Seat Heater on 2005 GMC Yukon XL 1500

Seat Heater will cut of after 5-10 seconds. What should I check. Thanks!

Asked by for the 2005 GMC Yukon XL 1500
The seat heater should have some type of thermostat in the seat that regulates the temperature. I would check that the thermostat is operating properly. You should have the factory repair manual for info on how to diagnose this system, you can look here for a free manual: or go to, or and get an online repair manual subscription.