See also:

Air Quality Sensor
This will allow you to select whether the system will operate at high or low sensitivity. Only vehicles with the dual zone climate control will have this option. Press SELECT when Air Quality ...

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 acce ...

Using the Digit Store Command
The digit store command allows a phone number to be stored by entering the digits individually. 1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. ...