warning light CHEVROLET AVALANCHE 2007 2.G Owner's Guide

The following explains your cooling system and
how to add coolant when it is low. If you have
a problem with engine overheating, seeEngine
Overheating on page 460.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would
not be covered by your warranty. Always
use DEX-COOL
®(silicate-free) coolant in
your vehicle.
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL®coolant which will
not damage aluminum parts. If you use this coolant
mixture, you do not need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
458

Brakes
Brake Fluid
Your brake master
cylinder reservoir is
lled with DOT-3 brake
uid. SeeEngine
Compartment Overview
on page 444for the
location of the reservoir.
There are only two reasons why the brake uid
level in the reservoir might go down. The rst
is that the brake uid goes down to an acceptable
level during normal brake lining wear. When
new linings are put in, the uid level goes back
up. The other reason is that uid is leaking out of
the brake system. If it is, you should have your
brake system xed, since a leak means that
sooner or later your brakes will not work well,
or will not work at all.So, it is not a good idea to top off your brake uid.
Adding brake uid will not correct a leak. If you
add uid when your linings are worn, then you
will have too much uid when you get new brake
linings. You should add or remove brake uid,
as necessary, only when work is done on
the brake hydraulic system.
{CAUTION:
If you have too much brake uid, it can
spill on the engine. The uid will burn
if the engine is hot enough. You or others
could be burned, and your vehicle could
be damaged. Add brake uid only when
work is done on the brake hydraulic
system. See “Checking Brake Fluid”
in this section.
When the brake uid falls to a low level, the brake
warning light will come on. SeeBrake System
Warning Light on page 246.
Refer to the Maintenance Schedule to determine
when to check your brake uid. SeeScheduled
Maintenance on page 563.
472

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that
make a high-pitched warning sound when the
brake pads are worn and new pads are needed.
The sound may come and go or be heard all
the time your vehicle is moving, except when
you are pushing on the brake pedal rmly.
{CAUTION:
The brake wear warning sound means that
soon the brakes will not work well. That
could lead to an accident. When you hear
the brake wear warning sound, have your
vehicle serviced.
Notice:Continuing to drive with worn-out
brake pads could result in costly brake repair.Some driving conditions or climates may cause a
brake squeal when the brakes are rst applied
or lightly applied. This does not mean something
is wrong with your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated,
inspect brake pads for wear and evenly tighten
wheel nuts in the proper sequence to GM torque
specications.
Brake linings should always be replaced as
complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return
to normal height, or if there is a rapid increase
in pedal travel. This could be a sign of brake
trouble.
Brake Adjustment
Every time you make a brake stop, your disc
brakes adjust for wear.
474

When a low tire pressure condition is detected,
the TPMS will illuminate the low tire pressure
warning symbol located on the instrument panel
cluster. If your vehicle has the DIC feature, a
message to check the pressure in a specic tire
will also appear on the DIC display. The low
tire pressure warning symbol on the instrument
panel cluster and the CHECK TIRE PRESSURE
warning message on the DIC display will appear at
each ignition cycle until the tires are inated to
the correct ination pressure. For additional
information and details about the DIC operation
and displays seeDIC Operation and Displays
(With DIC Buttons) on page 258orDIC Operation
and Displays (Without DIC Buttons) on page 264
andDIC Warnings and Messages on page 267.
You may notice, during cooler weather conditions,
that the tire pressure monitor light, located on
the instrument panel cluster, and the CHECK TIRE
PRESSURE message will appear when the
vehicle is rst started and then turn off as you
start to drive the vehicle. This could be an early
indicator that the tire pressures are getting low and
need to be inated to the proper pressure.Each tire, including the spare (if provided), should
be checked monthly when cold and inated to
the ination pressure recommended by the
vehicle manufacturer on the vehicle placard or tire
ination pressure label. (If your vehicle has tires
of a different size than the size indicated on
the vehicle placard or tire ination pressure label,
you should determine the proper tire ination
pressure for those tires.)
As an added safety
feature, your vehicle
has been equipped
with a tire pressure
monitoring system
(TPMS) that illuminates
a low tire pressure
telltale when one
or more of your tires
is signicantly
under-inated.
502

