GM Service Manual Online
For 1990-2009 cars only

If the vehicle has the 3800 V6 engine and anti-lock brakes, it may have an Enhanced Traction System (ETS) that limits wheel spin. This is especially useful in slippery road conditions. The system operates only if it senses that one or both of the front wheels are spinning or beginning to lose traction. When this happens, the system reduces engine power and may also upshift the transaxle to limit wheel spin.


Object Number: 923194  Size: A1

This symbol comes on the Driver Information Center (DIC) when the ETS is limiting wheel spin.

If the vehicle is in cruise control when ETS begins to limit wheel spin, the cruise control will automatically disengage. When road conditions allow safe use of it, the cruise control can be used again. See Cruise Control .

ETS operates in all transaxle shift lever positions. But the system can upshift the transaxle only as high as the chosen shift lever position, so use the lower gears only when necessary. See Automatic Transaxle Operation .


Object Number: 900988  Size: A1

This warning light appears on the instrument panel to indicate that the ETS is not on.


Object Number: 923161  Size: A1

This symbol, along with the message TRACTION CONTROL OFF will display on the DIC for three seconds when the ETS is not on.

If there is a problem with the system, the service traction system will also come on in the DIC. See Enhanced Traction System Warning Light . When this warning light is on, the system will not limit wheel spin. Adjust driving accordingly.

To limit wheel spin, especially in slippery road conditions, the ETS should always be left on. But the system can be turned off. The system should be turned off if the vehicle ever gets stuck in sand, mud, or snow and rocking the vehicle is required. See "Rocking Your Vehicle To Get It Out" under If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow .


Object Number: 905795  Size: A2

Press the traction control button located on the console to turn the system off.

If the system is limiting wheel spin when the button is pressed, the system will turn off instantly. Press the traction control button again to turn the system on.