Hello All: I recently purchased a low mileage 2002 XJ8 for the Wife for her use and she is generally pleased except for the pre-programmed, limited temp range of the heated seats to function. We live in South Florida and the User's Manual states that the heated seat do not function above certain temperatures, of which that temp is not listed, but I noticed that they had worked briefly during a recent very "cold" {about 55F- everything is indeed relative..} morning, but never at higher temps. She has back problems and needs to keep her seat warm nearly all the time, even with the AC on, which is required down here almost year round. Any suggestions for a work-around to keep the heated seats functioning in my warm climate? I'm a retired engineer and have figured out a new circuit, complete with an external switch, but before I tear things up, maybe there is a neat, and easy fix/setting for this requirement? Thanks in advance.

 

This might help.
https://www.jaguarforums.com/forum/x...-solved-44965/

 

Your thermostat is likely broken (or maybe mine was bypassed by a prior owner?), mine works whenever it is needed - definitely works in temps well over 55F

 

Great! Thax. Would you know were the thermostat for the heated seat function is located? I'm new to Jaguars, but am a major Car Guy! Thanks again. Gil

 

Follow the link STU gave you in the #2 post to your question. The pictures show where the thermostat is located.