2005 Yukon Front seat heaters won't stay on?

[UNLIMITLESS]

I got the Passenger side to stay on but when the drivers is pushed they both shut off after a few seconds.....
Where do I start?

 

[a4edwin]

Welcome to one of life's unsolved mysteries. Seen countless threads started on the subject and failed to see a solution.

 

[tsb09000]

Sounds like one of the heating elements in the driver seat is burnt. You can narrow it down between the seat and the back and replace from there. Tons of threads about it with pictures that will help.