2007 CHEVROLET SILVERADO warning

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

Door (cont.)
Rear Door Security Locks........................ 122
Rear Doors.............................................. 123
Driver
Position, Safety Belt................................... 28
Driver Information Center (DIC)................... 269
DIC Operation and Displays............270, 277
DIC Vehicle Customization....................... 291
DIC Warnings and Messages................... 281
Driving
At Night................................................... 409
City.......................................................... 414
Defensive................................................. 376
Drunken................................................... 377
Freeway................................................... 415
Hill and Mountain Roads.......................... 418
In Rain and on Wet Roads...................... 410
Off-Road.................................................. 392
Recovery Hooks....................................... 426
Rocking Your Vehicle to Get it Out.......... 425
Winter...................................................... 420
Dual Automatic Climate Control System....... 240
Dual Tire Operation..................................... 562
DVD
Rear Seat Entertainment System............. 357E
Electrical System
Add-On Equipment................................... 611
Center Instrument Panel Fuse Block........ 614
Fuses and Circuit Breakers...................... 612
Instrument Panel Fuse Block................... 612
Power Windows and Other Power
Options................................................. 611
Underhood Fuse Block............................. 615
Windshield Wiper Fuses........................... 611
Engine
Air Cleaner/Filter...................................... 507
Check and Service Engine Soon Light..... 262
Coolant.................................................... 514
Coolant Heater......................................... 138
Coolant Temperature Gage...................... 260
Drive Belt Routing.................................... 643
Engine Compartment Overview................ 500
Exhaust................................................... 169
Fan Noise................................................ 526
Oil ........................................................... 502
Oil Life System........................................ 505
Overheated Protection Operating Mode.... 520
Overheating............................................. 517
Starting.................................................... 136
673

Entry Lighting.............................................. 228
Event Data Recorders (EDR)...................... 659
Exit Lighting................................................ 228
Extender, Safety Belt..................................... 45
Exterior Lamps............................................ 223
F
Filter
Engine Air Cleaner................................... 507
Finish Damage............................................ 608
Fixed Mast Antenna.................................... 373
Flashers, Hazard Warning........................... 213
Flash-to-Pass.............................................. 216
Flat Tire...................................................... 579
Flat Tire, Changing...................................... 580
Flat Tire, Storing......................................... 596
Fluid
Automatic Transmission............................ 510
Power Steering........................................ 526
Windshield Washer.................................. 527
Fog Lamp
Fog .......................................................... 226
Fog Lamp Light........................................... 267
Four-Wheel Drive...............................149, 541
Four-Wheel-Drive Light................................ 267
Front Axle................................................... 543Fuel............................................................ 490
Additives.................................................. 492
California Fuel.......................................... 491
E85 (85% Ethanol)................................... 493
Filling a Portable Fuel Container.............. 497
Filling Your Tank...................................... 494
Fuels in Foreign Countries....................... 494
Gage....................................................... 268
Gasoline Octane...................................... 491
Gasoline Specications............................ 491
Low Warning Light................................... 269
Fuses
Center Instrument Panel Fuse Block........ 614
Fuses and Circuit Breakers...................... 612
Instrument Panel Fuse Block................... 612
Underhood Fuse Block............................. 615
Windshield Wiper..................................... 611
G
Gage
Engine Coolant Temperature.................... 260
Fuel......................................................... 268
Oil Pressure............................................. 265
Speedometer........................................... 250
674