TTY Users
OnStar has the ability to communicate to the deaf, hard&-ofhearing, 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:
Extending Engine Run Time
To extend the engine run time by 10 minutes, repeat Steps 1 through 3 while the engine is still running. The engine run time can only be extended if it is the first remote start since the vehicle has ...
Turn and Lane-Change Signals
An arrow on the instrument panel cluster flashes in the direction of the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow start ...
Engine Oil Life System
The engine oil life system calculates engine oil life based on vehicle use and, on most vehicles, displays a DIC message when it is necessary to change the engine oil and filter.
The oil life system ...