1995 Buick Riviera heated seat switch

Could be a bad thermistor in the seat, not seeing it up to temp.My wiring diagram doesnt say what colors for what wires when it comes to that.Might need to find a shop that is capable of electrical diagnoosis to see if the thermistor is sending signal back to the controller (under drivers seat). In the mean time, you can disable it by removing the fuse (HTD ST) located in fuse center under the rear seat to keep it from possibly overheating and shorting out causing more damage