2007 CHEVROLET AVALANCHE high beam

No one can see as well at night as in the daytime.
But as we get older these differences increase.
A 50-year-old driver may require at least twice as
much light to see the same thing at night as a
20-year-old.
What you do in the daytime can also affect your
night vision. For example, if you spend the
day in bright sunshine you are wise to wear
sunglasses. Your eyes will have less trouble
adjusting to night. But if you are driving, do not
wear sunglasses at night. They may cut down on
glare from headlamps, but they also make a
lot of things invisible.
You can be temporarily blinded by approaching
headlamps. It can take a second or two, or
even several seconds, for your eyes to re-adjust
to the dark. When you are faced with severe glare,
as from a driver who does not lower the high
beams, or a vehicle with misaimed headlamps,
slow down a little. Avoid staring directly into
the approaching headlamps.Keep the windshield and all the glass on your
vehicle clean — inside and out. Glare at night is
made much worse by dirt on the glass. Even
the inside of the glass can build up a lm caused
by dust. Dirty glass makes lights dazzle and
ash more than clean glass would, making the
pupils of your eyes contract repeatedly.
Remember that the headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it is easier to pick out dimly
lighted objects. Just as the headlamps should be
checked regularly for proper aim, so should your
eyes be examined regularly. Some drivers suffer
from night blindness — the inability to see in dim
light — and are not even aware of it.
386

What to Use
Refer to the Maintenance Schedule to determine
what kind of lubricant to use. SeeRecommended
Fluids and Lubricants on page 574.
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 an accident,
the aim of the headlamps may be affected and
adjustment may be necessary.
If oncoming vehicles ash their high beams at
you, this may mean the vertical aim of your
headlamps needs to be adjusted.
It is recommended that the vehicle is taken to
your dealer/retailer/retailer for service if the
headlamps need to be adjusted. It is possible
however, to re-aim the headlamps as described
in the following procedure.The vehicle should be properly prepared as
follows:
The vehicle should be placed so the headlamps
are 25 ft. (7.6 m) from a light colored wall.
The vehicle must have all four tires on a level
surface which is level all the way to the wall.
The vehicle should be placed so it is
perpendicular to the wall.
The vehicle should not have any snow, ice,
or mud on it.
The vehicle should be fully assembled and all
other work stopped while headlamp aiming is
being performed.
The vehicle should be normally loaded
with a full tank of fuel and one person or
160 lbs (75 kg) sitting on the driver’s seat.
Tires should be properly inated.
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.
485

Fuses Usage
1 Not Used
2Electronic Stability Suspension
Control, Automatic Level Control
Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5Engine Control Module,
Throttle Control
6 Right Trailer Stop/Turn Lamp
7 Front Washer
8 Oxygen Sensors
9 Anti-lock Brakes System 2
10 Trailer Back-up Lamps
11 Driver’s Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13Fuel Injectors, Ignition Coils
(Right Side)
14Transmission Control Module
(Battery)Fuses Usage
15 Vehicle Back-up Lamps
16Passenger’s Side Low-Beam
Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Not Used
22 Rear Washer
23Fuel Injectors, Ignition Coils
(Left Side)
24 Trailer Park Lamps
25 Driver’s Side Park Lamps
26 Passenger’s Side Park Lamps
27 Fog Lamps
28 Horn
29Passenger’s Side High-Beam
Headlamp
553

Fuses Usage
30 Daytime Running Lamps
31Driver’s Side High-Beam
Headlamp
32 Not Used
33 Sunroof
34Key Ignition System,
Theft Deterrent System
35 Windshield Wiper
36 SEO B2 Uptter Usage (Battery)
37 Electric Adjustable Pedals
38 Climate Controls (Battery)
39 Airbag System (Ignition)
40 Amplier
41 Audio System
42 Four-Wheel Drive
43Miscellaneous (Ignition),
Rear Vision Camera,
Cruise ControlFuses Usage
44 Liftgate Release
45OnStar
®, Rear Seat
Entertainment Display
46 Instrument Panel Cluster
47 Not Used
48 Not Used
49Auxiliary Climate Control (Ignition),
Compass-Temperature Mirror
50 Rear Defogger
51 Airbag System (Battery)
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)
554

J-Case Fuses Usage
60 Cooling Fan 1
61 Automatic Level Control Compressor
62 Heavy Duty Anti-lock Brake System
63 Cooling Fan 2
64 Anti-lock Brake System 1
65 Starter
66 Stud 2 (Trailer Brakes)
67 Left Bussed Electrical Center 1
68 Electric Running Boards
69 Heated Windshield Washer System
70 Four-Wheel Drive System
71Stud 1 (Trailer Connector
Battery Power)
72 Mid-Bussed Electrical Center 1
73 Climate Control Blower
74 Power Liftgate Module
75 Left Bussed Electrical Center 2Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
ENG EXH VLV Not Used
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
555

H
Hazard Warning Flashers............................ 206
Head Restraints............................................ 18
Headlamp
Aiming..................................................... 485
Headlamps
Automatic Headlamp System.................... 217
Bulb Replacement.................................... 488
Daytime Running Lamps.......................... 216
Flash-to-Pass........................................... 209
Halogen Bulbs......................................... 488
High/Low Beam Changer......................... 209
On Reminder........................................... 216
Heated Seats................................................ 12
Heater......................................................... 227
Heater......................................................... 230
Highbeam On Light..................................... 256
Highway Hypnosis....................................... 393
Hill and Mountain Roads............................. 394
Hood
Checking Things Under............................ 442
Release................................................... 443
Horn............................................................ 206
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 26
I
Ignition Positions......................................... 123
Infants and Young Children,
Restraints.................................................. 48
Ination - Tire Pressure............................... 500
Instrument Panel
Overview.................................................. 204
Instrument Panel (I/P)
Brightness................................................ 219
Cluster..................................................... 240
J
Jump Starting.............................................. 476
K
Keyless Entry System................................... 94
Keys............................................................. 93
609

L
Labeling, Tire Sidewall................................. 493
Lamps
Battery Run-Down Protection................... 221
Dome....................................................... 220
Dome Lamp Override............................... 220
Electric Power Management..................... 220
Exterior.................................................... 215
Exterior Cargo.......................................... 219
Fog .......................................................... 218
Reading................................................... 220
LATCH System
Child Restraints......................................... 57
Level Control............................................... 413
License Plate Lamps................................... 490
Light
Airbag Readiness..................................... 242
Anti-Lock Brake System Warning............. 248
Brake System Warning............................. 246
Charging System..................................... 245
Cruise Control.......................................... 255
Fog Lamp................................................ 255
Highbeam On.......................................... 256
Malfunction Indicator................................ 250Light (cont.)
Oil Pressure............................................. 254
Passenger Airbag Status Indicator............ 243
Passenger Safety Belt Reminder.............. 242
Safety Belt Reminder............................... 241
Security................................................... 255
StabiliTrak
®Indicator................................ 248
Tire Pressure........................................... 250
Tow/Haul Mode........................................ 256
Lighting
Entry/Exit................................................. 220
Loading Your Vehicle................................... 402
Locking Rear Axle....................................... 359
Lockout Protection....................................... 104
Locks
Delayed Locking...................................... 103
Door........................................................ 102
Lockout Protection................................... 104
Power Door............................................. 103
Programmable Automatic Door Locks....... 103
Rear Door Security Locks........................ 104
Loss of Control........................................... 367
Luggage Carrier.......................................... 171
Lumbar
Power Controls.......................................... 11
610