Starting the Vehicle
1. Aim the RKE transmitter at the vehicle.
2. Press and release 
.
3. Immediately after completing
Step 2, press and hold 
until
the turn signal lamps flash, or for
about two seconds if the vehicle
is not in view.
When the engine starts, the parking lamps will turn on and remain on as long as the engine is running. The doors will be locked and the climate control system may come on.
The engine will continue to run for 10 minutes. Repeat the steps for a 10-minute time extension. Remote start can be extended only once.
See also:
Storing Name Tags
The system can store up to thirty phone numbers as
name tags that are shared between the Bluetooth and
OnStar systems.
The system uses the following commands to store and
retrieve phone numbers ...
Power Door Locks
On vehicles with power door locks, the switches are
located on the front doors.
(Unlock): Press to unlock the doors.
(Lock): Remove the key from the ignition and press
to lock the doors.
...
Horn
Press on the steering wheel pad
to sound the horn. ...