Only One Transmitter Operates
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Toronado, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, and 1990 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.
Replace transmitter batteries. Ensure that transmitter battery terminals are clean and making good contact. Replace suspect transmitter. See PROGRAMMING PROCEDURES in this article.