traction control CHEVROLET EPICA 2004 1.G User Guide

Driving on Snow or Ice
Most of the time, those places where your tires meet
the road probably have good traction.
However, if there is snow or ice between your tires and
the road, you can have a very slippery situation. You
will have a lot less traction or “grip” and will need to be
very careful.What is the worst time for this? “Wet ice.” Very cold
snow or ice can be slick and hard to drive on. But wet
ice can be even more trouble because it may offer
the least traction of all. You can get wet ice when it is
about freezing (32°F; 0°C) and freezing rain begins
to fall. Try to avoid driving on wet ice until salt and sand
crews can get there.
Whatever the condition — smooth ice, packed, blowing
or loose snow — drive with caution.
Keep your traction control system on. It improves your
ability to accelerate when driving on a slippery road.
Even though your vehicle has a traction control system,
you will want to slow down and adjust your driving to
the road conditions. SeeTraction Control System (TCS)
on page 4-8.
4-25

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
selection width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system developed
by the Unites 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.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course.
For example, a tire graded 150 would wear one and
a half (1
1⁄2) 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 significantly 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 specified 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.
5-57

J
Jump Starting.................................................5-36
K
Key Lock Cylinders Service..............................6-19
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
LLamps
Exterior......................................................3-13
Interior.......................................................3-15
Lamps On Reminder.......................................3-14
Lap-Shoulder Belt...................................1-16, 1-25
LATCH System
Child Restraints...........................................1-40
Securing a Child Restraint Designed for
the LATCH System...................................1-43
Leaving Your Vehicle.......................................2-11
Leaving Your Vehicle With the Engine Running . . . 2-27
Light
Air Bag Readiness.......................................3-33
Anti-Lock Brake System Warning...................3-36
Brake System Warning.................................3-35Light (cont.)
Charging System.........................................3-34
Cruise Control.............................................3-43
Daytime Running Lamps Indicator..................3-44
Door Ajar...................................................3-47
Highbeam On.............................................3-43
Hold Mode.................................................3-38
Low Fuel Warning.......................................3-45
Malfunction Indicator....................................3-39
Oil Pressure...............................................3-42
Safety Belt Reminder...................................3-33
Safety Belt Reminder Tone...........................3-33
Speed Sensitive Power Steering (SSPS)
Warning Light..........................................3-36
TCS Warning Light......................................3-37
Traction Control System Active......................3-38
Traction Control System (TCS) Warning..........3-37
Trunk Ajar..................................................3-47
Loading Your Vehicle.......................................4-31
Lockout Protection..........................................2-10
Locks
Central Door Unlocking System....................... 2-8
Door........................................................... 2-7
Leaving Your Vehicle....................................2-11
Lockout Protection.......................................2-10
Power Door.................................................. 2-9
Rear Door Security Locks.............................2-10
8

T
Tachometer....................................................3-32
Taillamps
Turn Signal, Stoplamps and Back-up Lamps......5-46
TCS Active Light.............................................3-38
TCS Warning Light..........................................3-37
Theft-Deterrent, Radio.....................................3-58
Theft-Deterrent System....................................2-15
Theft-Deterrent Systems...................................2-15
Immobilizer.................................................2-17
Immobilizer Operation...................................2-17
Throttle System Inspection...............................6-23
Tilt Wheel........................................................ 3-7
Tire Inflation Check.........................................6-18
Tire Sidewall Labeling......................................5-48
Tire Size.......................................................5-50
Tire Terminology and Definitions........................5-50
Tires.............................................................5-48
Buying New Tires........................................5-56
Chains.......................................................5-60
Changing a Flat Tire....................................5-62
If a Tire Goes Flat.......................................5-61
Inflation - Tire Pressure................................5-53
Inspection and Rotation................................5-54
Spare Tire..................................................5-68
Uniform Tire Quality Grading.........................5-57
Wheel Alignment and Tire Balance.................5-58Tires (cont.)
Wheel Replacement.....................................5-59
When It Is Time for New Tires......................5-55
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-37
Top Strap Anchor Location...............................1-39
Torque Lock...................................................2-28
Towing
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-29
Traction
Control System Active Light..........................3-38
Control System (TCS).................................... 4-8
Control System Warning Light.......................3-37
Transaxle
Fluid, Automatic...........................................5-19
Transaxle Operation, Automatic.........................2-22
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-12
Transportation Options...................................... 7-8
Trip Odometer................................................3-32
Trunk............................................................2-11
Trunk Ajar Light..............................................3-47
Trunk Lamp...................................................3-16
Trunk-Mounted CD Changer.............................3-55
Turn and Lane-Change Signals.......................... 3-8
Turn Signal/Multifunction Lever........................... 3-7
14