Why does my speedometer run backwards
The speedometer or the odometer? Did you have any work done on the car recently or was this out of the blue?
The security system kept shouting the gas off so I went on line and it said to remove a relay in the glove box. Well we weren't sure which one so we pulled then all. Now the security system is good but the speedometer runs backwords. The odometer runs properly.
That is bizarre. Try disconnecting the battery for several minutes and then hooking it up again and maybe it will reset itself.