There can be many reasons why the heated seats in a car stopped working. A few reasons are, the fuse could be blow, the wiring could be out, the switch could be broken, or it is not getting enough electricity.
check fuses
The jack is under the back seats of the envoy.
A very common cause for heated seats not working is that the heater element has burned out on either the cushion heater element or the seat back element. The way the system is wired, if one goes bad, neither will work.- techJK ----------------------------------------------------------
I just test drove one today and it only have front and back seats. The envoy does not have three rows of seats. Should sit five comfortably.
Many toyota models offer heated seats
there are heated seats in my 2002 lxi
Copy & Paste link below I now it's not a ford but it give you an idea on how and what to do. Regarding your heated seat repairs. Repairing the heated seats on a Range Rover ... Introduction Diagnostics Official Procedure Bypassing a Failed Seat Bottom Elementwww.rangerovers.net/repairdetails/seats/seatheat.html
yes it does it actually haas heated and cooled seats!
Riunning lighs not working 2002 gmc envoy
Yes, a 2001 Buick Limited had heated seats available.
The top of the line EX model has heated seats on newer Accords.
Heated seats were optional. The only way to be completely sure they are installed on a specific Jeep Cherokee is to look for the switch that turns heated seats on.