Okay. One good reason already!

I was thinking it might be like the electric blankets that are 15w for low, 30w for medium, and 45w for high. They just run all the time, with maybe a safty cutoff on the high side.

If the FEH only cuts "off" when it gets "too high" with a dimmer, it would never get "too high" and just might run continuously at a lower temperature.

I think you should try it! I would if I could!
-John

 

I'm pretty sure I read it's a thermostat. That would also explain why they don't get real hot if you turn them on when it's 90º outside.

~John

 

Even on my Cherokee, Jeep put the switches in what should have been the console's ash tray lid. Of course, doing this, one lost the ash tray, but I don't smoke. However, having both switches easily viewable and reachable, was a much better design.

 

BTW, the wiring diagram for heated seats is in the on-line Modifiers Guide. Why that particular wiring diagram out of all the possible ones was put in there, I have no idea. But it is.

 

At least the switch is on the dash, can't imagine anyone thinking of anyother place to put one! But I liked the seats in my Freestar better (similar to the Edge's heated seats), there was a low/high on the switch, and it automaticly turned off after like 10 min. But on was on, unlike the cycling in the FEH. Altho I haven't had many very cold days to try it out, I occasionaly turn it on below 40 if it feels really cold out. The colder it is, the warmer & longer it seems to warm, so I have to agree it's a thermostat control vs a timer. Wonder if it's connected to the auto climate control as well?

 

Well, I rarely use it....only on real cold mornings and only until I get the seat toasty. Then its off. My wife on the other hand, uses it constantly. I always have to check the seat after she's been in it.

I loved the seats in my old (2001) Grand Cherokee. They were super comfy and had high/low settings for the seats right in the dash. In my wife's Passat, the switches are on the dash and have settings from off-5 which gives a nice range of temps. Unfortunately the seats are really uncomfortable for me.