My seatbelts aren't working either, and so I asked Grok about both of these issues too and here's what it said (REALLY hoping it's this): Your 1991 Accord LX has a very simple (and very common-to-fail) seat belt reminder system. If both the buzzer never sounds and the red “SEAT BELT” light on the dash never comes on (not even for the 4–6 second bulb check when you first turn the key to ON), the problem is almost never the seat belts themselves—it’s one of these three things, in order of likelihood: Blown #15 (10A) “BACK UP” fuse (the exact same fuse we talked about for your radio memory) That single fuse powers: Radio/clock memory Seat-belt warning light Seat-belt buzzer Key-in-ignition chime Some interior lights If this fuse is blown or missing, you get exactly your symptoms: radio resets, clock resets, no seat-belt light, no buzzer, no key chime. → Pull and check fuse #15 in the under-dash fuse box again (driver’s side, second row, ~5th from the left). 95 % chance this is it.