in addition to the tachometer not working, on the way home from school today the blinkers wouldnt work, hazards did though. The windshield wipers didnt work either, and there was no temperature reading. turned off the car after i got home, turned it back on, everything works now (minus the tachometer still)

Anybody know what could be wrong? Checked the fuses inside the car (not under the hood) and they're all fine.