
Black plate (35,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-35
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear or cracking. See
Maintenance Schedule on
page 11‑3.
Replacement blades come in
different types and are removed in
different ways.
To replace the wiper blade
assembly:
1. Pull the windshield wiper armconnector away from the
windshield.
2. Squeeze the grooved areas on
each side of the blade, and
rotate the blade assembly away
from the arm connector.
3. Install the new blade onto thearm connector and make sure
the grooved areas are fully set in
the locked position.
For the proper type and size, see
Maintenance Replacement Parts on
page 11‑14.
Glass Replacement
If the windshield or front side
glass must be replaced, see your
dealer to determine the correct
replacement glass.
Headlamp Aiming
The vehicle has a visual optical
headlamp aiming system. The aim
of the headlamps has 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
may be affected and adjustment
may be necessary.
If oncoming vehicles flash their high
beams at you, this may mean the
vertical aim of the headlamps needs
to be adjusted.
It is recommended that the vehicle
be taken to your dealer for service if
the headlamps need to be adjusted.
It is possible, however, to re-aim the
headlamps as described.

Black plate (36,1)Chevrolet Avalanche Owner Manual - 2012
10-36 Vehicle Care
The vehicle should:
.Be placed so the headlamps
are 7.6 m (25 ft) 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 loaded with a full tank of
fuel and one person or 75 kg
(160 lbs) sitting on the
driver seat.
.Have the tires properly inflated.
.Have the spare tire 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.
To adjust the vertical aim:
1. Open the hood. See
Hood on
page 10‑52. Locate the aim dot on the lens of the low‐beam headlamp. 3. Record the distance from the
ground to the aim dot on the
low‐beam headlamp.
4. At a wall, measure from the
ground upward (A) to the
recorded distance from
Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall the width of the
vehicle at the height of the mark
in Step 4.

Black plate (44,1)Chevrolet Avalanche Owner Manual - 2012
10-44 Vehicle Care
FusesUsage
28 Fog Lamps
29 Horn
30 Passenger Side
High-Beam
Headlamp
31 Daytime Running
Lamps (DRL)
(If Equipped)
32 Driver Side
High-Beam
Headlamp
33 Daytime Running
Lamps 2
(If Equipped)
34 Sunroof
35 Key Ignition
System,
Theft‐Deterrent
System Fuses
Usage
36 Windshield Wiper
37 SEO B2 Upfitter
Usage (Battery)
38 Electric Adjustable
Pedals
39 Climate Controls
(Battery)
40 Airbag System
(Ignition)
41 Amplifier
42 Audio System
43 Miscellaneous
(Ignition), Cruise
Control
44 Liftgate Release
45 Airbag System
(Battery) Fuses
Usage
46 Instrument Panel
Cluster
47 Not Used
48 Auxiliary Climate
Control (Ignition)
49 Center
High-Mounted
Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter
Usage (Battery)
53 Auxiliary Power
Outlet
54 Automatic Level
Control
Compressor Relay

Black plate (45,1)Chevrolet Avalanche Owner Manual - 2012
Vehicle Care 10-45
FusesUsage
55 Climate Controls
(Ignition)
56 Engine Control
Module, Secondary
Fuel Pump
(Ignition)
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 J-Case
Fuses Usage
63 Stud 2 (Trailer
Brakes)
64 Left Bussed
Electrical Center 1
65 Electric Running
Boards
66 Not Used
67 Transfer Case
68 Stud 1 (Trailer
Connector Battery
Power)
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/CRNK Switched Power

