2003 Suburban Heated Seat

My 2003 suburban has heated seats, and while on a trip today, I went to turn the heated seat on the drivers side on, it came on, then i heard a click from under the seat, and looked and it had went off. Now it will only stay on maybe 2 seconds, the passenger side will work, until you try to turn driver side heated seat on, then they both go off. Any advice or help would be greatly appreciated. Thank you