OnStar®
OnStar OverviewTire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light comes on briefly when the engine is started. It
provides information about tire pressures and the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires are significantly underinflated.
Stop as soon ...
Cruise Control Light
For vehicles with cruise control,
the cruise control light is white when the cruise control is on and ready, and turns
green when the cruise control is set and active.
The light turns off when the cruise control is turned off. See Cruise Control
on page 9-30.
Door Ajar Light
This light come ...
Shifting out of Park
This vehicle is equipped with a shift lock control. The shift lock control is
designed to:
Prevent ignition key removal unless the shift lever is in P (Park) with
the shift lever button fully released.
Prevent movement of the shift lever out of P (Park) unless the ignition
is in ON/RUN ...