GM Service Manual Online
For 1990-2009 cars only

The central door unlocking system is activated from the driver's door.

From the outside, you can lock or unlock all the doors at the same time by using either the key in the driver's door or the remote keyless entry transmitter.

From the inside, you can lock or unlock all the doors using the driver's or the front passenger's power door lock switch. You can also lock or unlock all of the doors by using the manual door lock knob on the driver's door.

The central door unlocking system is activated from the driver's door.

From the outside, you can lock or unlock all the doors by using either the key or the remote keyless entry transmitter, if equipped. From the inside, you can lock or unlock all the doors by using the driver's door lock switch while the driver's door is closed.

Your vehicle may have a central door unlocking system that is activated from the driver's door.

From the outside, you can lock or unlock all of the doors on your vehicle from the driver's door by using either the key or the optional Remote Keyless Entry transmitter. From the inside, you can lock or unlock all of the doors using the driver's door lock.