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:
Ignition Positions (Key Access)
The ignition switch has four different positions.
Notice: Using a tool to force the key to turn in the ignition could cause damage
to the switch or break the key. Use the correct key, make sure i ...
Using the Dial Command
1. Press and hold for two
seconds. The system
responds with “Ready” followed by a tone.
2. Say “Dial”. The system responds with “Dial using
<phone name>”. “Number please” ...
SBZA Error Messages
The following messages may
appear on the infotainment display:
SIDE BLIND ZONE ALERT
SYSTEM OFF: This message
indicates that the driver has turned
the system off.
SIDE BLIND ZONE SYS.
UNAVA ...