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:
Radio Reception
Frequency interference and static
can occur during normal radio
reception if items such as cellular
phone chargers, vehicle
convenience accessories, and
external electronic devices are
plu ...
Delayed Entry Lighting
The interior lamps will turn on if you open the door when
it is dark enough outside. When you close the door with
the ignition off, the interior lamps will stay on for up to
25 seconds or until ...
Wiper Activated Headlamps
This feature activates the headlamps and parking lamps
after the windshield wipers are turned on and have
completed eight wipe cycles within four minutes.
When the ignition is turned to LOCK/OFF, ...