warning GMC SIERRA CLASSIC 2007 Workshop Manual

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.
559

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 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.
Your dealer will know the kind of wheel you need.
560

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 212for 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 an automatic transmission shift
lever in PARK (P), or shift a manual
transmission to FIRST (1) or
REVERSE (R).
CAUTION: (Continued)
564

A
Accessories and Modications..................... 468
Accessory Power Outlet(s).......................... 228
Adding a Snow Plow or Similar
Equipment................................................ 416
Adding Equipment to Your Airbag-Equipped
Vehicle..................................................... 109
Additives, Fuel............................................ 472
Add-On Electrical Equipment....................... 599
Air Cleaner/Filter, Engine............................. 491
Air Conditioning.........................230, 231, 235
Airbag
Off Light.................................................. 248
Passenger Status Indicator....................... 250
Readiness Light....................................... 247
Airbag Sensing and Diagnostic
Module (SDM).......................................... 650
Airbag System............................................... 91
Adding Equipment to Your
Airbag-Equipped Vehicle....................... 109
Airbag Off Switch..................................... 100
How Does an Airbag Restrain?.................. 98
Passenger Sensing System...................... 103
Servicing Your Airbag-Equipped Vehicle.... 108
What Makes an Airbag Inate?.................. 97Airbag System (cont.)
What Will You See After an Airbag
Inates?................................................. 98
When Should an Airbag Inate?................. 95
Where Are the Airbags?............................. 93
AM-FM Radio.............................................. 291
Antenna, Fixed Mast................................... 353
Antenna, XM™ Satellite Radio
Antenna System....................................... 353
Anti-Lock Brake System (ABS).................... 361
Anti-Lock Brake, System Warning Light....... 255
Appearance Care
Aluminum or Chrome-Plated Wheels........ 594
Care of Safety Belts................................ 592
Chemical Paint Spotting........................... 596
Cleaning Exterior Lamps/Lenses.............. 593
Cleaning the Inside of Your Vehicle.......... 589
Fabric/Carpet........................................... 590
Finish Care.............................................. 593
Finish Damage......................................... 596
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 591
Leather.................................................... 591
Sheet Metal Damage............................... 595
Tires........................................................ 595
Underbody Maintenance........................... 596
Vehicle Care/Appearance Materials.......... 597
659

Appearance Care (cont.)
Washing Your Vehicle.............................. 592
Weatherstrips........................................... 592
Windshield and Wiper Blades................... 594
Ashtray(s).................................................... 229
Audio System(s).......................................... 289
AM-FM Radio.......................................... 291
Audio Steering Wheel Controls................. 349
Care of Your Cassette Tape Player.......... 350
Care of Your CD and DVD Player............ 352
Care of Your CDs and DVDs................... 352
Chime Level Adjustment........................... 353
Fixed Mast Antenna................................. 353
Radio with Cassette and CD.................... 304
Radio with CD......................................... 294
Radio with Six-Disc CD............................ 318
Rear Seat Audio (RSA)............................ 347
Setting the Time for Radios with
Radio Data Systems (RDS).................. 291
Setting the Time for Radios without
Radio Data Systems (RDS).................. 290
Theft-Deterrent Feature............................ 348
Understanding Radio Reception............... 350
XM™ Satellite Radio Antenna System...... 353
Automatic Headlamp System....................... 223Automatic Transmission
Fluid...............................................494, 497
Operation................................................. 140
Auxiliary Roof Mounted Lamp Switch.......... 226
B
Battery........................................................ 520
Battery Warning Light.................................. 253
Before Leaving on a Long Trip.................... 398
Brake
Anti-Lock Brake System (ABS)................. 361
Emergencies............................................ 363
Parking.................................................... 169
System Warning Light.............................. 254
Brakes........................................................ 517
Braking....................................................... 360
Braking in Emergencies............................... 363
Break-In, New Vehicle................................. 134
Bulb Replacement....................................... 532
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.................................. 537
Front Turn Signal, Sidemarker and
Daytime Running Lamps....................... 534
Halogen Bulbs......................................... 532
660

