clock GMC YUKON XL 2007 Owner's Manual

{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant and
the proper coolant mixture.
{CAUTION:
You can be burned if you spill coolant on
hot engine parts. Coolant contains
ethylene glycol and it will burn if the
engine parts are hot enough. Do not spill
coolant on a hot engine.
1. You can remove the
coolant surge tank
pressure cap
when the cooling
system, including
the coolant
surge tank pressure
cap and upper
radiator hose, is no
longer hot.
Turn the pressure cap slowly counterclockwise
about one full turn. If you hear a hiss, wait
for that to stop. A hiss means there is
still some pressure left.
458

7. Locate the vertical headlamp aiming screws,
which are under the hood near each headlamp
assembly.
The adjustment screw can be turned with a
E8 Torx
®socket.
8. Turn the vertical aiming screw until the
headlamp beam is aimed to the horizontal
tape line. Turn it clockwise or
counterclockwise to raise or lower the angle
of the beam.9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal
tape line. The lamp on the left (A) shows
the correct headlamp aim. The lamp on the
right (B) shows the incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite
headlamp.
477

2. Remove the
two screws from the
taillamp assembly.
3. Pull the taillamp assembly rearward until you
disengage the inner pins on the taillamp
assembly from the vehicle.
4. Press the release tab, if bulb socket has one,
and turn the bulb socket counterclockwise to
remove it from the taillamp assembly.5. Pull the old bulb straight out from the bulb
socket.
6. Press a new bulb into the bulb socket and
insert it into the taillamp assembly. Turn the
bulb socket clockwise into the taillamp
assembly until it clicks.
7. Reinstall the taillamp assembly. When
reinstalling, make sure to line up the pins on
the taillamp assembly with the vehicle.
If you do not do this, you will not be able
correctly install the taillamp assembly.
479

License Plate Lamp
1. Remove the two screws holding each of the
license plate lamps to the molding that is part
of the liftgate.
2. Twist and pull the license plate lamp forward
through the molding opening.3. Turn the bulb socket counterclockwise and
pull the bulb straight out of the socket.
4. Install the new bulb.
5. Reverse steps1–3toreinstall the license
plate lamp.
480

2. Remove the wing nut (B) used to retain the
tool bag by turning it counterclockwise.
3. Turn the knob (A) on the jack
counterclockwise to release the jack and
wheel blocks from the bracket.
4. Remove the wheel blocks and the wheel
block retainer by turning the wing nut (C)
counterclockwise.The tools you will be using include the following:
A. Jack
B. Wheel Blocks
C. Jack HandleD. Jack Handle
Extensions
E. Wheel Wrench
510

To access the spare tire, refer to the following
graphics and instructions:
A. Hoist Assembly
B. Hoist Shaft
C. Hoist Shaft Access
Cover/Hole
D. Jack Handle
Extensions
E. Wheel Wrench
F. Hoist CableG. Tire Retainer
H. Spare Tire (Valve
Stem Pointed Down)
I. Hoist Shaft
Access Hole
J. Hoist End of
Extension Tool
K. Spare Tire Lock1. Open the hoist shaft access door (C) on the
bumper to access the spare tire lock (K).
2. Insert the ignition key, turn it clockwise and
then pull it to remove the spare tire lock.
3. Assemble the two jack handle extensions (D)
and wheel wrench (E) as shown.
4. Insert the open end
of the extension (J)
through the hole in
the rear bumper (I)
(hoist shaft
access hole).
Be sure the hoist end (J) of the extension (D)
connects to the hoist shaft (B). The ribbed
square end of the extension is used to lower
the spare tire.
511

5. Turn the wheel wrench (E) counterclockwise
to lower the spare tire (H) 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 519for more information.
6. Use the wheel
wrench hook that
allows you to
pull the hoist cable
towards you, to
assist in reaching
the spare tire.7. Tilt the tire
retainer (G) at the
end of the cable
when the tire
has been lowered,
so it can be
pulled up through
the wheel opening.
8. Put the spare tire near the at tire.
512

Removing the Flat Tire and
Installing the Spare Tire
Use the following pictures and instructions to
remove the at tire and raise the vehicle.
1. Remove the center cap, if your vehicle has
one, by placing the chisel end of the wheel
wrench in the slot on the wheel and gently pry
the cap out.
If the wheel has bolt-on wheel covers, loosen
the plastic nut caps by turning the wheel
wrench counterclockwise. If needed, nish
loosening them by hand.The nut caps will not come off. Using the at
end of the wheel wrench, pry along the edge of
the cover until it comes off.
If your vehicle has only wheel nut caps, loosen
the plastic nut caps with the wheel wrench
in a counterclockwise direction. If needed,
nish loosening them by hand.
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.
513

Front Tire Flat:If the at 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 at 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.
Front Position
Rear Position – 1500 Models
515

Rear Tire Flat:If the at 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 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.4. Remove all of the
wheel nuts.
5. Take off the at tire.
Rear Position – All Other Models
516