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Is there any trick to make the seat heaters stay on? I don't see anything about it in the manual, nor do I see any mention that they'll automatically turn off after 15mins. The only way I've found to "trick it" into staying on is every few minutes, switch from heat to cooling for about a minute, then go back to heat. However, if it ever kicks off, you have to restart the car to have the heaters on.
My 18' Highlander stayed on indefinitely as long as the car was running, and I'd much prefer that.
Last edited by cmrtopher; 06-21-22 at 01:18 PM.
Reason: Updated time until shut off
Nothing in the manuals suggesting there is a timer. Perhaps an electrical problem causing a circuit trip?
I feel like there’s a timer in the ecu or something. Because if we don’t “toggle” the heat off like I mentioned above, both seats turn off at the same time. If I only cycle one seat and not the other, the “uncycled” seat stays on. I thought maybe it was a overheating thing, but I don’t see how that would be it?
I wonder if there's a difference between the Canadian versions and the US versions. Anyone with a US version that has experienced the seat heaters cutting off?
Secondary question, is there a control module the seat heaters themselves? If it's NOT supposed to time out, I would think it would be a single module failing vs individual ones failing at the exact same time.
If there is a difference between the Canadian modules and US modules, I wonder if they can be switched out.
2014 there were no special US versions. Production did not start in US until 2016my so prior to that all North American production was in Japan. The only difference may be that all cars for the Canadian market had to have block heaters…and that is likely a dealer installed item as it does not show on the factory build list.
2014 there were no special US versions. Production did not start in US until 2016my so prior to that all North American production was in Japan. The only difference may be that all cars for the Canadian market had to have block heaters…and that is likely a dealer installed item as it does not show on the factory build list.
There are Canadian market variants and NA market variants. Even though they’re made in Japan. For instance the Canadian ones with KM only on the speedo
Wrong. Display units are programmable. From the manual…
Yes, display units are programmable, but there are different clusters for Canada that the speedometer does not show MPH, only KPH. Don’t believe me? Check out the parts for just the cluster for different country variants here https://www.lexuspartsnow.com/parts-...cal/meter.html
Wrong. Display units are programmable. From the manual…
Any time spent on a parts catalog would show you that there are variants for many parts for all markets. No need to be a jerk about it. Not all of these cars are made exactly the same for America, Mexico, Canada etc.
06-19-22, 08:02 PM
Seat Heater Timers
