2013 3.8 seat warmer not working

[tm20133.8]

The driver seat warmer switch lights up normally to start (in either high, medium or low setting) but after about 10 seconds all three lights flash steadily until the car is turned off. I replaced the controller under the seat as suggested in an earlier post but no change. The fuse tests good. Does this mean the heating element under the seat cover must the problem? Thanks in advance for any thougths or experience with this.

 

[jep604]

The driver seat warmer switch lights up normally to start (in either high, medium or low setting) but after about 10 seconds all three lights flash steadily until the car is turned off. I replaced the controller under the seat as suggested in an earlier post but no change. The fuse tests good. Does this mean the heating element under the seat cover must the problem? Thanks in advance for any thougths or experience with this.

I'm having the same issue. Verify the wiring metal pins are secure inside the plastic connectors, a known issue with Hyundai from my experience. I have to dig deeper in the issue as I might have a bad seat element.

 

[scottdk]

The driver seat warmer switch lights up normally to start (in either high, medium or low setting) but after about 10 seconds all three lights flash steadily until the car is turned off. I replaced the controller under the seat as suggested in an earlier post but no change. The fuse tests good. Does this mean the heating element under the seat cover must the problem? Thanks in advance for any thougths or experience with this.

I had this happen on my '09 4.6 probably around 2010. I also was getting a smell from the car and when I brought in to the dealer they found my heated/ventilated seat switch shorted out. It was replaced under warranty and still works fine today.