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, 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
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 speci ed 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 signi cantly 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 speci ed 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.
5-68
Fuses Usage
01 Right Door Control Module
02 Left Door Control Module
03 Liftgate Module 2
04 Truck Body Controller 3
05 Rear Fog Lamps
06 Blank
07 Truck Body Controller 2
08 Power Seats
09 Rear Wiper
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Rear Climate Controls
14 Left Rear Parking Lamps
15 Blank
16Vehicle Center High-Mounted
Stop LampFuses Usage
17 Right Rear Parking Lamps
18 Locks
19Liftgate Module/Driver Seat
Module
20 Sunroof
21 Lock
23 Blank
24 Unlock
25 Blank
26 Blank
27 OH Battery/OnStar
®System
29 Rainsense™ Wipers
30 Parking Lamps
31 Truck Body Controller Accessory
32 Truck Body Controller 5
33 Front Wipers
34 Vehicle Stop
5-105
Fuses Usage
01 Right Door Control Module
02 Left Door Control Module
03 Liftgate Module 2
04 Truck Body Controller 3
05 Rear Fog Lamps
06 Blank
07 Truck Body Controller 2
08 Power Seats
09 Rear Wiper
10 Driver Door Module
11 Ampli er
12 Passenger Door Module
13 Rear Climate Controls
14 Left Rear Parking Lamps
15 Blank
16Vehicle Center High-Mounted
Stop Lamp
17 Right Rear Parking Lamps
Envoy XL
5-107
Cassette Tape Messages.................................3-88
CD Adapter Kits.............................................3-88
CD Messages...............................3-76, 3-91, 3-105
Chains, Tires..................................................5-71
Charging System Light....................................3-39
Check
Engine Light...............................................3-43
Gages Warning Light...................................3-49
CHECK WASHER FLUID.................................3-62
Checking Brake Fluid......................................5-40
Checking Coolant............................................5-26
Checking Engine Oil........................................5-16
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-94
Child Restraints
Child Restraint Systems...............................1-33
Infants and Young Children...........................1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-40
Older Children.............................................1-27
Securing a Child Restraint Designed for
the LATCH System...................................1-42
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-43
Securing a Child Restraint in the Center
Seat Position...........................................1-45
Securing a Child Restraint in the Right
Front Seat Position...................................1-46Child Restraints (cont.)
Top Strap...................................................1-37
Top Strap Anchor Location............................1-39
Where to Put the Restraint...........................1-36
Chime Level Adjustment.................................3-122
Cigarette Lighter.............................................3-21
Cleaning
Inside of Your Vehicle..................................5-88
Outside of Your Vehicle................................5-91
Underbody Maintenance...............................5-94
Weatherstrips..............................................5-91
Cleaning Aluminum Wheels..............................5-93
Cleaning Exterior Lamps/Lenses.......................5-91
Cleaning Fabric/Carpet....................................5-88
Cleaning Glass Surfaces..................................5-90
Cleaning Interior Plastic Components.................5-90
Cleaning Leather............................................5-90
Cleaning the Top of the Instrument Panel...........5-90
Cleaning the Video Screen.............................3-117
Cleaning the Windshield, Backglass and
Wiper Blades..............................................5-92
Cleaning Tires................................................5-93
Cleaning Vinyl................................................5-90
Climate Control System
Climate Controls Personalization....................3-34
Dual..........................................................3-22
Dual Automatic............................................3-25
Rear..........................................................3-31
3
Driving (cont.)
Hill and Mountain Roads..............................4-38
In Rain and on Wet Roads...........................4-31
Winter........................................................4-40
Driving Across an Incline..................................4-26
Driving Downhill..............................................4-24
Driving in Mud, Sand, Snow or Ice....................4-28
Driving in Water..............................................4-28
Driving On Grades..........................................4-63
Driving on Off-Road Hills.................................4-21
Driving on Snow or Ice....................................4-41
Driving Through Deep Standing Water...............4-33
Driving Through Flowing Water.........................4-33
Driving Uphill..................................................4-22
Driving with a Trailer.......................................4-61
Dual Automatic Climate Control System.............3-25
Dual Climate Control System............................3-22
DVD
Rear Seat Entertainment System..................3-106
DVD Distortion..............................................3-117
DVD Messages.............................................3-117
DVD Player..................................................3-110
E
Electrical System
Add-On Equipment......................................5-96
Fuses and Circuit Breakers...........................5-97
Headlamps.................................................5-96Electrical System (cont.)
