The link in the quote may not work for you I just realized. You can also look here for the heated seat issue.

https://www.gmforum.com/bonneville-gxp-northstar-powered-cars-107/another-seat-heater-module-story-281121/

https://www.gmforum.com/showthread.p...eated+seat+fix

Welcome Erik to the greatest bonneville site.

I have tried 3 different heated seat switches..they all exhibit the same behavior(stay on for a few seconds, noticeable relay click, then shut off) the little amber LED works on them(HI/LO) but the switch itself(ON/OFF) does NOT light up on any of them...is this a fuse/wiring issue or do I really have 3 faulty switches/bad element.