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Anonymous Posted on May 22, 2012

Buick Lucerne CXL (w/o heated seats package) Seats heat up intermittently

We recently purchased a 2008 Buick Lucerne CXL (without the heated seats). We notice that the seats heat up in the lumbar area and the seat bottom. We are baffled as to why or how this can happen since we do NOT have controls for heated seats. The heating is intermittent and not in tandem with the other seat. Both heat up and go off at will. Can anyone offer any suggestions? TIA Debbie

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  • Anonymous May 24, 2012

    I am taking it to the dealer tomorrow. If they figure it out, I will post the solution.

  • Anonymous May 30, 2012

    The dealer informed us that the car had after market heated seats. He pointed out the buttons at the front of the seats (not visible unless you stick your head down by the floor mats) that were on. Mystery solved. I guess the dealer didn't know they were there initially because we were not told of it. Thanks to all who pondered my question.

  • Anonymous Jun 01, 2012

    No one from FixYa solved the issue. The dealer that sold us the car let us know there was an after market install of heated seats.

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1 Answer

Marvin

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  • Buick Master 85,242 Answers
  • Posted on May 30, 2012
Marvin
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Great to hear thanks.

  • Marvin
    Marvin Jun 01, 2012

    Hello again. Since this is not a factory heated seat you will need to contact the dealer or whomever installed the system and find out the following: The name of the manufacturer and the model number of the heated seat kit. I would suggest you pressure the dealer into fixing this free of charge since you just got the car and it is a late model.

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4 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Dec 12, 2008

SOURCE: Buick Lesabre Heated Seats not working

The problem is most likely caused by shorted heating grids in the seat cushion itself, kind of like the heating element in an electric blanket, very expensive to replace.

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Anonymous

  • 1 Answer
  • Posted on Dec 09, 2009

SOURCE: 2001 Buick lesabre gas guage not working, heated seats not workin

I have a 2001 and just replaced the fuel pump assembly in the tank because the fuel gauge didn't work or worked irratic. After talking to the partsman it sounded like this was common. The contact for the sensor wears away and looses contact. You will see that the new fuel pump module has different type of metal wiper contact. As for the heated seats, I have an issue with driver side also and haven't had a chance to look into it yet.

Anonymous

  • 749 Answers
  • Posted on Dec 05, 2010

SOURCE: My Heated seats in my 2001 Buick Regal wouldn't

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

Anonymous

  • 1702 Answers
  • Posted on Jun 21, 2011

SOURCE: Nee to replace connector &

i have the procedure for replacing the seat pad, but it is several pages, send me your e-mail and i will send the procedure there.

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During the following climate control seat system description and operation, the TEDs, blower motors, and temperature sensors will be referenced independently even though they are all packaged together as a module.
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Once a CCS system is activated, cabin air is drawn through the seat blower motors and directed across the fins of each of the thermo-electric device (TED) located under the seat cushion and in the seat back. The air is either heated or cooled as it passes over the TEDs. This conditioned air is then directed through channels in the foam of the seat pad and through small holes in the seat cover to the occupant. Once the system is activated, the CCSM uses a set of algorithms to control the temperature of the selected heating or cooling modes.
Your best bet is to take your vehicle to a qualified repair shop an have it diagnosed .
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DTC B19A8: Driver Seat Back Blower Speed Circuit Short to Ground

DTC B103D: Driver Blower Power Circuit

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  3. ?‡'
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  4. Verify that a test lamp illuminates between the B+ circuit terminal E and ground.
  5. ?‡'
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  6. Disconnect the C2 harness connector at the CCSM.
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  8. ?‡'
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  9. If all circuits test normal, replace the CCSM.


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