See also:

RKE without Remote Start Shown
RKE without Remote Start Shown (Lock): Press to lock all doors. The turn signal indicators may flash and/or the horn may sound to indicate locking, see “Locking Feedback” under Vehicle ...

Starting the Vehicle
1. Aim the RKE transmitter at the vehicle. 2. Press . 3. Immediately after completing Step 2, press and hold until the turn signal lamps flash. When the vehicle starts, the parking lamps w ...

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 ...