Black plate (5,1)Chevrolet Avalanche Owner Manual - 2012
INDEX i-5
Front Fog LampLight . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated and Ventilated . . . . . . . . . 3-9
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-60 Additives . . . . . . . . . . . . . . . . . . . . . 9-62
E85 (85% Ethanol) . . . . . . . . . . . 9-63
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 9-66
Filling the Tank . . . . . . . . . . . . . . . 9-64
Fuels in Foreign Countries . . . . 9-62
Gasoline Specifications . . . . . . . 9-61
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Low Fuel Warning Light . . . . . . . 5-25
Management, Active . . . . . . . . . . 9-30
Recommended . . . . . . . . . . . . . . . 9-61
Requirements, California . . . . . 9-61
System Messages . . . . . . . . . . . . 5-39
Fuel Economy Driving . . . . . . . . . . . . . . . . . . . . . . . . 1-26
Full-Size Spare Tire . . . . . . . . . . 10-86 Fuses
Engine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-41
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-41
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-46
G
Garage Door Opener . . . . . . . . . . 5-53
Programming . . . . . . . . . . . . . . . . . 5-53
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-61
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 5-14
Engine Oil Pressure . . . . . . . . . . 5-13
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . . 5-12
Trip Odometer . . . . . . . . . . . . . . . . 5-12
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-15
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 5-10 General Information
Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-66
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glass Replacement . . . . . . . . . . . 10-35
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-7H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-38
Hazard Warning Flashers . . . . . . . 6-5
Head Restraints . . . . . . . . . . . . . . . . 3-2
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . 10-35
Automatic . . . . . . . . . . . . . . . . . . . . . . 6-4
Bulb Replacement . . . . . . . . . . 10-38
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . . 6-3
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
High-Beam On Light . . . . . . . . . . 5-26
High/Low Beam Changer . . . . . . 6-3
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Heated Mirrors . . . . . . . . . . . . . . . . . 2-22

Black plate (6,1)Chevrolet Avalanche Owner Manual - 2012
i-6 INDEX
HeaterEngine . . . . . . . . . . . . . . . . . . . . . . . . 9-27
Heating and Air Conditioning . . . 8-1
High-Beam On Light . . . . . . . . . . . 5-26
Highway Hypnosis . . . . . . . . . . . . . 9-12
Hill and Mountain Roads . . . . . . . 9-12
Hill Start Assist (HSA) . . . . . . . . . 9-46
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-13
I
Ignition Positions . . . . . . . . . . . . . . 9-23
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . 10-34
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-18
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-38
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-11
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-86
K
Key and Lock Messages . . . . . . . 5-40
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-50
Lamp Messages . . . . . . . . . . . . . . . 5-40
Lamps Daytime Running (DRL) . . . . . . . 6-3
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Exterior Cargo . . . . . . . . . . . . . . . . . 6-6
Exterior Controls . . . . . . . . . . . . . . . 6-1
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . . 6-3
License Plate . . . . . . . . . . . . . . . 10-39
Malfunction Indicator . . . . . . . . . 5-19
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-7
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-19
Lap-Shoulder Belt . . . . . . . . . . . . . 3-14
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 3-51
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-45 Level Control
Automatic . . . . . . . . . . . . . . . . . . . . . 9-50
Light StabiliTrak
®OFF . . . . . . . . . . . . . 5-23
Lighting Entry/Exit . . . . . . . . . . . . . . . . . . . . . . 6-8
Illumination Control . . . . . . . . . . . . 6-7
Lights Airbag Readiness . . . . . . . . . . . . . 5-16
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 5-22
Brake System Warning . . . . . . . 5-21
Charging System . . . . . . . . . . . . . 5-18
Cruise Control . . . . . . . . . . . . . . . . 5-26
Engine Oil Pressure . . . . . . . . . . 5-24
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-3
Front Fog Lamp . . . . . . . . . . . . . . 5-26
High-Beam On . . . . . . . . . . . . . . . . 5-26
High/Low Beam Changer . . . . . . 6-3
Low Fuel Warning . . . . . . . . . . . . 5-25
Safety Belt Reminders . . . . . . . . 5-15
Security . . . . . . . . . . . . . . . . . . . . . . 5-25
Tire Pressure . . . . . . . . . . . . . . . . . 5-24
Tow/Haul Mode . . . . . . . . . . . . . . . 5-23
Traction Control System (TCS)/StabiliTrak
®. . . . . . . . . . 5-23