See also:

Tips and Troubleshooting Chart
...

Repair Facility
GM also recommends that you choose a collision repair facility that meets your needs before you ever need collision repairs. Your dealer may have a collision repair center with GM-trained technici ...

Door Locks
To lock or unlock the doors from the outside, press or on the Remote Keyless Entry (RKE) transmitter. To unlock a door from the inside, pull once on the door handle to unlock it, and a second tim ...