This. On my Honda the auto high beams, auto wipers, and fog lights weren't working and some options weren't showing on the radio when I got it. (Botched pre-delivery inspection?). Turned out to be fairly common. The internet fix: unhook the battery for 5 minutes to force the modules relearn the car. The official Honda fix that came out: Pull a fuse, wait a few minutes, and reinstallAnd rebooting a pc never fixed anything either. Ok. Clearing a cache is useless. Got it.
The back up "batteries" in some modules are capacitors. Touching the positive and negative terminals together discharges them and clears the memory if it's corrupt.