OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there is cell phone service. It can also check the fuel level, tire pressure, and oil life.
It can connect to an OnStar Advisor anytime. For OnStar mobile app compatibility or further information, see www.onstar.com.
See also:
Fuel Economy Light
This light should come on briefly as the vehicle is started. If it does not
come on, have the vehicle serviced by your dealer.
For vehicles with the fuel economy mode light, it comes on when t ...
Interior
The DTS can hold either five or six occupants, with a choice of front bucket
seats or a front bench. Compared with the DeVille, the instrument panel has been
lowered and moved forward. A new analo ...
When the System Does Not
Seem to Work Properly
The rear vision camera system
might not work properly or display a
clear image if the following occurs:
- It is dark.
- The sun or the beam of
headlamps is shining directly
into the camera l ...






