1993 Cadillac Fleetwood Owner's Manual - Page 86

You can match a transmitter as many different vehicles as you own, to provided theyare equipped with exactlv the same model svstem. (General Motors offers several different modelsof these systems on theirvehicles.) Each vehicle can have only2 transmitters matchedto it. See your dealer to match transmittersto anothervehicle. Battery Replacement Under normaluse, the batteries in your key chain transmitter shouldlast about two years. You can tell the batteries are weak if the transmitter won't work at the normal rangein any location. If you have to get close to your vehicle before the transmitter works, it's probably time to change the batteries. 1. Use round end of the doorkey, or a quarter to rotate cover counterclockwise I 1/16 of a turn. 72