Accordingly, when the low tire pressure telltale
illuminates, you should stop and check your tires
as soon as possible, and inate them to the
proper pressure. Driving on a signicantly
under-inated tire causes the tire to overheat and
can lead to tire failure. Under-ination also
reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driver’s
responsibility to maintain correct tire pressure,
even if under-ination has not reached the level to
trigger illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS
malfunction indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will ash for approximately
one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists.When the malfunction indicator is illuminated, the
system may not be able to detect or signal low
tire pressure as intended. TPMS malfunctions may
occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS from
functioning properly. Always check the TPMS
malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow
the TPMS to continue to function properly.
The CHECK TIRE PRESSURE warning message
and low tire pressure light (telltale) will come
on each time the vehicle is started until the tires
are inated to the correct ination pressure.
The Tire and Loading Information label (tire
information placard) shows the size of your
vehicle’s original tires and the correct ination
pressure for your vehicle’s tires when they
are cold. SeeInation - Tire Pressure on
page 500. For the location of the tire and loading
information label, seeLoading Your Vehicle
on page 402.
503

Uniform Tire Quality Grading
Quality grades can be found where applicable on
the tire sidewall between tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration (NHTSA), which
grades tires by treadwear, traction, and
temperature performance. This applies only to
vehicles sold in the United States. The grades are
molded on the sidewalls of most passenger car
tires. The Uniform Tire Quality Grading (UTQG)
system does not apply to deep tread, winter-type
snow tires, space-saver, or temporary use
spare tires, tires with nominal rim diameters of
10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specied
government test course. For example, a tire
graded 150 would wear one and a half (1.5) times
as well on the government course as a tire
graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from
the norm due to variations in driving habits, service
practices, and differences in road characteristics
and climate.
Traction – AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B, and C. Those grades represent the tire’s
ability to stop on wet pavement as measured
under controlled conditions on specied
government test surfaces of asphalt and concrete.
A tire marked C may have poor traction
performance.
Warning:The traction grade assigned to this tire
is based on straight-ahead braking traction
tests, and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
511

A
Accessories and Modications..................... 433
Accessory Power Outlet(s).......................... 226
Adding Equipment to Your
Airbag-Equipped Vehicle............................ 87
Additives, Fuel............................................ 437
Add-On Electrical Equipment....................... 547
Adjustable Throttle and Brake Pedal............ 126
Air Cleaner/Filter, Engine............................. 451
Air Conditioning..................................227, 230
Airbag
Passenger Status Indicator....................... 243
Readiness Light....................................... 242
Airbag Sensing and Diagnostic
Module (SDM).......................................... 594
Airbag System............................................... 72
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 87
How Does an Airbag Restrain?.................. 79
Passenger Sensing System....................... 81
Servicing Your Airbag-Equipped Vehicle..... 86
What Makes an Airbag Inate?.................. 79
What Will You See After an
Airbag Inates?...................................... 80
When Should an Airbag Inate?................. 77
Where Are the Airbags?............................. 75Antenna, Fixed Mast................................... 349
Antenna, XM™ Satellite Radio
Antenna System....................................... 349
Anti-Lock Brake System (ABS).................... 357
Anti-Lock Brake, System Warning Light....... 248
Appearance Care
Aluminum or Chrome-Plated Wheels........ 542
Care of Safety Belts................................ 540
Chemical Paint Spotting........................... 544
Cleaning Exterior Lamps/Lenses.............. 541
Cleaning the Inside of Your Vehicle.......... 537
Fabric/Carpet........................................... 538
Finish Care.............................................. 541
Finish Damage......................................... 544
Instrument Panel, Vinyl, and
Other Plastic Surfaces.......................... 540
Leather.................................................... 539
Sheet Metal Damage............................... 544
Tires........................................................ 543
Underbody Maintenance........................... 544
Vehicle Care/Appearance Materials.......... 545
Washing Your Vehicle .............................. 541
Weatherstrips........................................... 540
Windshield and Wiper Blades................... 542
Ashtray(s).................................................... 226
603

