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2014 Silverado LTZ BOTH Heated Seats not working but cooled seats work

Csmith3601
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Csmith3601 New Member

Csmith3601

Posted
Posted

Both driver and passenger side seat heaters not functioning. Lights on the dash work when i try to turn them on, however no heat at the seats. Swapped fuse in cabin box. What else should I do?

rav3 Senior Enthusiast

rav3

Posted
Posted
10 minutes ago, Csmith3601 said:

Both driver and passenger side seat heaters not functioning. Lights on the dash work when i try to turn them on, however no heat at the seats. Swapped fuse in cabin box. What else should I do?

Here's what GM gives to their service Techs to check seat heaters:

Heated seats 4902208.pdf

  • Like 1
Jallis New Member

Jallis

Posted
Posted (edited)

I have a 2017 LTZ  with the same problem. Dealer says it is the heated seat control module. Hopefully the extended warranty will cover it. I'm not paying them $675 if the warranty doesn't. The part is $ 43. Is there any setup or programing to just change out the module with a new one?

Edited by Jallis
Ed S Enthusiast

Ed S

Posted
Posted

Common problem with the seat cushion heaters. They short out. I had to replace both lowers on my 2014 Sierra that had less than 50,000 miles on it. Plenty of youtube video's out on how to do it. It's kind of a pain. Just another weak point of the GM trucks. I think there is a better improved replacement heater GM is now using to replace the bad ones. 

  • 9 months later...
bcarehart New Member

bcarehart

Posted
Posted

I have a 2014 LTZ 1500, took mine in to the dealership and they said the module below was bad.  I purchased a new one but have not been able to find the location.  Anyone know??

23486250.jpg

kyle1234 New Member

kyle1234

Posted
Posted
On 11/8/2022 at 9:15 AM, bcarehart said:

I have a 2014 LTZ 1500, took mine in to the dealership and they said the module below was bad.  I purchased a new one but have not been able to find the location.  Anyone know??

23486250.jpg

This is located under the passenger seat, dead in the middle. can be accessed from the front of the seat. Just unplug the two plugs going in it.

  • 11 months later...
  • 1 year later...
  • 2 weeks later...
truckguy82 Senior Enthusiast

truckguy82

Posted
Posted (edited)

Fyi, I replaced the oem leather seat cover on my ‘14 sierra. Never did it before. Watched a youtube video. Wasn’t that bad. If for some reason you need access to seat heating element, you can probably replace the seat covers while you’re at it. Makes the interior look new.

Edited by truckguy82
  • 1 month later...
Mikeschulz New Member

Mikeschulz

Posted
Posted

I have a 2014 LTZ Silverado and I could not find that module under the seat of the passenger. There is a large module with about six connections under the driver's seat. Has anyone figured out the location? I assume that is my problem because no one rides in the passenger and both seats are not heating which I would assume its the element themselves.

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 1/17/2025 at 2:51 PM, Mikeschulz said:

I have a 2014 LTZ Silverado and I could not find that module under the seat of the passenger. There is a large module with about six connections under the driver's seat. Has anyone figured out the location? I assume that is my problem because no one rides in the passenger and both seats are not heating which I would assume its the element themselves.

We understand how this heated seat concern has been difficult, and we would like you to know that we are here to assist in any way that we can. To get started, please send us an email to [email protected]. Make sure to include your Username and Forum name in the subject line with additional details. We look forward to your response. 

  • 4 weeks later...
Jcuff22 New Member

Jcuff22

Posted
Posted

If anyone has found the issue to this I would love to know. I have been trying to figure it out for months now and haven't gotten anywhere. I do not see the module like some have said.

  • 3 months later...
Brad Chesney New Member

Brad Chesney

Posted
Posted

Has anyone had any luck with this? 14 LTZ with heated and cooled seats here.  Cooled seats work fine and lights for heated buttons work, but no heat, bottom or back either seat.  Purchased module, but was not found in either seat.  

davester Senior Enthusiast

davester

Posted
Posted
On 6/7/2025 at 3:16 PM, Brad Chesney said:

Has anyone had any luck with this? 14 LTZ with heated and cooled seats here.  Cooled seats work fine and lights for heated buttons work, but no heat, bottom or back either seat.  Purchased module, but was not found in either seat.  

get a subscription to alldata.com for your truck, that will have diagnostic procedure for the problem, where that module goes and how to replace it.

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