Power Windows and Other Power Options......5-96
Windshield Wiper Fuses...............................5-96
Electronically Controlled Air Suspension
System......................................................4-54
Emergency Release for Opening Liftgate............2-14
Emissions Inspection and Maintenance
Programs...................................................3-45
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-42
Change Engine Oil Light...............................3-47
Check and Service Engine Soon Light............3-43
Coolant......................................................5-24
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-42
Drive Belt Routing.......................................6-16
Engine Compartment Overview......................5-12
Exhaust.....................................................2-34
Fan Noise..................................................5-36
Oil .............................................................5-16
Overheating................................................5-28
Reduced Power Light...................................3-48
Starting......................................................2-21
Engine Compartment Fuse Block......................5-97
ENGINE COOLANT HOT/ENGINE
OVERHEATED............................................3-61
Engine Oil Additives........................................5-19
Entry Lighting.................................................3-19
Environmental Concerns..................................4-18
5
OOdometer......................................................3-37
Off-Road Recovery..........................................4-13
Oil
Change Engine Oil Light...............................3-47
Engine.......................................................5-16
Pressure Gage............................................3-46
OIL PRESSURE LOW/STOP
ENGINE.....................................................3-61
Older Children, Restraints................................1-27
Online Owner Center........................................ 7-4
OnStar
®Personal Calling.................................2-41
OnStar®Services............................................2-40
OnStar®System.............................................2-40
OnStar®Virtual Advisor....................................2-41
Operating Your All-Wheel-Drive Vehicle
Off Paved Roads.........................................4-16
Other Warning Devices...................................... 3-6
Outlet Adjustment...................................3-24, 3-30
Outside
Convex Mirror.............................................2-39
Curb View Assist Mirrors..............................2-39
Heated Mirrors............................................2-39
Manual Mirrors............................................2-38
Power Mirrors.............................................2-38
Overhead Console..........................................2-46
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
Owner’s Information........................................7-13
PParental Control............................................3-106
Park (P)
Shifting Into................................................2-31
Shifting Out of............................................2-33
Parking
Brake........................................................2-29
Over Things That Burn.................................2-33
Parking on Hills..............................................4-64
PASSENGER DOOR AJAR..............................3-62
Passing.................................................4-13, 4-62
Passlock
®......................................................2-19
Personalization...............................................3-54
Personalization, Climate Controls......................3-34
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape..................................3-86
Playing a CD...............................3-74, 3-88, 3-100
Playing a Speci c Loaded CD.........................3-101
Playing the Radio...........................3-66, 3-77, 3-93
Power
Accessory Outlets........................................3-21
Door Locks.................................................. 2-9
Electrical System.........................................5-96
Lumbar Controls........................................... 1-2
Reclining Seatbacks...................................... 1-4
Reduced Engine Light..................................3-48
Seat............................................................ 1-2
Steering Fluid.............................................5-37
Windows....................................................2-16
10
Power Steering...............................................4-11
Programmable Automatic Door Locks.................2-10
Programmable Locking Feature.........................2-11
Programmable Unlocking Feature......................2-12
Programming the HomeLink
®Transmitter...........2-43
Q
Questions and Answers About Safety Belts.........1-13
R
Radiator Pressure Cap....................................5-27
Radio Data System (RDS)...............3-65, 3-76, 3-92
Radio Messages.....................................3-71, 3-83
Radios..........................................................3-64
Care of Your Cassette Tape Player...............3-121
Care of Your CD and DVD Player................3-122
Care of Your CDs and DVDs.......................3-122
Navigation/Radio System.............................3-106
Radio Personalization.................................3-119
Radio with Cassette and CD.........................3-76
Radio with CD............................................3-65
Radio with Six-Disc CD................................3-92
Rear Seat Audio........................................3-117
Setting the Time..........................................3-64
Theft-Deterrent..........................................3-119
Understanding Reception............................3-120Rainsense™ Wipers........................................3-10
RDS Messages..............................3-70, 3-82, 3-97
Reading Lamps..............................................3-20
REAR ACCESS OPEN....................................3-62
Rear Axle......................................................5-48
Locking......................................................4-11
Rear Climate Control System............................3-31
Rear Compartment Storage Panel/Cover............2-49
Rear Door Security Locks................................2-13
Rear Floor Storage Lid....................................2-51
Rear Safety Belt Comfort Guides......................1-24
Rear Seat Audio (RSA)..................................3-117
Rear Seat Entertainment System.....................3-106
Rear Seat Operation......................................... 1-5
Rear Seat Passenger Positions.........................1-21
Rear Seat Passengers, Safety Belts..................1-21
Rear Seats (Envoy XL)..................................... 1-7
Rear Storage Area..........................................2-49
Rear Underseat Fuse Block............................5-104
Rear Window Defogger............................3-24, 3-29
Rearview Mirror, Automatic Dimming
with OnStar
®and Compass..........................2-36
Reclining Seatbacks, Power............................... 1-4
Recommended Fluids and Lubricants.................6-13
Recreational Vehicle Towing.............................4-45
Reduced Engine Power Light............................3-48
Remote Control.............................................3-112
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
11