1997 Pontiac Grand Am Owner's Manual - Page 160

As you brake, your computer keeps receiving updates on wheel speed and controls braking pressure accordingly. Remember: Anti-lock doesn't change the time you need to get your foot up to the brake pedal or always decrease stopping distance. If you get too close to the vehicle in front of you, you won't have time to apply your brakes if that vehicle suddenly slows or stops. Alwaysleave enough room up ahead to stop, even though you have anti-lock brakes. LOW TRAC This light will come on when your Enhanced Traction System is limiting wheel spin. See "Enhanced Traction System Active Light" in the Index. You may feel or hear the system working, but this is normal. Using Anti-Lock The Enhanced Traction System operates in all transaxle Don't pump the brakes. Just hold the brake pedal down shift lever positions. But the system can upshift the and let anti-lock work for you. You may the system feel working, or you may notice some noise, but this is normal. 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. Enhanced Traction System(If Equipped) If your vehicle has the optional four-speed automatic transaxle, it also has 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 bothof 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. 4-9