See also:

Ending Cruise Control
There are three ways to end cruise control: To disengage cruise control, step lightly on the brake pedal. Press on the steering wheel. To turn off the cruise control, press on the steering ...

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. ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...