1997 Pontiac Grand Am Owner's Manual - Page 161

ETS OFF When the system is on and the parking brake is fully released, this warning light will come on to let you know if there's a problem with the system. See "Enhanced Traction System Warning Light" in the Index. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. To turn the system on or off, press the button on the shift lever knob. To limit wheel spin, especially in slippery road conditions, you should always leave the Enhanced Traction 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 youturn the system off, the Enhanced Traction System warning light will come on and stay on. If the Enhanced Traction System is limiting wheel spin when you press the button 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 longer a current need to limit wheel spin. You can turnthe system back on at any time by pressing the button again. The Enhanced Traction System warning light should go off. 4-10