OnStar

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Automatic Door Locks
For vehicles with an automatic transmission, the doors will lock automatically when all doors are closed, the ignition is on, and the shift lever is moved out of P (Park). The doors will auto ...

Liftgate
WARNING Exhaust gases can enter the vehicle if it is driven with the liftgate or trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/hatch or lift ...

Exterior Lamps Off Reminder
A warning chime will sound if the exterior lamp control is left on in either the headlamp or parking lamp position and the driver door is opened with the ignition off. ...