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Both front seat heaters quit working?

Tiny
MM5924
  • MEMBER
  • 2005 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 72,000 MILES
Both front seat heaters quit working & the drivers side power seat quit at the same time? The power adjustments work on the passenger side but the heat does not, on the drivers side both heat and power adjustments don't work. It all quite at the same time. I'm guessing it's a fuse but the owners manual isn't clear on which fuse supplies power to these applications and I don't understand why the power adjustments work on the passenger side only.
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Wednesday, February 3rd, 2010 AT 8:55 PM

56 Replies

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello,

It sounds like the DDM has gone out which is common but we should check the fuses first here is a guide to help us get started with the locations of the DDM fuses and the drivers door module. Also I have included the wiring diagrams so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Wednesday, February 3rd, 2010 AT 10:01 PM
Tiny
MM5924
  • MEMBER
  • 3 POSTS
Tested ok and it does have the memory style seats. The indicator lights do not come on at all when the button is pushed.
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Wednesday, February 3rd, 2010 AT 10:11 PM
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Okay, seems this is a common problem with the newer Tahoes. There is actually a TSB (techincal service bulletin) about this issue. Most likely the driver door module will need reprogrammed, however, you need to have the driver door module scanned by Chevrolet dealer to see if it has to be completely replaced or if it just needs reprogrammed.
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Thursday, February 4th, 2010 AT 7:27 AM
Tiny
MM5924
  • MEMBER
  • 3 POSTS
I found the DDM was bad it cost me $340.00 to get it fixed FYI
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Thursday, February 4th, 2010 AT 7:36 AM
Tiny
DEMPSEY
  • MEMBER
  • 1 POST
  • 2005 CHEVROLET TAHOE
  • 87,000 MILES
The driver's side seat heater stopped working. You press the button and it will shut off after about 2 seconds. The passenger side seat heater works perfectly unless the driver's side button is pressed. What do I do to fix this? I don't know what's wrong.
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Check with gm on this 1. They have a problem with the heated seats on all there divisions. They have to have a service bullitin out
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
TIM OPIEKUN
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET TAHOE
2003 Chevy Tahoe, 42k 5.3L

The heated seat on the driver side recently quit working. When the buttons are pressed on the door, the lights come on momentarily then there's a click from a black box under the seat and it shuts off. I also noticed that the passenger seat works, til you press the driver side and everything shuts off. Does have something to do with the 'black box' under the driver's seat. What is the box called? Is this common? Any and all info would be greatly appreciated!

Thanks!

-Opie
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
LAURAGRISHAM
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
Electrical problem
2003 Chevy Tahoe V8 Four Wheel Drive Automatic 70000 miles

The Lock, window, and heated seat won't work on the front passenger side only. Could it be a fuse issue? If so, I looked for the fuse and could not find it. Thanks
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
KEVSTUNNER
  • MEMBER
  • 1 POST
I have the exact same problem with a 2003 chevy silverado LT I have not been able figure any thing out. I have checked all fuses and everything looks good. If you find out any thing please let me know.
K. Anderson.74@hotmail. Com
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Remove the window switch on the passenger side and disconnect it for 30 sec. If everything starts working, that unit (passenger side door module) will need to be replaced. If not it will need to be reprogramed
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
CANAMATT
  • MEMBER
  • 1 POST
I have a 1999 Tahoe with 98,000 KM on the clock.
The drivers side seat heater no longer functions in either med or high. The passenger side still works, the fuses and the switch check out OK. The seatbelt warning still works as do all the power movement switches.
Does anyone know how the safety cutoff works? Is it a "squat" switch that detects weight in the seat or off the seatbelt warning.
In 1999 the switch for the seat heat is on the lower outboard side of the seat, not in the door as with newer models.
Any ideas??
.....Canamatt


https://www.2carpros.com/forum/automotive_pictures/126694_TAH3_1.jpg

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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
REEDP79
  • MEMBER
  • 2 POSTS
I have the same problem with mine. Last year at about 75,000 my driver side heated seat stopped working, all other power seat and lumbar swithches work perfect. My passenger side heater works fine too. Ive checked the fuses and they all seem fine. Ive read where this has been a problem in other Tahoe's. Any suggestions or fixes?
Please respond to reedp79@yahoo. Com
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Monday, January 30th, 2017 AT 1:39 AM (Merged)
Tiny
DAN K
  • MEMBER
  • 1 POST
  • 2000 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
Electrical problem
2000 Chevy Tahoe V8 Four Wheel Drive Automatic 105000 miles

My heated seat has failed. Before completely failing it did seem to get very hot when used (even on low) and then just quit working.

11/05/08
I was hoping that you could provide some repair information in your reply, such as: can it be repaired and how difficult or does the seat need to be replaced? If it needs to be repaired in shop, what an estimate might be?

Again, thanks for the help and thanks in advance for any additional information you may be able to provide.
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Monday, January 30th, 2017 AT 1:40 AM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
The heating elements usually burn apart and cause them to quit working.
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Monday, January 30th, 2017 AT 1:40 AM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
Remove the seat from the vehicle. Remove the seat covers. You will find the heating elements attached to the cushion or the cover. Leave them there. Cut the wires from the heating elements. Attach the new elements to the old ones and connect the wires. Re-install the covers and the seat.
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Monday, January 30th, 2017 AT 1:40 AM (Merged)
Tiny
JAMESDGROSE
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 98,542 MILES
Interior problem
2003 Chevy Tahoe V8 Four Wheel Drive Automatic 98542 miles

Driver heated seat wont work, push buttom light comes on for a while then goes out. Passenger seat fine.
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Monday, January 30th, 2017 AT 1:40 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,896 POSTS
If the switch light comes on then goes off after some time, chances are the switch itself is bad and can't handle the electrical draw. Have that checked to confirm.

Let me know what you find.
Joe
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Monday, January 30th, 2017 AT 1:40 AM (Merged)
Tiny
CHEVY1999TAHOE
  • MEMBER
  • 8 POSTS
  • 1999 CHEVROLET TAHOE
Electrical problem
1999 Chevy Tahoe V8 Four Wheel Drive Automatic

my driver side heated seat is not working I have power going to it
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Tuesday, January 22nd, 2019 AT 1:58 PM (Merged)
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
Hello chevy1999tahoe

If there is power to the module but it still not working , the module need to be replaced


https://www.2carpros.com/forum/automotive_pictures/46384_0996b43f8024b9d2_3.jpg



I'm sending the wiring diagram to your email.
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Tuesday, January 22nd, 2019 AT 1:58 PM (Merged)
Tiny
CHEVY1999TAHOE
  • MEMBER
  • 8 POSTS
Why can I find the module in the car
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Tuesday, January 22nd, 2019 AT 1:58 PM (Merged)

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