2008 CHEVROLET AVALANCHE headlamp

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.
5-52

{CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts, and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-80for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on the vehicle is
dangerous. You cannot know how it has been
used or how far it has been driven. It could fail
suddenly and cause a crash. If you have to
replace a wheel, use a new GM original
equipment wheel.
5-77

Fuses Usage
1 Right Trailer Stop/Turn Lamp
2Electronic Stability Suspension
Control, Automatic Level Control
Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5Engine Control Module, Throttle
Control
Fuses Usage
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensors
9 Antilock Brakes System 2
10 Trailer Back-up Lamps
11 Driver Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)
15 Vehicle Back-up Lamps
16Passenger Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Headlamp Washers
23 Rear Windshield Washer
5-112

Fuses Usage
24Fuel Injectors, Ignition Coils
(Left Side)
25 Trailer Park Lamps
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30Passenger Side High-Beam
Headlamp
31 Daytime Running Lamps
32 Driver Side High-Beam Headlamp
33 Daytime Running Lights 2
34 Sunroof
35Key Ignition System, Theft Deterrent
System
36 Windshield Wiper
37 SEO B2 Uptter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 AmplierFuses Usage
42 Audio System
43Miscellaneous (Ignition),
Cruise Control
44 Liftgate Release
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
49 Center High-Mounted Stoplamp
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Uptter Usage (Battery)
53Cigarette Lighter, Auxiliary Power
Outlet
54Automatic Level Control Compressor
Relay, SEO Uptter Usage
55 Climate Controls (Ignition)
56Engine Control Module, Secondary
Fuel Pump (Ignition)
5-113

J-Case Fuses Usage
57 Cooling Fan 1
58 Automatic Level Control Compressor
59 Heavy Duty Antilock Brake System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Electric Running Boards
66 Heated Windshield Washer System
67 Four-Wheel Drive System
68Stud 1 (Trailer Connector Battery
Power)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Power Liftgate Module
72 Left Bussed Electrical Center 2Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HID Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power
5-114

Audio System (cont.)
Theft-Deterrent Feature...............................3-118
XM™ Satellite Radio Antenna System...........3-120
Audio System(s).............................................3-78
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-22
Operation...................................................2-35
B
Battery..........................................................5-41
Electric Power Management..........................3-19
Run-Down Protection...................................3-19
Brake
Emergencies................................................ 4-5
Brakes..........................................................5-38
System Warning Light..................................3-39
Braking........................................................... 4-3
Braking in Emergencies..................................... 4-5
Break-In, New Vehicle.....................................2-30
Bulb Replacement...........................................5-53
Halogen Bulbs............................................5-53
Headlamp Aiming........................................5-50
License Plate Lamps....................................5-54
Replacement Bulbs......................................5-55
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps.................5-53
Buying New Tires...........................................5-72
C
Calibration.............................................2-49, 2-52
California Fuel.................................................. 5-6
California Perchlorate Materials Requirements....... 5-4
California Proposition 65 Warning....................... 5-4
Canadian Owners................................................ ii
Capacities and Specications..........................5-115
Carbon Monoxide...................2-12, 2-22, 2-48, 4-31
Care of
Safety Belts..............................................5-102
Cargo Area, All-Weather..................................2-85
Cargo Cover Panels........................................2-73
CD, MP3 .............................................3-96, 3-101
Center Console Storage Area...........................2-71
Center Overhead Console................................2-71
Center Seat...................................................1-11
Chains, Tire...................................................5-78
Charging System Light....................................3-38
Check
Engine Light...............................................3-43
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-106
Child Restraints
Child Restraint Systems...............................1-42
Infants and Young Children...........................1-38
Lower Anchors and Tethers for Children..........1-46
Older Children.............................................1-35
2

G
Gage
Engine Coolant Temperature.........................3-42
Fuel..........................................................3-49
Oil Pressure...............................................3-46
Speedometer..............................................3-34
Tachometer.................................................3-34
Voltmeter Gage...........................................3-39
Garage Door Opener.......................................2-64
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-6
Glove Box.....................................................2-71
GM Mobility Reimbursement Program.................. 7-6
H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-11
Headlamp
Aiming .......................................................5-50
Headlamps
Bulb Replacement.......................................5-53
Daytime Running Lamps...............................3-16
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-9Headlamps (cont.)
Halogen Bulbs............................................5-53
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-15
Heated Seats................................................... 1-5
Heater...........................................................3-21
Engine Coolant...........................................2-34
Heater...........................................................3-24
Highbeam On Light.........................................3-48
Highway Hypnosis...........................................4-29
Hill and Mountain Roads..................................4-30
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-19I
Ignition Positions.............................................2-30
Infants and Young Children, Restraints...............1-38
Ination - Tire Pressure...................................5-64
Instrument Panel
Brightness..................................................3-18
Cluster.......................................................3-33
Overview..................................................... 3-4
6