traction control CHEVROLET IMPALA 2005 8.G Owner's 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, 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 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.
5-73

Tire Chains
{CAUTION:
If your vehicle has P235/55R17 size tires, do not
use tire chains, there is not enough clearance.
Tire chains used on a vehicle without the proper
amount of clearance can cause damage to the
brakes, suspension or other vehicle parts.
The area damaged by the tire chains could
cause you to lose control of your vehicle and
you or others may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it is contacting your vehicle, and do
not spin your wheels.
If you do nd traction devices that will t, install
them on the front tires.Notice:If your vehicle has a tire size other than
P235/55R17 size tires, use tire chains only where
legal and only when you must. Use only SAE Class
″S″type chains that are the proper size for your
tires. Install them on the front tires and tighten them
as tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until
it stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.
5-76

I
Ignition Positions.............................................2-16
Infants and Young Children, Restraints...............1-31
Ination -- Tire Pressure..................................5-66
Instrument Panel
Overview..................................................... 3-4
Instrument Panel (I/P)
Brightness..................................................3-17
Cluster.......................................................3-27
J
Jump Starting.................................................5-49
K
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
L
Labelling, Tire Sidewall....................................5-61
Lamps
Battery Run-Down Protection.........................3-19
Courtesy....................................................3-17
Dome........................................................3-17Lamps (cont.)
Exterior......................................................3-14
Fog ...........................................................3-16
Reading.....................................................3-18
LATCH System
Child Restraints...........................................1-42
Securing a Child Restraint Designed for
the LATCH System...................................1-44
Light
Airbag Readiness........................................3-31
Anti-Lock Brake System Warning...................3-33
Brake System Warning.................................3-32
Cruise Control.............................................3-38
Highbeam On.............................................3-38
Malfunction Indicator....................................3-35
Safety Belt Reminder...................................3-30
TCS Warning Light......................................3-33
Traction Control System (TCS) Warning..........3-33
Lighting
Delayed Entry.............................................3-18
Delayed Exit...............................................3-18
Entry.........................................................3-17
Parade Dimming..........................................3-18
Loading Your Vehicle.......................................4-30
Lockout Protection..........................................2-10
7

Locks
Door........................................................... 2-8
Lockout Protection.......................................2-10
Power Door.................................................. 2-9
Programmable Automatic Door Locks............... 2-9
Loss of Control...............................................4-15
Low Brake Fluid Warning Message....................3-47
Low Engine Oil Level Message.........................3-43
Low Fuel Warning Message.............................3-47
Low Oil Pressure Message...............................3-42
Low Tire Message..........................................3-44
Low Washer Fluid Warning Message.................3-46
Lumbar
Manual Controls............................................ 1-3
M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-14
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-13Maintenance Schedule (cont.)
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using.......................................................... 6-2
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-35
Manual Lumbar Controls.................................... 1-3
Manual Seats................................................... 1-2
Message
Battery Warning..........................................3-41
Center.......................................................3-40
Change Engine Oil......................................3-44
Door Ajar Warning.......................................3-45
Highbeam Out Warning................................3-48
Hot Coolant Temperature Warning..................3-42
Low Brake Fluid Warning..............................3-47
Low Engine Oil Level...................................3-43
Low Fuel Warning.......................................3-47
Low Oil Pressure.........................................3-42
Low Tire .....................................................3-44
Low Washer Fluid Warning...........................3-46
Security.....................................................3-46
Service Traction System Warning...................3-40
Service Vehicle Soon...................................3-48
Traction Active............................................3-41
Trunk Ajar Warning......................................3-45
8

Tires (cont.)
Pressure Monitor System..............................5-68
Removing the Flat Tire.................................5-80
Removing the Spare Tire and Tools...............5-79
Storing a Flat or Spare Tire and Tools............5-86
Tire Sidewall Labelling..................................5-61
Tire Terminology and Denitions....................5-64
Uniform Tire Quality Grading.........................5-73
Wheel Alignment and Tire Balance.................5-74
Wheel Replacement.....................................5-74
When It Is Time for New Tires......................5-71
Top Strap......................................................1-40
Top Strap Anchor Location...............................1-41
Towing
Recreational Vehicle.....................................4-35
Towing a Trailer..........................................4-37
Your Vehicle...............................................4-35
Traction
Active Message...........................................3-41
Control System (TCS).................................... 4-9
Control System Warning Light.......................3-33
Service Traction System Warning Message.......3-40
Transaxle
Fluid, Automatic...........................................5-26
Transaxle Operation, Automatic.........................2-20
Trip Computer................................................3-51
Trip Odometer................................................3-30Trunk............................................................2-10
Trunk Ajar Warning Message............................3-45
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
U
Understanding Radio Reception........................3-88
Uniform Tire Quality Grading............................5-73
V
Vehicle
Control........................................................ 4-6
Customization Settings.................................3-91
Damage Warnings........................................... iv
Loading......................................................4-30
Service Soon Message.................................3-48
Symbols......................................................... iv
Vehicle Data Collection and Event
Data Recorders............................................. 7-9
Vehicle Identication
Number (VIN).............................................5-98
Service Parts Identication Label...................5-98
Vehicle Personalization....................................2-38
Ventilation Adjustment......................................3-24
Visors...........................................................2-13
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