See also:

Rear Climate Control System (Rear Climate with Rear Seat Audio)
A. Fan Control B. Air Delivery Mode Control C. Temperature Control For vehicles with the rear climate control system, the controls are located on the rear of the center console. Press the REAR b ...

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 vehic ...

Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them. To mute a call, press , and then say “Mute Call.” To cancel m ...