warning CHEVROLET SILVERADO 2007 1.G Repair Manual

Battery
Your vehicle has a maintenance free battery.
When it is time for a new battery, get one that has
the replacement number shown on the original
battery’s label. We recommend an ACDelco
®
replacement battery. SeeEngine Compartment
Overview on page 500for battery location.
Warning:Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harm. Wash
hands after handling.
Vehicle Storage
If you are not going to drive your vehicle for
25 days or more, remove the black, negative (−)
cable from the battery. This will help keep the
battery from running down.
{CAUTION:
Batteries have acid that can burn you and
gas that can explode. You can be badly
hurt if you are not careful. SeeJump
Starting on page 534for tips on working
around a battery without getting hurt.
533

{CAUTION:
If you operate your vehicle with a tire that
is badly underinated, the tire can
overheat. An overheated tire can lose air
suddenly or catch re. You or others
could be injured. Be sure all tires
(including the spare) are properly inated.
SeeInation - Tire Pressure on page 561, for
information on proper tire ination.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS) uses
radio and sensor technology to check tire pressure
levels. If your vehicle has this feature, sensors
are mounted on each tire and wheel assembly,
except the spare tire. The TPMS sensors monitor
the air pressure in your vehicle’s tires and
transmit tire pressure readings to a receiver
located in the vehicle.The TPMS is designed to alert the driver, if a low
tire pressure condition exists. If your vehicle has the
Driver Information Center (DIC), the driver may also
check tire pressure levels using the DIC.
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 270orDIC Operation
and Displays (Without DIC Buttons) on page 277
andDIC Warnings and Messages on page 281.
563

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 561. For the location of the tire and loading
information label, seeLoading Your Vehicle
on page 427.
Your vehicle’s TPMS can alert you about a low
tire pressure condition but it does not replace
normal tire maintenance. SeeTire Inspection and
Rotation on page 568andTires on page 552.
Notice:Do not use a tire sealant if your
vehicle has Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor
sensors.
565

{CAUTION:
If you use bias-ply tires on your vehicle,
the wheel rim anges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make
sure they are the same size, load range, speed
rating, and construction type (radial and
bias-belted tires) as your vehicle’s original tires.Vehicles that have a tire pressure monitoring
system may give an inaccurate low-pressure
warning if non-TPC spec rated tires are installed
on your vehicle. Non-TPC Spec rated tires
may give a low-pressure warning that is higher or
lower than the proper warning level you would
get with TPC Spec rated tires. SeeTire Pressure
Monitor System on page 563.
Your vehicle’s original equipment tires are listed
on the Tire and Loading Information Label.
This label is attached to the vehicle’s center pillar
(B-pillar). SeeLoading Your Vehicle on page 427,
for more information about the Tire and Loading
Information Label and its location on your vehicle.
573

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.
575

Temperature – A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire’s resistance to
the generation of heat and its ability to dissipate
heat when tested under controlled conditions on a
specied indoor laboratory test wheel. Sustained
high temperature can cause the material of the tire
to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure.
The grade C corresponds to a level of performance
which all passenger car tires must meet under
the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel
than the minimum required by law.
Warning:The temperature grade for this tire is
established for a tire that is properly inated
and not overloaded. Excessive speed,
underination, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned
and balanced carefully at the factory to give you
the longest tire life and best overall performance.
Adjustments to wheel alignment and tire
balancing will not be necessary on a regular basis.
However, if you notice unusual tire wear or your
vehicle pulling to one side or the other, the
alignment may need to be checked. If you notice
your vehicle vibrating when driving on a smooth
road, your tires and wheels may need to be
rebalanced. See your dealer/retailer for proper
diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly
rusted or corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts and wheel nuts
should be replaced. If the wheel leaks air, replace
it (except some aluminum wheels, which can
sometimes be repaired). See your dealer if any of
these conditions exist.
576

A rear blowout, particularly on a curve, acts much
like a skid and may require the same correction
you would use in a skid. In any rear blowout
remove your foot from the accelerator pedal. Get
the vehicle under control by steering the way
you want the vehicle to go. It may be very bumpy
and noisy, but you can still steer. Gently brake
to a stop, well off the road if possible.
{CAUTION:
Lifting a vehicle and getting under it to do
maintenance or repairs is dangerous
without the appropriate safety equipment
and training. The jack provided with your
vehicle is designed only for changing a
at tire. If it is used for anything else, you
or others could be badly injured or killed
if the vehicle slips off the jack. Use the
jack provided with your vehicle only for
changing a at tire.
If a tire goes at, the next part shows how to use the
jacking equipment to change a at tire safely.
Changing a Flat Tire
If a tire goes at, avoid further tire and wheel
damage by driving slowly to a level place. Turn on
your hazard warning ashers. SeeHazard
Warning Flashers on page 213for more
information.
{CAUTION:
Changing a tire can be dangerous. The
vehicle can slip off the jack and roll over
or fall on you or other people. You and
they could be badly injured or even killed.
Find a level place to change your tire. To
help prevent the vehicle from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
CAUTION: (Continued)
580

