2003 Buick Regal: how do I hook up the front seat heating system? I think they're just disconnected. I can see all the wires under the driver's side seat. Neither the driver's side seat heater or seat lumbar adjustment work.

Check under the seat to see if the wire connector has been knocked off. If it's ok, then the heater element in the seat is open.

On 1992 Buick Regal 3.1L MFI OHV 6cyl. the Flasher is located:
- Hazard flasher: front seating area, passenger side, under dash, above kick panel, mounted in relay block
- Turn signal: front seating area, driver side, under dash, passenger side of steering column, mounted behind instrument panel

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I had the same problem on my 2003 regal,
I looked under the seat, and i noticed that the electrical wiring harness for the seat had caught on something . The wires had just streched so far that they all broke...all i had to do was splice them back together and presto..it worked.


check that 1st..

if not the problem, check your fuse to see idf its blown.

Either the switch itself is bad or the front heated seat module is having an issue.

I had the exact same problem.

the solution / problem was under both seats.

i looked at the wires under both seats, and they had all been severed / stretched / broken.

it seems they had gotten caught up on something, and as the seat was moved forward and backward, they just snapped.
I wired them back up, and everthing worked.

Have a look under your seat with a flashlight and examine all the wires.

let me know if this helps you out.

I have not used my heated seat all summer long, the heated seat did not work in winter when putting the switch on,so i opened the switch cleaned the contacts with (brake cleaner spray) and boom started to work.

The power seat relay needs to be replaced. The seat can not be moved manually unless it is removed from the car and taken apart

I would disconnect the battery minus - cable first, ensure the airbag connectors are the same ! otherwise I do not think you have a problem !!

I had this problem, but only on the driver's side (with leather seats). Sometimes the switch would come on, but I could not get it to go back off (and the seat would not heat).

I ended up removing the drivers front seat cover (only the bottom part), folding it back from the driver's door to the middle of the car. You also have to unplug the wiring harness underneath the seat. I found a black spot burned in the foam. This is where a wire had broken. I carefully pulled the wire together, then soldered it. I put everything back together, and it has been working ever since (about 6 months - and getting lots of use in the middle of the winter).

I think the only way to replace the heated seat wires is to replace the whole seat cover. I was glad I could fix mine by soldering it.