2008 CHEVROLET SUBURBAN high beam

What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. SeeRecommended Fluids
and Lubricants on page 6-13.
Headlamp Aiming
The vehicle has a visual optical headlamp aiming
system. The aim of the headlamps have been preset at
the factory and should need no further adjustment.
However, if the vehicle is damaged in a crash, the aim
of the headlamps can be affected and adjustment
can be necessary.
If oncoming vehicles ash their high beams at you, this
can mean the vertical aim of your headlamps needs
to be adjusted.
It is recommended that the vehicle is taken to your
dealer/retailer for service if the headlamps need to
be adjusted. It is possible however, to re-aim the
headlamps as described.The vehicle should:
Be placed so the headlamps are 25 ft. (7.6 m) from
a light colored wall.
Have all four tires on a level surface which is level
all the way to the wall.
Be placed so it is perpendicular to the wall.
Not have any snow, ice, or mud on it.
Be fully assembled and all other work stopped while
headlamp aiming is being performed.
Be normally loaded with a full tank of fuel and one
person or 160 lbs (75 kg) sitting on the driver seat.
Have tires properly inated.
Have the spare tire is in its proper location in the
vehicle.
Headlamp aiming is done with the vehicle’s low-beam
headlamps. The high-beam headlamps will be correctly
aimed if the low-beam headlamps are aimed properly.
5-58

Fuses Usage
20 Fuel Pump
21 Fuel System Control Module
22 Headlamp Washer
23 Rear Windshield Washer
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 (DRL)
32 Driver Side High-Beam Headlamp
33 Daytime Running Lamps 2
34 Sunroof
35Key Ignition System, Theft Deterrent
SystemFuses Usage
36 Windshield Wiper
37 SEO B2 Uptter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplier
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),
Temperature Mirror
49Center High-Mounted
Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
5-124

Fuses Usage
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)
J-Case Fuses Usage
57 Cooling Fan 1
58 Not Used
59 Heavy Duty Antilock Brakes
60 Cooling Fan 1
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)
J-Case Fuses Usage
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Power Liftgate Module
72 Left Bussed Electrical Center 2
Relays 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
5-125

H
Hazard Warning Flashers................................... 3-6
Head Restraints..............................................1-10
Headlamp
Aiming .......................................................5-58
Headlamps
Bulb Replacement.......................................5-61
Daytime Running Lamps...............................3-16
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-8
Halogen Bulbs............................................5-61
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Heated Seats................................................... 1-5
Heater...........................................................3-22
Engine Coolant...........................................2-28
Heater...........................................................3-24
Highbeam On Light.........................................3-49
Highway Hypnosis...........................................4-28
Hill and Mountain Roads..................................4-29
Hood
Checking Things Under................................5-14
Release.....................................................5-14
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-34
I
Ignition Positions.............................................2-25
Infants and Young Children, Restraints...............1-54
Ination - Tire Pressure...................................5-74
Instrument Panel
Brightness..................................................3-18
Cluster.......................................................3-35
Overview..................................................... 3-4
J
Jump Starting.................................................5-48
K
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
6

L
Labeling, Tire Sidewall.....................................5-67
Lamps
Auxiliary Roof Mounted Lamp........................3-18
Dome ........................................................3-18
Dome Lamp Override...................................3-19
Reading.....................................................3-19
Lap Belt........................................................1-48
Lap-Shoulder Belt...........................................1-42
LATCH System
Child Restraints...........................................1-61
Level Control..................................................4-48
License Plate Lamps.......................................5-63
Liftgate, Power...............................................2-14
Liftgate/Liftglass..............................................2-12
Liftglass/Liftgate..............................................2-12
Light
Airbag Readiness........................................3-37
Anti-lock Brake System (ABS) Warning...........3-42
Brake System Warning.................................3-41
Charging System.........................................3-40
Cruise Control.............................................3-49
Fog Lamp ..................................................3-48
Highbeam On.............................................3-49
Low Fuel Warning.......................................3-50
Malfunction Indicator....................................3-44
Oil Pressure...............................................3-48
Passenger Airbag Status Indicator..................3-38
Safety Belt Reminders..................................3-36Light (cont.)
Security.....................................................3-48
StabiliTrak®Indicator....................................3-43
Tire Pressure..............................................3-44
Tow/Haul Mode...........................................3-49
Lighting
Entry.........................................................3-19
Exit...........................................................3-19
Lights
Exterior Lamps............................................3-14
Flash-to-Pass............................................... 3-8
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-15
Loading Your Vehicle.......................................4-35
Locking Rear Axle............................................ 4-6
Lockout Protection..........................................2-12
Locks
Delayed Locking..........................................2-11
Door ..........................................................2-10
Lockout Protection.......................................2-12
Power Door ................................................2-10
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-11
Loss of Control...............................................4-11
Low Fuel Warning Light...................................3-50
Luggage Carrier..............................................2-71
Lumbar
Manual Controls............................................ 1-4
Power Controls............................................. 1-4
7