My traction light on but donot work

The Enhanced
Traction System
warning light may
come on for the
following reasons:


If you turn the system off by shifting to SECOND (2)
or FIRST (1), the warning light will come on and stay
on. To turn the system back on, shift to THIRD (3) or
AUTOMATIC OVERDRIVE (
). See “Enhanced
Traction System” in the Index.


If the Enhanced Traction System warning light
comes on and stays on for an extended period of
time when the system is turned on, your vehicle
needs service. Adjust your driving accordingly.


The warning light will come on when you set your
parking brake with the engine running, and it will
stay on if your parking brake doesn’t release fully.
If the transaxle shift lever is in any position other
than FIRST (1) or SECOND (2) and the warning
light stays on after your parking brake is fully
released, it means there’s a problem with the system.


If the traction control system is affected by an
engine-related problem, the system will turn off
and the warning light will come on.

bad sensor

The Passlock system temporarily lost contact with the key

why does traction control and stabilitrak light stay on on my 2010 chev impala

It is safe to drive. You need a scan tool to get a code out of it. Could be as simple as a wheel speed sensor going bad. All of these lights will work together normally. The traction control uses the ABS to gain traction, and the Brake Assist System is part of the stability control. Also uses the ABS.

You either have a problem with your engine control system, the traction control system, or you are not in the correct gear. See the explaination below. This is from the 2000 Chevrolet Cavalier Owner's Manual.

TRAC-OFF LIGHT

... If you turn the system off by moving the shift lever

to FIRST (1) or SECOND (2), the warning light will

come on and stay on. To turn the system back on,

move the shift lever back to a position other than

FIRST (1) or SECOND (2). The warning light

should go off. (See "Enhanced Traction System"

in the Index for more information.)

The warning light will come on when you set your

parking brake with the engine running, and it will

stay on if your parking brake doesn't release fully.

If the transaxle shift lever is in any position other

than FIRST (1) or SECOND (2) and the warning

light stays on after your parking brake is fully

released, it means there's a problem with the system.

If the traction control system is affected by an

engine-related problem, the system will turn off

and the warning light will come on.

If the Enhanced Traction System warning light comes

on and stays on for an extended period of time when the

transaxle shift lever is in any position other than FIRST
(1) or SECOND (2) your vehicle needs service.

When your ABS light is on continuously it is telling you there is a problem in the system.
As long as the light is on it shuts down the ABS system and the traction control along with it. The two systems work hand in hand with one another so if one part of it has a problem the other cannot continue.
What I see in my shop most of the time is a broken wire harness to the wheel speed sensors or a speed sensor itself.
The easiest way to find it is to use a scan tool to determine which wheel sensor is causing the problem, then using an ohm meter check the resistance value of the sensor. Most are around 1000 ohms.

had my 2000 chev impala 3.8 liter ,traction control llight and abs light both go on the reset it and go right back on .so i replaced both sides of the bearing hub assembly this is connected the senser,so far so good.replaced it dec 21 2009 about 3 hours ago. because the assembly came appart when took off.

The Enhanced Traction System warning light may come on for the following reasons:

If you turn the system off by shifting to SECOND (2) or FIRST (1), the warning light will come on and stay on. To turn the system back on,shift to THIRD (3) or AUTOMATIC OVERDRIVE

If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on.

If the Enhanced Traction System warning lightmcomes on and stays on for an extended period of time when the system is turned on, your vehicle needs service. Adjust your driving accordingly..

The traction control system is controlled through the Anti-lock brake system. The way it works is if one of your wheels starts spinning the ABS applys the brake to that wheel to transfer power to the oppsite wheel that is getting traction. If your ABS is bad then your Traction control won't work. To check it I would find a parking lot on a wet day. In an open space mash in the gas. if you hear the ABS system kick in and you don't squall the tires then your good. My guess is you won't. What I would be worried about is will my ABS work. When checking the traction control is a good time to check the ABS. Acclerate to around 15 mph, then mash the brake as your live depended on it. If you hear a motor run and feel a vibration or grind in the brake peddal, then it works.