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:
Vehicles Without a Navigation System
When the vehicle is on and the driver shifts into R (Reverse), the video
image automatically appears on the inside rearview mirror. Once the driver
shifts out of R (Reverse), the video image automat ...
Control Buttons
The buttons used to control the radio are:
RADIO/BAND: Press to turn the radio on and choose between AM, FM, and XM™,
if equipped.
MENU/SELECT: Press and turn to navigate the available menus.
...
Keyless Liftgate Opening
Press the touch pad on the liftgate handle to open the liftgate if the
keyless entry transmitter is within range. ...