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reinhardbecker1

Sienna air suspension issue

I'm having a suspension issue with my 2020 Toyota Sienna Hybrid with 65176 km on the clock. The vehicle won't lift anymore and is leaning to one side. I'm getting an error message on the speedometer, and the ride is super bumpy. Error memory points to the air suspension. Could it be the bellows valve?

Summary of the thread

A 2020 Toyota Sienna Hybrid with 65,176 km is experiencing suspension issues, including failure to lift, leaning to one side, and a bumpy ride, accompanied by an error message related to the air suspension. The problem is suspected to be a defective bellows valve. A recommendation is made to have a qualified mechanic inspect the suspension system, focusing on the air bags and valves. The issue is confirmed to be the bellows valve, which is replaced, resolving the problem.

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4 comment(s)

liamheld1

I had a similar issue with my Sienna. If your error codes point to the valve and you're experiencing those symptoms, a defective suspension airbag valve is a strong possibility. How old is your battery?

reinhardbecker1 (community.author)

Thanks for the quick reply. The battery is original, so it's about 3 years old. But, I don't see how it is connected to the air suspension?

liamheld1

While a failing battery can cause strange electrical issues, the symptoms you described point to a faulty bellows valve. Given the error codes and physical signs, I would recommend having a qualified mechanic inspect the suspension system, especially the air bags and valves. A professional diagnosis will confirm the cause and the appropriate repair, and should provide further insight into the battery.

reinhardbecker1 (community.author)

Appreciate the advice. Took it to the shop, and it was indeed the bellows valve. Replaced it and all seems good now. Cost me 590€, which sounds reasonable. Thanks again!

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TOYOTA

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SIENNA