Second answer in case the answer from the person above doesn't work. In the case of the battery being disconnected or dying, the remote sensor on the Saturn may need to be reset. Stand about five feet away from the car and simultaneously press the 'lock' and 'unlock' buttons on the remote for about seven seconds. The car's horn should chirp a few times if it's successful. - PaperProphet
This worked for my 1996 Saturn Sl2:
Here's how to program a new remote: You do not need the key in the ignition. Take a metal paper clip and make it into a "U" shape. Connect together pins 4 and 8 on the OBDII connector by the driver's left knee.(See picture below) This is a connector with 2 rows of 8 slots near the hood release. Counting from left to right, top row, place one end of the paper clip in slot 4 and the other end of the paper clip in slot 8. You should then hear the horn chirp. Now hold down the lock and unlock buttons on the keyless remotesimultaneously until the horn honks (should be about 15 sec.), that one is now set. Now hold the lock and unlock buttons on the second keyless remoteand so on until the horn honks. (You can program up to 4 remotes). The remotes are now programmed. Pull out the paper clip, and your done.
Picture: http://www.zygote-design.com/charles/Saturn.jpg -CalvinM123
The location of the remote keyless entry module on a 1998 Saturn is in the rear of the passenger compartment. It is underneath the trim at about shoulder height by the right rear seat.
The keyless entry module, on your Ford automobile, is located in the engine compartment. The module is bolted to the firewall.
Pass. side rear, behind shoulder strap of seatbelt
You can program the keyless entry remote, for your 2001 Saturn L200, by holding the unlock and lock weapons at the same time. The red light will flash on and off. The remote will be programmed when the red light stays illuminated.
Pull off the passenger side kick pannel and you will see a module that says something like keyless entry or security module. If you have this module you have keyless entry. This answer is based on my 2000 ranger with keyless entry. Mike B Orlando
Module is located on the frame next to the rear passenger seat under the trim
Follow the written directions that came with the new keyless entry system - OR - take it to the Saturn dealership for programming. The have all the necessary equipment and proprietary software for doing that task.
how do you program keyless entry remote 98 GMC
How do you program the keyless entry on a 2005 Ford E350 Van?
How do you program a keyless entry remote for a 2005 KIA Amanti? Kent
The keyless entry module on the 1997 Suburban is under the dash on the driver's side. The driver's side door needs to be open to see it.
To add a new key fob, take the vehicle and the key fob to an authorized dealer. To re-program a key fob after replacing it's battery, open the key fob, then read and follow the instructions inside.