The ass heater on the drivers side doesn't work. The backrest heats up, but not the butt. I also think the switch only work on high. Should I replace the switch, or could it be a broken wire?
Anyone else have this problem?

 

It's a broken wire. I had the exact same issue, took it to an upholstery shop and they took care of it.

 

Do you remember how much it cost?

 

I don't. They did some other work too while I had it in there. Can't say I can recommend a shop anywhere south of Portland either.. I'm in Medford these days, used to be in Lake Oswego.

 

this happened on my passenger side... the heat wire broke, so i took apart the seat and fixed it myself... so far so good...

you will need to take off the leather and look at the heat pad... i think there is a writeup in 2G TL?