Standing in front of the trunk open it up. The key code should be on the right hinge (made of metal) of the trunk. In white Label background the code will be in Black 5 digits.
Ou812
Just a long shot, but check inside the trunk for a sticker.
Look on the trunk lid support arm.
Check inside the trunk, on the lid arm.
thats my question to you
There should be a sticker on the underside of the trunk lid - that's where it was on my 92 grand marquis
You cannot reprogram it. A dealer can get you the Master Code if you've lost it.
Just inside the trunk lid it's a small piece of white tape w/ 5 numbers
dealer has to do it with factory scan tool
You will find a sticker in the trunck with the factory code printed on it.
Mine was under the trunk lid. When you open the trunk you can see it up underneath towards the back. A white sticker with 5 black numbers on it. '94 Grand Marquis
Open the trunk. It is taped on the passenger side hinge. Ed.