How to PATS key and keyless entry programming

Author: TommySVT
Applicable to: All vehicles with keyless entry/1996+ vehicles for PATS key
Added: 09/19/2002
Updated: 09/19/2002

To program a new key:

Buy a PATS key and have it cut.

Using a currently working key, place it in the ignition and turn it ON until the dash lights come on.

Turn the ignition off, remove key.

Within 10(?)seconds, place the new key in the ignition, turn the ignition ON until the dash lights
come on.

Wait a few seconds for the PATS LED to stop blinking,

Turn ignition off, remove key.

New key is now programmed. This will work for up to 16 keys. After that you have to go to the dealer to

have the memory reset.

For the Keyless Entry Transmitter:

Up to 4 transmitters can be programmed.

Gather up ALL of the units you want to use.

Find a paper clip, open it up and reform it into a U shape.

Empty your glove box, deflect the sides in, and drop it all the way down toward the floor.

Look at the harness behind the glove box. It runs along the cross brace. Look for a white, two
pin, unterminated connector - it may be taped into the harness. This is the programming
connector.

Turn the ignition ON so the dash lights come on.

Take your paper clip and insert it in to the two pin connector.

The horn will chirp to confirm that you are in programming mode.

Press any button on Transmitter #1.

Horn will chirp to confirm programming.

Press any button on Transmitter #2.

Horn will chirp to confirm programming.

Repeat for Transmitter #3 and #4 if applicable.

Remove paper clip from connector.

Turn igniton OFF, horn will chirp to confirm exit from programming mode.