Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.
See also:
Climate Controls
The heating, cooling, and ventilation in the vehicle can be controlled with this
system.
Climate Control with Cooled and Heated Seats shown
A. Driver and Passenger Temperature Controls
B. AUTO ...
Receiving a Call
When an incoming call is received,
the audio system mutes and a ring
tone is heard in the vehicle.
- Press to answer the call.
- Press to ignore a call. ...
Engine Overheating
The vehicle has an indicator to warn of engine overheating.
There is an engine coolant temperature warning light on the vehicle's
instrument panel.
See Engine Coolant Temperature Gauge.
If t ...