Bulb Replacement (cont.)
Headlamps............................................... 533
License Plate Lamps................................ 541
Pickup Box Identication and Fender
Marker Lamps...................................... 538
Replacement Bulbs.................................. 541
Roof Marker Lamps................................. 535
Taillamps, Turn Signal, Stoplamps
and Back-up Lamps.............................. 539
Buying New Tires........................................ 556
C
Calibration..........................................176, 180
California Fuel............................................. 471
California Proposition 65 Warning................ 469
Canadian Owners........................................... 3
Capacities and Specications...................... 609
Carbon Monoxide..............127, 174, 402, 429
Care of
Safety Belts............................................. 592
Your Cassette Tape Player....................... 350
Your CD and DVD Player........................ 352
Your CDs and DVDs................................ 352
Cargo Lamp................................................ 228
Center Console Storage Area...................... 202Center Front Passenger Position,
Safety Belts............................................... 37
Center High-Mounted Stoplamp
(CHMSL) and Cargo Lamp...................... 537
Chains, Tire................................................. 562
Check
Engine Light............................................ 258
Checking Things Under the Hood ................ 478
Chemical Paint Spotting .............................. 596
Child Restraints
Child Restraint Systems............................. 51
Infants and Young Children........................ 47
Lower Anchors and Tethers
for Children............................................ 58
Older Children........................................... 44
Securing a Child Restraint in a
Rear Seat Position................................. 71
Securing a Child Restraint in the
Center Front Seat Position..................... 74
Securing a Child Restraint in the Right
Front Seat Position (Crew Cab).............. 74
Securing a Child Restraint in the Right
Front Seat Position (Regular and
Extended Cab)................................ 78, 85
Where to Put the Restraint........................ 55
Chime Level Adjustment .............................. 353
661

D
Daytime Running Lamps............................. 222
Defensive Driving........................................ 356
Delayed Locking.......................................... 122
Doing Your Own Service Work.................... 469
Dome Lamp Override.................................. 227
Dome Lamps............................................... 226
Door
Delayed Locking...................................... 122
Locks....................................................... 120
Power Door Locks................................... 121
Programmable Automatic Door Locks....... 123
Rear Door Security Locks........................ 126
Rear Doors.............................................. 126
Driver
Position, Safety Belt................................... 27
Driver Information Center (DIC)................... 265
DIC Operation and Displays..................... 266
DIC Vehicle Customization....................... 282
DIC Warnings and Messages................... 270
Driving
At Night................................................... 391
City.......................................................... 396
Defensive................................................. 356
Drunken................................................... 357
Freeway................................................... 397Driving (cont.)
Hill and Mountain Roads.......................... 400
In Rain and on Wet Roads...................... 392
Off-Road.................................................. 372
Recovery Hooks....................................... 408
Rocking Your Vehicle to Get it Out.......... 407
Winter...................................................... 402
Dual Automatic Climate Control System....... 235
Dual Climate Control System....................... 231
Dual Tire Operation..................................... 552
DVD
Rear Seat Entertainment System............. 334
E
Electrical System
Add-On Equipment................................... 599
Center Instrument Panel Fuse Block........ 602
Fuses and Circuit Breakers...................... 600
Instrument Panel Fuse Block................... 600
Power Windows and Other Power
Options................................................. 599
Underhood Fuse Block............................. 603
Windshield Wiper Fuses........................... 599
Engine
Air Cleaner/Filter...................................... 491
Battery..................................................... 520
663

