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:
If the Off Indicator is Lit for an Adult-Size Occupant
If a person of adult size is sitting in the right front passenger seat, but the
off indicator is lit, it could be because that person is not sitting properly in
the seat. If this happens, use th ...
What to Use
To determine what kind of fluid to use, see Recommended Fluids and Lubricants . Always use the proper fluid.
Notice: Use of the incorrect fluid may damage the vehicle and the damages may
not ...
Call Waiting
Call waiting must be supported on the cell phone and enabled by the wireless
service carrier.
- Press to answer an incoming call when another call is active. The original call
is placed on hold.
...