See also:

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 ...

Before Driving
The RSE is designed for rear seat passengers only. The driver cannot safely view the video screen while driving and should not try to do so. In severe or extreme weather conditions, the RSE system mi ...

Reducing Speed While Using Cruise Control
If the cruise control system is already activated, . Press and hold the SET– button on the steering wheel until the desired lower speed is reached, then release it. • To slow down in small amount ...