1997 Pontiac Grand Prix Owner's Manual - Page 204

I TRAC When the system is on and the parking brake is fully released, this warning light will come on to letyou know if there's a problem with the system. See "Trac System Warning Light" in the Index. To turn the systemon or off, press the TRACbutton on right end o f the on the far the Driver Information Center or the optional Trip Computer. When this warning light is on, thesystem will not limit wheel spin. Adjust your driving accordingly. To limit wheel spin, especially in slippery road conditions, you should always leave the Trac System on. But you can turn the system off if youever 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 Trac System warning light will come on and stay on. If the Trac System is limiting wheel spin when you press thebutton to turn the system off, the warning light will come on -- but the system won't turn off right away. It will wait until there's no longera current need to limit wheel spin. You can turn the system back on atany time by pressing the button again. The Trac System warning light should go off. 4-10