2005 Chevrolet Impala Owner's Manual - Page 213
2005 Chevrolet Impala Manual
Page 213 highlights
Braking in Emergencies At some time, nearly every driver gets into a situation that requires hard braking. If you have anti-lock brakes, you can steer and brake at the same time. However, if you do not have anti-lock brakes, your first reaction - to hit the brake pedal hard and hold it down - may be the wrong thing to do. Your wheels can stop rolling. Once they do, the vehicle cannot respond to your steering. Momentum will carry it in whatever direction it was headed when the wheels stopped rolling. That could be off the road, into the very thing you were trying to avoid, or into traffic. If you do not have anti-lock brakes, use a "squeeze" braking technique. This will give you maximum braking while maintaining steering control. You can do this by pushing on the brake pedal with steadily increasing pressure. In an emergency, you will probably want to squeeze the brakes hard without locking the wheels. If you hear or feel the wheels sliding, ease off the brake pedal. This will help you retain steering control. If you do have anti-lock brakes, it is different. See Anti-Lock Brake System (ABS) on page 4-7. In many emergencies, steering can help you more than even the very best braking. Traction Control System (TCS) Your vehicle may have a traction control system that limits wheel spin. This is especially useful in slippery road conditions. The system operates only if it senses that one or both of the front wheels are spinning or beginning to lose traction. When this happens, the system reduces engine power and may also upshift the transaxle and apply the front brakes to limit wheel spin. This light will flash when your traction control system is limiting wheel spin. You may feel or hear the system working, but this is normal. If your vehicle is in cruise control when the traction control system begins to limit wheel spin, the cruise control will automatically disengage. When road conditions allow you to safely use it again, you may re-engage the cruise control. See Cruise Control on page 3-10. 4-9