[shorod]

Hopefully you have the keyless entry keypad on the driver's door. From the factory service manual:

To activate the autolock feature, use the following steps:

1. Enter the five-digit permanent entry code into keyless entry keypad (14A626).

2. Press and hold the 7/8 button on the keyless entry keypad within five seconds of entering the code.

3. Press and then release the 3/4 button within five seconds of pressing and holding the 7/8 button.

4. Release the 7/8 button on keyless entry keypad within five seconds of releasing the 3/4 button.

To deactivate the autolock, repeat the above sequence.

-Rod