OnStar Services

See also:

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 arr ...

Emissions Inspection and Maintenance Programs
Some local governments may have programs to inspect the on-vehicle emission control equipment. For the inspection, the emission system test equipment is connected to the vehicle’s Data Link Connec ...

Remote Door Lock Feedback
This feature allows you to select the type of feedback you will receive when locking the vehicle with the Remote Keyless Entry (RKE) or keyless access transmitter, or when the vehicle is aut ...