Venza transmission control unit issue

My 2021 Toyota Venza hybrid is acting up at only 29k kilometers. The transmission feels possessed. Paddle shifters are useless, gear changes are a lottery, and there's an awful grinding noise sometimes. Limp mode is now normal, and the error memory is full of transmission control unit fault codes. Sounds like the car computer is bricked. Anyone else experienced this with their Venza?

4 comment(s)

Sounds familiar. I have a Venza too. Had similar weirdness with the gearbox – slipping and jerky shifts, especially when trying to use the paddles. Felt like driving a manual with a learner driver at the wheel. Was your issue also pointing towards a control module?

Yeah, codes definitely point to the transmission control unit. Did replacing that module fix it for you, or was there more to it? Trying to gauge if I'm staring down a simple fix or a money pit.

Replacing the unit sorted it out. Definitely get it checked by a workshop though, could be other things, but sounds like ours was a very similar issue.

Appreciate the insight! Dropped it at the shop, and you nailed it - defective transmission control unit. Quoted 1000€ for the repair. Thanks for giving me a heads up; at least I knew what to expect!

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