Appearance Care
See also:
Twilight Sentinel
This feature automatically turns the lamps on and off. A light sensor on top
of the instrument panel makes the Twilight Sentinel® work, so be sure it is not
covered.
With Twilight Sentinel th ...
StabiliTrak® System
StabiliTrak assists with directional
control of the vehicle in difficult
driving conditions. The system turns
on automatically every time the
vehicle is started.
- To turn off both traction
...
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will
check the engine, transmission, antilock brakes, and major vehicle systems.
It also checks the tire pressures, if the v ...






