Page 381 of 508

Black plate (37,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-37
Notice:Do not cover a headlamp
to improve beam cut-off when
aiming. Covering a headlamp may
cause excessive heat build-up
which may cause damage to the
headlamp.
6. Turn on the low-beam
headlamps and place a piece of
cardboard or equivalent in front
of the headlamp not being
adjusted. This allows only the
beam of light from the headlamp
being adjusted to be seen on the
flat surface.
7. Locate the vertical headlampaiming screws, which are under
the hood near each headlamp
assembly.
The adjustment screw can be
turned with an 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 theheadlamp 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.
Page 383 of 508

Black plate (39,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-39
4. Turn the bulb socketcounterclockwise 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 the bulb socket
into the taillamp assembly. Turn
the bulb socket clockwise into
the taillamp assembly until it
clicks.
7. Reinstall the taillamp assembly making sure to line up the pins
with the vehicle.License Plate Lamp
To replace one of these bulbs:
1. Reach under the rear bumper for
the bulb socket. Turn the bulb
socket counterclockwise and pull
the bulb socket out of the lamp
assembly.
2. Pull the bulb straight out of the socket.
3. Install the new bulb into the socket.
4. Reinstall the bulb socket by turning it clockwise into the lamp
assembly.
Replacement Bulbs
Exterior Lamp Bulb
Number
Back-up Lamp 7441
License
Plate Lamp 168
Rear Turn Signal
Lamp, Taillamp,
and Stoplamp 3057K
Sidemarker Lamp 194LL
For replacement bulbs not listed
here, contact your dealer.
Page 416 of 508
Black plate (72,1)Chevrolet Avalanche Owner Manual - 2012
10-72 Vehicle Care
Tire Changing
Removing the Spare Tire and
Tools
The jack and the wheel blocks are
located under a cover near the
passenger side rear seat.
Rear Seat (Passenger Side) JackCover
1. Remove the jack cover by turning the two wing nuts
one-quarter turn
counterclockwise and
pulling the jack cover off.
A. Wheel Blocks
B. Jack Knob
C. Wing Nut
D. Retaining Hook
E. Jack
F. Mounting Bracket
2. Turn the jack knob (B) on the jack counterclockwise to release
the jack (E) from the mounting
bracket (F). 3. Turn the wing nut (C)
counterclockwise to remove the
wheel blocks (A) attached to the
jack (E). Place the wheel blocks
where needed as indicated in
previously in this section.
The tools for changing a flat tire are
located in the passenger side
top-box storage unit.
Page 417 of 508
Black plate (73,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-73
To remove the tools:
1. Open the top door on thepassenger side top-box storage
unit. Use the ignition/door key to
unlock it if it is locked. See
Top-Box Storage on page 4‑2 for
more information.
2. Remove the black pouch from the storage box. To access the spare tire:
A. Spare Tire (Valve Stem
Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire/Wheel Retainer
E. Hoist Shaft F. Hoist End of Extension Tool
G. Hoist Shaft Access Hole
H. Wheel Wrench
I. Jack Handle Extension(s)
J. Spare Tire Lock
1. Open the hoist shaft access
cover on the bumper to access
the spare tire lock (J).
2. To remove the spare tire lock, insert the ignition key, turn it
clockwise and pull it straight out.
Page 418 of 508
Black plate (74,1)Chevrolet Avalanche Owner Manual - 2012
10-74 Vehicle Care
3. Assemble the two jack handleextensions (I) and wheel
wrench (H), as shown.4. Insert the open end of theextension (F) through the hole in
the rear bumper (G) (hoist shaft
access hole).
Be sure the hoist end (F) of the
extension connects to the hoist
shaft. The ribbed square end of
the extension is used to lower
the spare tire.
Do not use the chiseled end of
the wheel wrench. 5. Turn the wheel wrench
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. See Secondary Latch
System on page 10‑83 for more
information.
Page 420 of 508
Black plate (76,1)Chevrolet Avalanche Owner Manual - 2012
10-76 Vehicle Care
Removing the Flat Tire and
Installing the Spare Tire
A. Jack
B. Wheel Blocks
C. Jack Handle
D. Jack Handle Extensions
E. Wheel Wrench
1. Do a safety check beforeproceeding. See If a Tire Goes
Flat on page 10‑70 for more
information.
2. To remove the center cap, 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 loosenall the wheel nuts. Turn the
wheel wrench counterclockwise
to loosen the wheel nuts. Do not
remove the wheel nuts yet.
Page 422 of 508

Black plate (78,1)Chevrolet Avalanche Owner Manual - 2012
10-78 Vehicle Care
Front Position
Front Tire Flat: If the flat tire is
on a front tire of the vehicle, use
the jack handle and only one
jack handle extension. Attach
the wheel wrench to the jack
handle extension. Attach the
jack handle to the jack (A).
Position the jack on the frame
behind the flat tire near the
front body mount, as shown.
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 clear
the ground.
Rear Position
Rear Tire Flat: If the flat tire is
on a rear tire of the vehicle, 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.
5. Remove all the wheel nuts.
6. Take off the flat tire.
Page 423 of 508

Black plate (79,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-79
{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
towel can be used; however, use
a scraper or wire brush later to
remove all rust or dirt.
7. Remove any rust or dirt from thewheel bolts, mounting surfaces,
and spare wheel.
8. 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.
9. Put the wheel nuts back on with the rounded end of the nuts
toward the wheel after mounting
the spare tire.
10. Tighten each wheel nut by hand. Then use the wheel
wrench to tighten the wheel
nuts until the wheel is held
against the hub.
11. Turn the wheel wrench counterclockwise to lower the
vehicle. Lower the jack
completely.