A
Accessories and Modications..................... 488
Adding a Snow Plow or Similar Equipment..... 434
Adding Equipment to Your Airbag-Equipped
Vehicle..................................................... 105
Additives, Fuel............................................ 492
Add-On Electrical Equipment....................... 611
Adjustable Throttle and Brake Pedal............ 138
Air Cleaner/Filter, Engine............................. 507
Air Conditioning.........................236, 239, 240
Airbag
Off Light.................................................. 252
Passenger Status Indicator....................... 254
Readiness Light....................................... 252
Airbag Sensing and Diagnostic
Module (SDM).......................................... 659
Airbag System............................................... 85
What Will You See After an Airbag
Inates?................................................. 94
When Should an Airbag Inate?................. 91
Where Are the Airbags?............................. 88
Airbag Systems
Adding Equipment to Your
Airbag-Equipped Vehicle....................... 105
Airbag Off Switch....................................... 95
How Does an Airbag Restrain?.................. 93Airbag Systems (cont.)
Passenger Sensing System....................... 99
Servicing Your Airbag-Equipped Vehicle.... 104
What Makes an Airbag Inate?.................. 93
AM-FM Radio.............................................. 306
Antenna, Fixed Mast................................... 373
Antenna, XM™ Satellite Radio Antenna
System.................................................... 373
Anti-Lock Brake System.............................. 381
Anti-Lock Brake, System Warning Light....... 259
Appearance Care
Aluminum or Chrome-Plated Wheels........ 607
Care of Safety Belts................................ 604
Chemical Paint Spotting........................... 609
Cleaning Exterior Lamps/Lenses.............. 605
Cleaning the Inside of Your Vehicle.......... 601
Fabric/Carpet........................................... 602
Finish Care.............................................. 605
Finish Damage......................................... 608
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 604
Leather.................................................... 603
Sheet Metal Damage............................... 608
Tires........................................................ 608
Underbody Maintenance........................... 608
Vehicle Care/Appearance Materials.......... 609
Washing Your Vehicle.............................. 605
669

Appearance Care (cont.)
Weatherstrips........................................... 604
Windshield and Wiper Blades................... 606
Ashtray....................................................... 235
Audio System.............................................. 302
AM-FM Radio.......................................... 306
Audio Steering Wheel Controls................. 370
Care of Your CD and DVD Player............ 373
Care of Your CDs and DVDs................... 372
Fixed Mast Antenna................................. 373
Navigation/Radio System, see
Navigation Manual................................ 357
Radio with CD................................308, 314
Rear Seat Audio (RSA)............................ 368
Setting the Time...................................... 303
Theft-Deterrent Feature............................ 370
Understanding Radio Reception............... 371
XM™ Satellite Radio Antenna System...... 373
Audio System(s)
Radio with CD and DVD.......................... 324
Automatic Headlamp System....................... 225
Automatic Transmission
Fluid........................................................ 510
Operation................................................. 140
Auxiliary Roof Mounted Lamp Switch.......... 227B
Battery........................................................ 533
Electric Power Management..................... 229
Run-Down Protection............................... 230
Before Leaving on a Long Trip.................... 416
Brake
Emergencies............................................ 383
Parking.................................................... 164
Brakes........................................................ 529
System Warning Light.............................. 258
Braking....................................................... 380
Braking in Emergencies............................... 383
Break-In, New Vehicle................................. 134
Bulb Replacement....................................... 545
Center High-Mounted Stoplamp
(CHMSL) and Cargo Lamp................... 547
Halogen Bulbs......................................... 545
Headlamps............................................... 546
License Plate Lamps................................ 550
Pickup Box Identication and Fender
Marker Lamps...................................... 548
Replacement Bulbs.................................. 551
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps..................................... 548
Buying New Tires........................................ 572
670

C
Calibration..........................................171, 175
California Fuel............................................. 491
California Proposition 65 Warning................ 489
Canadian Owners........................................... 3
Capacities and Specications...................... 620
Carbon Monoxide..............124, 169, 420, 447
Care of
Safety Belts............................................. 604
Your CD and DVD Player........................ 373
Your CDs and DVDs................................ 372
Cargo Lamp................................................ 229
Cargo Management System........................ 201
CD, MP3 ............................................341, 347
Center Console Storage Area...................... 199
Center Front Passenger Position,
Safety Belts........................................ 37, 38
Center High-Mounted Stoplamp
(CHMSL) and Cargo Lamp...................... 547
Center Seat.................................................. 19
Chains, Tire................................................. 578
Charging System Light................................ 256
Check
Engine Light............................................ 262
Checking Things Under the Hood................ 498
Chemical Paint Spotting.............................. 609Child Restraints
Child Restraint Systems............................. 53
Infants and Young Children........................ 49
Lower Anchors and Tethers for
Children.................................................. 60
Older Children........................................... 46
Securing a Child Restraint in a Rear
Seat Position.......................................... 69
Securing a Child Restraint in the
Center Front Seat Position..................... 72
Securing a Child Restraint in the
Right Front Seat Position................. 72, 78
Securing a Child Restraint in the
Right Front Seat Position (Crew Cab)..... 83
Where to Put the Restraint........................ 57
Cigarette Lighter.......................................... 235
Cleaning
Aluminum or Chrome-Plated Wheels........ 607
Exterior Lamps/Lenses............................. 605
Fabric/Carpet........................................... 602
Finish Care.............................................. 605
Inside of Your Vehicle.............................. 601
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 604
Leather.................................................... 603
Tires........................................................ 608
Underbody Maintenance........................... 608
671