Audio System(s).......................................... 286
Audio Steering Wheel Controls................. 347
Care of Your CD and DVD Player............ 349
Care of Your CDs and DVDs................... 349
Fixed Mast Antenna................................. 349
Navigation/Radio System,
see Navigation Manual......................... 334
Radio with CD......................................... 291
Radio with CD and DVD.......................... 301
Rear Seat Audio (RSA)............................ 345
Setting the Time.....................288, 289, 290
Theft-Deterrent Feature............................ 347
Understanding Radio Reception............... 348
XM™ Satellite Radio Antenna System...... 349
Automatic Headlamp System....................... 217
Automatic Transmission
Fluid........................................................ 454
Operation................................................. 128
BBattery........................................................ 475
Electric Power Management..................... 220
Run-Down Protection............................... 221
Before Leaving on a Long Trip.................... 392
Brake
Anti-Lock Brake System (ABS)................. 357
Emergencies............................................ 359Brake (cont.)
Parking.................................................... 138
System Warning Light.............................. 246
Brake Pedal, Throttle................................... 126
Brakes........................................................ 472
Braking....................................................... 356
Braking in Emergencies............................... 359
Break-In, New Vehicle................................. 122
Bulb Replacement....................................... 488
Halogen Bulbs......................................... 488
Headlamp Aiming..................................... 485
License Plate Lamps................................ 490
Replacement Bulbs.................................. 490
Taillamps, Turn Signal, Sidemarker,
Stoplamps, and Back-Up Lamps........... 488
Buying New Tires........................................ 508
C
Calibration..........................................145, 148
California Fuel............................................. 436
California Proposition 65 Warning................ 433
Canadian Owners........................................... 3
Capacities and Specications...................... 556
Carbon Monoxide......................105, 115, 143,
396, 414
604

Content Theft-Deterrent............................... 118
Control of a Vehicle..................................... 356
Coolant
Engine Temperature Gage........................ 249
Heater, Engine......................................... 126
Surge Tank Pressure Cap........................ 460
Cooling System........................................... 464
Cruise Control............................................. 212
Cruise Control Light.................................... 255
Cupholder(s)................................................ 170
Customer Assistance Information
Courtesy Transportation........................... 592
Customer Assistance for Text
Telephone (TTY) Users......................... 586
Customer Assistance Offices.................... 586
Customer Satisfaction Procedure.............. 582
GM Mobility Reimbursement Program...... 588
Reporting Safety Defects to
General Motors..................................... 600
Reporting Safety Defects to the
Canadian Government.......................... 599
Reporting Safety Defects to the
United States Government.................... 599
Roadside Assistance Program.................. 588
Service Publications Ordering
Information........................................... 600D
Daytime Running Lamps............................. 216
Defensive Driving........................................ 352
Delayed Locking.......................................... 103
Disc, MP3..........................................319, 325
Doing Your Own Service Work.................... 434
Dome Lamp Override.................................. 220
Dome Lamps............................................... 220
Door
Delayed Locking...................................... 103
Locks....................................................... 102
Power Door Locks................................... 103
Programmable Automatic Door Locks....... 103
Rear Door Security Locks........................ 104
Driver
Position, Safety Belt................................... 26
Driver Information Center (DIC)................... 257
DIC Operation and Displays............258, 264
DIC Vehicle Customization....................... 278
DIC Warnings and Messages................... 267
Driving
At Night................................................... 385
City.......................................................... 390
Defensive................................................. 352
Drunken................................................... 353
606

F
Filter
Engine Air Cleaner................................... 451
Finish Damage............................................ 544
Fixed Mast Antenna.................................... 349
Flashers, Hazard Warning........................... 206
Flash-to-Pass.............................................. 209
Flat Tire...................................................... 515
Flat Tire, Changing...................................... 516
Flat Tire, Storing......................................... 533
Fluid
Automatic Transmission............................ 454
Power Steering........................................ 469
Windshield Washer.................................. 470
Fog Lamp Light........................................... 255
Fog Lamps.................................................. 218
Four-Wheel Drive...............................132, 483
Front Armrest Storage Area......................... 171
Front Axle................................................... 484
Fuel............................................................ 435
Additives.................................................. 437
California Fuel.......................................... 436
E85 (85% Ethanol)................................... 438
Filling a Portable Fuel Container.............. 442
Filling Your Tank...................................... 440
Fuels in Foreign Countries....................... 439Fuel (cont.)
Gage....................................................... 256
Gasoline Octane...................................... 436
Gasoline Specications............................ 436
Fuses
Center Instrument Panel Fuse Block........ 550
Fuses and Circuit Breakers...................... 548
Instrument Panel Fuse Block................... 548
Underhood Fuse Block............................. 551
Windshield Wiper..................................... 547
G
Gage
Engine Coolant Temperature.................... 249
Fuel......................................................... 256
Oil Pressure............................................. 253
Speedometer........................................... 241
Tachometer.............................................. 241
Voltmeter Gage........................................ 246
Garage Door Opener..........................159, 160
Gasoline
Octane..................................................... 436
Specications........................................... 436
Glove Box................................................... 170
GM Mobility Reimbursement Program.......... 588
608