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
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Playing the Radio
(Power/Volume):
1. Press to turn the audio system on and off.
2. Turn to increase or to decrease the volume.
3. Press and hold for more than two seconds to turn off the navigation system,
the Rea ...
Automatic Transmission
If the vehicle is a hybrid, see the hybrid supplement for more information.
The vehicle has a Hydra-Matic® 6L80 automatic transmission, and has an electronic
shift position indicator within the ins ...
Transferring a Call
Audio can be transferred between the Bluetooth system and the cell phone.
The cell phone must be paired and connected with the Bluetooth system before
a call can be transferred. The connection pro ...