I have an 04 Yukon Denali, and the heated seats on the driver side keep coming on. I turn them off, but as soon as I do, its back on again! and at the highest temp.....its so frustrating, what can I do?
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I would check the wire harness under the seat and make sure they are clear of the seat tracks. Next make sure the plug ins under the seat are tight. If only the driver seat is shutting off may be heat element has gone bad.If both are doing it(passenger and driver) there is probably a module that controls them and that has gone bad.
hello, have someone check all fuses-and plugs for the power seat, they may be a relay for this problem, can call autoparts store and ask about any relays for the heated seats and the power seat, if thats not it you may have to replace, electric motor for seat, sounds like a fuse, the way it all quit working..
The controller could be bad but I would probe the related wiring first. From your symptoms it sounds like something can not handle the electrical load. You turn the F/R seat heater on but then you turn on the F/L and the whole system fails. It does sound like the source of the problem will be under the drivers seat. Testing needs to be performed to confirm and identify the source. Both seats share the same fuse and ground. This circuit may have a damaged wire or connector somewhere. Inspect and test as much as you can. Also look underneath the seats for anything. Customers are not aware that personal belongings and trash get pushed underneath the seats and will damage wiring. Also excessively moving the seat forward and back will weaken the harness over time. Please write back and let me know what you need. If it is more diagnostic information or suggestions just let me know. Good Luck
test to see if you have any power going through all the connectors for the seat heater, there may be a spot where there is a connector that has gone bad, or potentially it could be the whole element that is bad
See GM TSB 05-08-143-001, If you have Adjustable pedals, especially if they don't work with the memeory buttons, but function with thier own buttons. Its the Brake Pedal Position Sensor is shorted and mesing up the seat module which controls the heaters too. My 05 Suburban had the same issue