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johannessmith46

Mirai massage seat malfunction

My 2023 Toyota Mirai electric massage seat switch isn't working. I've got 155269 km on the clock and the car's throwing an error code related to it. Anyone else run into this?

4 comment(s)

ViktorS89

Interesting. I had a similar issue with my Mirai a while back. Does the error code seem specific to the seat motor, or is it more generic? Have you checked the basic stuff, like fuses? It's probably a defective cable or plug connection. Do any other seat functions work, like lumbar support or seat heating?

johannessmith46 (Author)

Good call on the other functions. Lumbar support and heating are working fine, so it does seem isolated to the massage feature. I didn't check the fuses, mainly because everything else on the seat is working. Where exactly should I be looking for these connections and what do they look like?

ViktorS89

Okay, with the other functions working, it's less likely to be a main power fuse. I’m guessing the cable for the massage function is faulty. Honestly, tracing those wires under the seat is a pain. I ended up taking mine to a workshop. They diagnosed it as a loose connection and fixed it quickly. I'd recommend doing the same; I am not an expert.

johannessmith46 (Author)

Sounds like diving under the seat myself might be more trouble than it's worth. I'll book it in with a workshop. They quoted around 95€ for a repair so I'll let them take a look at the cable and plug connection. I appreciate the insight!

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