Engine (cont.)
Check and Service Engine Soon Light..... 258
Coolant.................................................... 502
Coolant Heater......................................... 139
Coolant Temperature Gage...................... 256
Drive Belt Routing.................................... 633
Engine Compartment Overview................ 480
Exhaust................................................... 174
Fan Noise................................................ 514
Oil ........................................................... 486
Oil Life System........................................ 489
Overheated Protection Operating Mode.... 508
Overheating............................................. 505
Starting.................................................... 137
Entry Lighting.............................................. 227
Event Data Recorders (EDR)...................... 650
Exit Lighting................................................ 227
Extender, Safety Belt..................................... 43
F
Filter
Engine Air Cleaner................................... 491
Finish Damage............................................ 596
Fixed Mast Antenna.................................... 353
Flashers, Hazard Warning........................... 212Flash-to-Pass.............................................. 216
Flat Tire...................................................... 563
Flat Tire, Changing...................................... 564
Flat Tire, Storing......................................... 584
Fluid
Automatic Transmission...................494, 497
Manual Transmission................................ 500
Power Steering........................................ 515
Windshield Washer.................................. 516
Fog Lamps.................................................. 225
Four-Wheel Drive...............................153, 528
Four-Wheel-Drive Light................................ 263
Front Axle................................................... 529
Front Reading Lamps.................................. 227
Front Storage Area...................................... 202
Fuel............................................................ 470
Additives.................................................. 472
California Fuel.......................................... 471
E85 (85% Ethanol)................................... 473
Filling a Portable Fuel Container.............. 477
Filling Your Tank...................................... 474
Fuels in Foreign Countries....................... 474
Gage....................................................... 264
Gasoline Octane...................................... 470
Gasoline Specications............................ 471
Low Warning Light................................... 265
664

Fuses
Center Instrument Panel Fuse Block........ 602
Fuses and Circuit Breakers...................... 600
Instrument Panel Fuse Block................... 600
Underhood Fuse Block............................. 603
Windshield Wiper..................................... 599
G
Gage
Engine Coolant Temperature.................... 256
Fuel......................................................... 264
Oil Pressure............................................. 262
Speedometer........................................... 246
Tachometer.............................................. 246
Transmission Temperature........................ 257
Voltmeter Gage........................................ 253
Garage Door Opener..........................191, 192
Gasoline
Octane..................................................... 470
Specications........................................... 471
Glove Box................................................... 202
GM Mobility Reimbursement Program.......... 643
H
Hazard Warning Flashers............................ 212
Head Restraints............................................ 18
Headlamps.........................................221, 533
Automatic Headlamp System.................... 223
Bulb Replacement.................................... 532
Daytime Running Lamps.......................... 222
Flash-to-Pass........................................... 216
Front Turn Signal, Sidemarker and
Daytime Running Lamps....................... 534
Halogen Bulbs......................................... 532
High/Low Beam Changer......................... 215
On Reminder........................................... 222
Pickup Box Identication and Fender
Marker Lamps...................................... 538
Roof Marker Lamps................................. 535
Heated Seats................................................ 11
Heater................................................230, 231
Heater......................................................... 235
Highbeam On Light..................................... 263
Highway Hypnosis....................................... 399
Hill and Mountain Roads............................. 400
Hood
Checking Things Under............................ 478
Release................................................... 479
665

Horn............................................................ 213
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 27
Hydraulic Clutch.......................................... 501
I
Ignition Positions......................................... 135
Infants and Young Children, Restraints.......... 47
Ination - Tire Pressure............................... 551
Instrument Panel
Overview.................................................. 210
Instrument Panel (I/P)
Brightness................................................ 226
Cluster..................................................... 245
J
Jump Starting.............................................. 521
K
Keyless Entry System................................. 116
Keys........................................................... 115
L
Labeling, Tire Sidewall................................. 544
Lamps
Auxiliary Roof Mounted Lamp.................. 226
Cargo...................................................... 228
Dome....................................................... 226
Dome Lamp Override............................... 227
Fog .......................................................... 225
Front Reading.......................................... 227
LATCH System
Child Restraints......................................... 58
Latches, Seatback......................................... 18
License Plate Lamps................................... 541
Light
Airbag Off................................................ 248
Airbag Readiness..................................... 247
Anti-Lock Brake System Warning............. 255
Battery Warning....................................... 253
Brake System Warning............................. 254
Cruise Control.......................................... 263
Four-Wheel-Drive..................................... 263
Highbeam On.......................................... 263
Low Fuel Warning.................................... 265
Malfunction Indicator................................ 258
666