1999 Buick Regal Owner's Manual - Page 175

yellowblue The Traction Control System operates in all transaxle shift lever positions. But the system can upshift the transaxle only as high as the shift lever position you've chosen, so you should use the lower gears only when necessary. See "Automatic Transaxle" in the Index. When the system is on, this warning light will come on to let you know if there's a problem. To turn the system on or off, press the TRACTION button on the black panel located directly behind your automatic transaxle shift lever. See "Traction Control System Warning Light" in the Index. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. To limit wheel spin, especially in slippery road conditions, you should always leave the Traction Control System on. But you can turn the system off if you ever need to. (You should turn the system off if your vehicle ever gets stuck in sand, mud, ice or snow. See "Rocking Your Vehicle" in the Index.) When you turn the system off, the Traction Control System warning light will come on and stay on. If the Traction Control System is limiting wheel spin when you press the button to turn the system off, the warning light will come on and the system will turn off right away. You can turn the system back on at any time by pressing the button again. The Traction Control System warning light should go off. 4-11