2001 Jeep GC seat heaters don't work. Is there a

First off, I would contact your local Jeep dealer and have them run your VIN # to check for any recalls. The 1999-2004 Grand Cherokees had a recall on the seat heaters. If your vehicle doesn't fall into the VIN # range then either your seat heater switch has gone out, or you have a broken element in the seat heater. I have replaced more seat heaters than switchsm the elements heat up and break. Hope this helps out.

Best of luck

this fuse is of high rate and must be found under the hood and most probably not in the cockpit.

Make sure the fan control module has not failed. They tend to do this on Chrysler products. Mine did on my '03 Jeep GC at about 48k miles..

Check the fuse(s), then the relay, check the plugs under the seat (they can come undone), otherwise it might be a bad heater patch (meaning you need to replace it).

no heat with fan heater? engine heat? seat heat? radiator heat? If you need help, try to be more informative with details of whats happening, don't be shy. Check fuses.

I'd check to see if you're getting power to the switch first. If no, check fuse, if yes, test switch. You might get lucky on this one.

Check the wiring from the relay to the fan motor, and check the wiring from the fuse block. Basically check all wires that supply power to the fan motor, use a volt meter. Fan Relay (behind headlight, under battery) on the 2001 GC 4.0L are a piece of ****, I change mine almost yearly. The problem is their location, a high heat area prone to the elements. I understand that 2002 and newer, the location was changed and the problem solved. Relay might close the circuit when cold or at reasonable temps, but might open a circuit when it heats up, causing the problem.

i had the same problem and i had to replace the dual zone control center

Ok it is obvious since the light is coming on you are getting power to the switch. It could be a heated seat relay. Im fairly sure jeeps use a relay after the switch that is where I would start. Check and see if the Heated seat relay, and fuse are good

Sounds like the same problem I had. I brought it to the Jeep dealer and they told me that the heating element in the seat stopped working. They told me that the only way to repair was to take the seat apart and replace the heating element in the seat. Of course they will charge you the standard $80 to tell you this. and then quote you $500 plus to repair. I can't even remember how much, I have decided it was not worth it.
Also this website could help you:
http://www.wjjeeps.com/seats/seats.htm