All fuses good.....so I am thinking under the seat wiring might be broken and need mending.....?
What have you all seen happen with this issue?

It would sure be nice to get them working this winter.....LOL

 

Not too much to heated seats. Switch, relay under seat, heating elements. I'd say the heating elements break in older cars, switches go bad by having drinks spilled onto them, do they light up? Do some continuity testing to see.

 

Instead of sitting in the seat, like normal, some people put their knee in the middle of the seat and reach across to get something from the glove box or the passenger seat. I observed an expert mechanic do that to my car. If my thermostat wiring wasn't already broken it would have been by the time he got done.

I think the A-number one trouble with heated seats is broken wiring at the thermostat.