See also:

Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase the vehicle's speed. When you take your foot off the pedal, the vehicle will slow down to the previous set cruise control speed. ...

Curve Tips
Take curves at a reasonable speed. Reduce speed before entering a curve, while the front wheels are straight. Adjust speed so you can drive through the curve. Maintain a reasonable, steady s ...

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 ...