has released and the spare
tire is balancing on the jack.
12. Lower the jack by turning the wheel wrench counterclockwise. Keep lowering the jack until the
spare tire slides off the jack or is hanging by the
cable.
{WARNING:
Someone standing too close during the procedure
could be injured by the jack. If the spare tire does
not slide off the jack completely, make sure no
one is behind you or on either side of you as you
pull the jack out from under the spare.
13. Disconnect the jack handle from the jack and carefully remove the jack. Use one hand to push
against the spare while firmly pulling the jack out
from under the spare tire with the other hand.
If the spare tire is hanging from the cable, insert
the hoist end of extension, and wheel wrench into
the hoist shaft hole in the bumper and turn the
wheel wrench counterclockwise to lower the spare
the rest of the way.
14. Turn the wheel wrench in the hoist shaft hole in the bumper clockwise to raise the cable back up if the
cable is hanging under the vehicle.
Have the hoist assembly inspected as soon as you can.
You will not be able to store a spare or flat tire using the
hoist assembly until it has been inspected and/or
replaced.
To continue changing the flat tire, see Removing the
Flat Tire and Installing the Spare Tire on page 6‑86.
6-93

Storing a Flat or Spare Tire and
Tools
{WARNING:
Storing 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.
Notice: 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.
A. Hoist Assembly
B. Hoist Shaft
C. Hoist Shaft Access Cover/Hole
D. Jack Handle Extensions
E. Wheel Wrench F. Hoist Cable G. Tire/Wheel Retainer
H. Spare Tire/Flat Tire (Valve Stem
Pointed Down)
I. Hoist Shaft Access Hole
J. Hoist End of Extension Tool
K. Spare Tire Lock
6-94

Spare Tire
Your vehicle, when new, had a fully-inflated spare tire.
A spare tire may lose air over time, so check its inflation
pressure regularly. SeeInflation - Tire Pressure
on
page 6‑64and Loading the Vehicleon page 5‑31for
information regarding proper tire inflation and loading
your vehicle. For instruction on how to remove, install or
store a spare tire, see Removing the Flat Tire and
Installing the Spare Tire
on page 6‑86and Storing a
Flat or Spare Tire and Tools on page 6‑94.
After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare is
correctly inflated. The spare tire is made to perform well
at speeds up to 70 mph (112 km/h) at the recommended
inflation pressure, so you can finish your trip.
Have the damaged or flat road tire repaired or replaced
as soon as you can and installed back onto your
vehicle. This way, a spare tire will be available in case
you need it again. Do not mix tires and wheels of
different sizes, because they will not fit. Keep your
spare tire and its wheel together.
Appearance Care
Interior Cleaning
The vehicle's interior will continue to look its best if it is
cleaned often. Although not always visible, dust and
dirt can accumulate on the upholstery. Dirt can damage
carpet, fabric, leather, and plastic surfaces. Regular
vacuuming is recommended to remove particles from
the upholstery. It is important to keep the upholstery
from becoming and remaining heavily soiled.
Soils should be removed as quickly as possible.
The vehicle's interior may experience extremes of
heat that could cause stains to set rapidly.
Lighter colored interiors may require more frequent
cleaning. Use care because newspapers and garments
that transfer color to home furnishings may also transfer
color to the vehicle's interior.
6-98