2004 Pontiac Sunfire Owner's Manual - Page 193

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 prefer. To turn the system on or off, press the top of the ETS button on the left side of the instrument panel near the instrument panel brightness control. When you turn 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 will not turn off right away. It will wait until there is no longer a current need to limit wheel spin. You can turn the system back on at any time by pressing the button again. The Enhanced Traction System warning light should go off. 4-11