OnStar Services

See also:

Cruise Control
WARNING Cruise control can be dangerous where you cannot drive safely at a steady speed. So, do not use the cruise control on winding roads or in heavy traffic. Cruise control can be dangerou ...

Steering Wheel Controls
Some audio steering wheel controls could differ depending on the vehicle's options. Controls that can be adjusted at the steering wheel may include: SRCE: Press to switch between AM, FM, o ...

SERVICE TIRE MONITOR SYSTEM
This message displays if a part on the Tire Pressure Monitor System (TPMS) is not working properly. The tire pressure light also flashes and then remains on during the same ignition cycle. Se ...