This vehicle has the Antilock Brake System (ABS), an advanced electronic braking system that helps prevent a braking skid.
When the vehicle begins to drive away, ABS checks itself.
A momentary motor or clicking noise might be heard while this test is going on, and it might even be noticed that the brake pedal moves a little. This is normal.

If there is a problem with ABS, this warning light stays on.
If driving safely on a wet road and it becomes necessary to slam on the brakes and continue braking to avoid a sudden obstacle, a computer senses that the wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each wheel.
ABS can change the brake pressure to each wheel, as required, faster than any driver could. This can help the driver steer around the obstacle while braking hard.
As the brakes are applied, the computer keeps receiving updates on wheel speed and controls braking pressure accordingly.
Remember: ABS does not change the time needed to get a foot up to the brake pedal or always decrease stopping distance. If you get too close to the vehicle in front of you, there will not be enough time to apply the brakes if that vehicle suddenly slows or stops. Always leave enough room up ahead to stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold the brake pedal down firmly and let ABS work. You might hear the ABS pump or motor operating and feel the brake pedal pulsate, but this is normal.
Braking in Emergencies
ABS allows the driver to steer and brake at the same time. In many emergencies, steering can help more than even the very best braking.
Brakes
Parking BrakeDriver or Passenger Seat Replacement
Removal Procedure
Warning: Refer to SIR Warning in the Preface section.
Warning: When carrying a live inflator module, make sure the bag
opening is pointed away from you. This minimizes the chance of
injury in the case of an accidental deployment. Never carry the inflator module
by the wi ...
Service Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission,
axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably
service General Motors c ...
Body Side Trim Panel Replacement - Left Side
Preliminary Procedure
Remove the rear side door sill trim plate. Refer to Rear Side Door Sill
Trim Plate Replacement.
Remove the rear seat back. Refer to Rear Seat Replacement.
Remove the quarter window garnish molding. Refer to Quarter Window
Garnish Molding Replacement.
...