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:
Shifting Into Four-Wheel Drive Low
When Four-Wheel Drive Low is engaged, vehicle speed should be kept below 72 km/h (45 mph).
Extended high-speed operation in Four-Wheel Drive Low may damage or shorten the life of the drivetrain.
To ...
Infants and Young Children
Everyone in a vehicle needs protection! This includes infants and all other children.
Neither the distance traveled nor the age and size of the traveler changes the need,
for everyone, to use sa ...
Remote Start Heated Seats
When it is cold outside, the heated seats can be programmed to turn on automatically
during a remote vehicle start. The heated seats will be canceled when the ignition
is turned on. Press the heat ...





