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 BrakeExterior Care
Washing the Vehicle
To preserve the vehicle's finish, wash it often and out of direct sunlight.
Notice: Do not use petroleum-based, acidic, or abrasive cleaning agents
as they can damage the vehicle's paint, metal, or plastic parts.
If damage occurs, it would not be covered by the vehic ...
Quick Info
Quick Info gives access to quick information on Audio playing, OnStar Turn-by-Turn
route (if equipped), 5-day forecast, Nearby Fuel Stations, and Movie Show Times.
To access, press Quick Info on the Home Page or the INFO button on the faceplate.
Depending on the system and if the options are ...
Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action
that may be needed to correct a condition. Multiple messages may display one after
the other.
The messages that do not require immediate action can be acknowledged and cleared
by pressing SET/CLR. The messages tha ...