TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle access to all of the OnStar services, except Virtual Advisor and OnStar Turn-by-Turn Navigation.
See also:
Compass Calibration
Press and hold the on/off button to activate the
compass calibration mode. CAL will be displayed
in the compass window on the mirror.
The compass can be calibrated by driving the
vehicle in circ ...
Cruise Control
Cruise Control
: Press to turn the cruise
control
system on and off.
: Press to disengage cruise
control without erasing the set
speed from memory.
RES/+: Move the thumbwheel up to
ma ...
Languages
The vehicle supports English,
French (Canadian), and Spanish.
The default language is English.
To change the display language,
see Vehicle Personalization for more information. ...