Question about 2003 Chevrolet Suburban 1500

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2003 Suburban---Heated leather seat problem

2003 Suburban---heated leather seat (driver's side, front) powers up when switched on, but shuts down (power indicator lights go off) within one/two minutes. Also, as an extra diagnostic element, prior to this happening, seat heater was working, but it was at times getting TOO HOT, as though in a runaway thermostat condition.

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There may be a software issue, there is a reprogram for seat heater issues. Bulletin 05-08-50-008 may pertain to that, a AC DELCO Shop or the dealer can ck that and see if this bulletin applies.

Posted on Sep 29, 2009

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Heat doesnt work in a 96 gmc suburban. and temperature gauge goes up and down

Posted on Jan 30, 2014

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The driver's side heated seat won't turn off on my 2003 Mecury Moutaineer. Also, how do I change my cabin filter?


Your vhicle build date is on a blue sticker on the driver door or door frame. If not there, check other doors.
The heated seat Module is under the seat. You can unplug the connector on it or the heated seat switch to shut it off. I supect the module is bad. get one used from car-parts.com. The cabin air filter is under the leaf screen at the base of the windshield. Remove wiper arms and leaf screen for access. Please rate, thanks. Principles of Operation - Heated Seats - Vehicles Built 03/2002 Onward
NOTE: Two heated seat modules are used, one for vehicles built up to 03/2002 and one for vehicles built 03/2002 onward. The modules are not interchangeable.
The driver and passenger heated seats share a common battery and ignition feed. A shared ground source supplies the heated seat control switches. When the heated seat control switch is pressed with the ignition switch in RUN or START, a momentary ground signal is sent to the heated seat module. The heated seat module then supplies power to the heating element circuit. The cushion element and seat backrest element are wired in series and powered by the same output. The heated seat module also will ground the separate indicator circuit at the dual automatic temperature control (DATC) module display panel to indicate an ON state. The heated seat module will remain on until the heated seat control switch is pressed and a momentary voltage signal is received, or until 10 minutes expire. If the ignition source is removed from the module, the heated seat module will enter an OFF state and will not return to ON until the switch is once again pressed with the ignition switch in RUN. The heated seat module is designed to heat the seat to 37.5?C (99.5?F) and maintain the temperature until time-out or switched off. This temperature is maintained by the heated seat module monitoring the temperature sensor located in the seat cushion element, and adjusting the current flow to the heating elements.
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May 22, 2011 | 2003 Mercury Mountaineer

1 Answer

My front seats will not operate or heat any suggestions


If you have no power seats or heated seats. I would wiggle a connector under the drivers seat near the rear left while trying to toggle the switch. The power where doesn't contact well and will have to be jumpered across the circuit

Jan 19, 2011 | 2003 Chevrolet Suburban 1500

1 Answer

2006 tahoe with heated seats. when the seat is


The heating element in the seat may be failing, even thogh it heats the seat, the element could be causing the circut to spike upon power shut down. Relay takes mili-second to shut down after ignition kill and power feed comes direct from battery. Check amp. draw at switch of bad seat and good seat upon shut down. If bad seat higher that 5 amp difference element n/g. Also check for bad relay as they can short internal and cause problems if primary power cut before switch shut down.

Jan 30, 2010 | 2003 GMC Sierra 1500

1 Answer

I have a 2003 2500 suburban, cloth seats, and the drivers seat needs to be replaced. The original seats were not heated and did not have airbags. I just purchased a pair of 2004 yukon power leather seats...


look under the carpet and see if the plug is are there, even though your truck didnt have them all the wiring should be there, you will have to get a new dash control as well, go to a scrap yard and locate one. again the wiring should already be there as well as the fuse setup.

Dec 18, 2009 | 2003 Chevrolet Suburban 2500

1 Answer

Need to replace driver light grey leather power seat - where to go.


I AM NOT GOOD WITH UPHOLSTERY BUT I BUY ON EBAY ONCE IN A WHILE AND I FOUND A GOOD UPHOLSTERY GUY THAT YOU CAN GET THIS SEAT OR JUST THE BOTTOM FROM IF YOU NEED IT .. I HAD HIM DO ME ONE FOR MY LEATHER SUBURBAN AND WOW ITS NICE AND I PUT IT ON EASILY THE HARD PART WAS TAKING THE SEAT OUT THEN FOUND OUT IT WAS A SNAP TO PUT ON .. THE GUYS NAME ON EBAY IS upholsteryguyss.gif IF YOU NEED ANY HELP WITH THIS LET ME KNOW YOU WILL BE IMPRESSED WITH HIS WORK.. AS FAR AS THE HEATED SEATS AND THE LUMBAR GOES YOU MIGHT FIND THE PROBLEM WHEN YOU GET IT APPART PUTTING ON THE COVERS .. USUALLY THEY GET BAD CONNECTIONS AFTER A WHILE.. THANKS JERRY AND HOLLER IF YOU NEED MORE.

Apr 20, 2009 | 2004 Chevrolet Silverado 2500HD

2 Answers

Driver Heated Seat 03 Suburban


Identical thing here with my '03 Surburban LT.

Mar 07, 2009 | 2003 Chevrolet Silverado 2500HD

2 Answers

2003 buick lesabre heated seats wont work


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.

Jan 28, 2009 | 2003 Buick LeSabre

1 Answer

Driver Heated Seat 03 Suburban


The most likely failure point is the driver heated seat elements. They probably have excessive resistance and once they warm up a little they short out the module and it defaults to not working. I would recommend replacing both upper and lower driver seat elements.

Aug 12, 2008 | 2003 Chevrolet Suburban

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