lock GMC YUKON XL 2005 Owners Manual

To replace a front turn signal, sidemarker or DRL bulb,
do the following:
1. Remove the headlamp assembly as described
previously. SeeHeadlamps on page 5-50for
more information.
2. Press the retainer clip (B), located behind the turn
signal housing, towards the outside of the vehicle.
3. Pull the turn signal housing out of the vehicle.4. Press the locking release lever, turn the bulb socket
counterclockwise and remove it from the turn signal
housing.
5. Remove the old bulb from the bulb socket.
6. Put a new bulb into the bulb socket. Use care not
to touch the bulb with your ngers or hands.
7. Put the bulb socket back into the turn signal
housing and turn it clockwise until it locks.
8. Put the turn signal housing back into the vehicle
placing the hook and posts on the inner side into
the alignment holes rst, then the outer side into the
retainer bracket until you hear a click.
9. Put the headlamp assembly back into the vehicle.
5-52

Taillamps
A. Turn Signal Lamp
B. Back-up Lamp
C. StoplampTo replace a taillamp bulb, do the following:
1. Remove the two
screws from the
taillamp assembly.
2. Remove the taillamp assembly.
3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
housing.
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4. Pull the old bulb
straight out from the
socket.
5. Press a new bulb into the socket, insert the socket
into the taillamp housing and turn the socket
clockwise into the taillamp housing until it clicks.
6. Reinstall the taillamp assembly.Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3157
Daytime Running Lamps (DRL) 4114K
Front Marker Lamp 194
Front Parking and Turn
Signal Lamp3157K or 3157
Headlamps
High-Beam 9005
Low-Beam9005 LL
(Long Life) or
9005
Rear Marker Lamp, Taillamp and
Stoplamp3157
Rear Turn Signal Lamp 3157
For replacement bulbs not listed here, contact your
dealer.
5-54

A Tire and Loading Information label is attached to the
vehicle’s center pillar (B-pillar), below the driver’s door
lock post (striker). This label lists your vehicle’s original
equipment tires and their recommended cold tire ination
pressures. The recommended cold tire ination pressure,
shown on the label, is the minimum amount of air
pressure needed to support your vehicle’s maximum load
carrying capacity.
For additional information regarding how much weight
your vehicle can carry, and an example of the tire
and loading information label, seeLoading Your Vehicle
on page 4-44.
When to Check
Check your tires once a month or more. Do not forget
to check the spare tire. For additional information
regarding the spare tire, seeSpare Tire on page 5-94.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are properly inated
simply by looking at them. Radial tires may look properly
inated even when they’re underinated. Check the tire’s
ination pressure when the tires are cold. Cold means
your vehicle has been sitting for at least three hours or
driven no more than 1 mile (1.6 km).Remove the valve cap from the tire valve stem. Press
the tire gage rmly onto the valve to get a pressure
measurement. If the cold tire ination pressure matches
the recommended pressure on the Tire and Loading
Information label, no further adjustment is necessary. If
the ination pressure is low, add air until you reach
the recommended amount.
If you overll the tire, release air by pushing on the
metal stem in the center of the tire valve. Recheck the
tire pressure with the tire gage.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and moisture.
Tire Pressure Monitor System
The Tire Pressure Monitor (TPM) system uses radio
and sensor technology to check tire pressure levels. If
your vehicle has this feature, sensors are mounted
on each tire and wheel assembly, except the spare tire.
The TPM sensors transmit tire pressure readings to
a receiver located in the vehicle.
When a low tire pressure condition is detected, the TPM
system will display the CHECK TIRE PRESSURE
warning message on the Driver Information Center (DIC);
and at the same time illuminate the low tire pressure
warning symbol. For additional information and details
about the DIC operation and displays, seeDIC Operation
and Displays on page 3-47andDIC Warnings and
Messages on page 3-50.
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{CAUTION:
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 rmly.
2. Put the shift lever in PARK (P).
3. Turn off the engine and do not restart
while the 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.When you have a at tire, use the following example as a
guide to assist you in the placement of wheel blocks.
The following information will tell you next how to use
the jack and change a tire.
5-75

Removing the Spare Tire and Tools
A. Retaining Bracket
and Wing Nut
B. Tool Kit and
Jack Tools
C. JackD. Wing Nut Holding
Tire Blocks
E. Wheel BlocksA. Knob
B. Removable Tray
C. Retaining Hook
D. Retaining Bracket
and Wing Nut
E. Tool Kit and
Jack ToolsF. Mounting Bracket
G. Wing Nut Holding
Tire Blocks
H. Wheel Blocks
I. Jack Yukon Denali Rear Access PanelYukon XL Denali
5-76

For Yukon Denali, the equipment is located behind the
left trim panel in the rear of the vehicle. Unlatch the
release lever to open the trim panel door. Skip the rst
step and follow the last three.
For Yukon XL Denali, the equipment you’ll need is
under the storage tray in the left trim panel.
1. Remove the tray to access the tools.
2. Remove the wing nut used to retain the tool kit by
turning it counterclockwise.
3. Release the jack from its holder by turning the knob
on the jack counterclockwise to lower the jack head.
4. Remove the wheel blocks and the wheel block
retainer by turning the wing nut counterclockwise.
You’ll use the jack handle extensions and the wheel
wrench to remove the underbody-mounted spare tire.
A. Spare Tire
(Valve Stem
Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire Retainer
E. Hoist Shaft
F. Hoist End of
Extension ToolG. Hoist Shaft
Access Hole
H. Wheel Wrench
I. Jack Handle
Extensions
J. Hoist Lock
(If Equipped)
1. Open the spare tire lock cover on the bumper and
use the ignition key to remove the lock if your
vehicle is equipped with a hoist lock (J).
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2. Assemble the wheel wrench (H) and the two jack
handle extensions (I) as shown.3. Insert the hoist end
(open end) (F) of the
extension through
the hole (G) in the rear
bumper.
Be sure the hoist end of the extension connects to the
hoist shaft (E). The ribbed square end of the extension
is used to lower the spare tire.
4. Turn the wheel wrench (H) counterclockwise to
lower the spare tire to the ground. Continue to
turn the wheel wrench until the spare tire can be
pulled out from under the vehicle.
If the spare tire does not lower to the ground, the
secondary latch is engaged causing the tire
not to lower. SeeSecondary Latch System on
page 5-86.
5-78

Removing the Flat Tire and
Installing the Spare Tire
Use the following pictures and instructions to remove
the at tire and raise the vehicle.
The tools you’ll be using include the jack (A), the wheel
blocks (B), the jack handle (C), the jack handle
extensions (D), and the wheel wrench (E).1. Remove the center cap by placing the chisel end of
the wheel wrench in the slot on the wheel and
gently pry the cap out.
5-80

2. 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.A. Front Position
B. Rear Position
These locations are the general area of jack placement.
See text and art following for the exact jack placement.Jack Positions (Overall View)
5-81