2008 TOYOTA SIENNA — FIRERELATED
The contact owned a 2008 Toyota Sienna. The contact stated that while he was away, the fire department called to notify him that his vehicle had caught fire while parked in the driveway. The contact's neighbor was alerted to the fire by the vehicle's alarm system and called the fire department. The ...
2019 TOYOTA SIENNA — UNKNOWN OR OTHER
Started hearing a whining noise upon acceleration. Took car to Toyota for a diagnostic check. Discovered transmission is failing. Recommended repair is a full transmission replacement, quoted $10,000. After bringing to a local mechanic for a second opinion, he claims this is a widespread issue with ...
2006 TOYOTA SIENNA — WHEELS
The TPMS system failed in the ECM or engine computer. It uses the wheel speed sensors on each hub to measure differences in wheel speed and uses this to infer if any one wheel has low tire pressure. (This vehicle does not have TPMS sensors in the wheels.) However, with this failure, it reports a ti...
2017 TOYOTA SIENNA — ENGINE
Whining noise upon acceleration
2018 TOYOTA SIENNA — POWER TRAIN
My 2018 Sienna had developed a whining noise when accelerating. After taking it in to the mechanic, they advised the transmission was failing. Estimated price tag of $6500-7000 to repair. The vehicle has less than 140K miles. Looking at different issues with this make/model and year, it seems l...
2017 TOYOTA SIENNA — POWER TRAIN
In July of 2025 my 2017 Sienna started making a whine noise. Took it to mechanic and he stated it was likely coming from transmission but recommended we take it to Toyota dealership to confirm. So we took it to Toyota and sure enough they said the transmission was failing. They said it was due to hi...
2014 TOYOTA SIENNA — FUEL/PROPULSION SYSTEM
The vehicle died while driving and when I try to start again it will crank but can't start.
2017 TOYOTA SIENNA — POWER TRAIN
The transmission started making a whining sound. There is a Toyota customer support bulletin pol19-04 that mentions this issue however the dealer says this car is not covered
2002 TOYOTA SIENNA — ELECTRICAL SYSTEM
Dear Sir, On April 2026, I need to do the semiannual smog check. Right now, I face DTC P0420 error code and I can't pass the smog check inspection. Note that I don't have the engine light on indicating the a/m error code. Only my OBD2 shows the error DTC Code P0420. I did some searhing and noticed ...
2015 TOYOTA SIENNA — ENGINE
i am having repeated issue with Toyota sienna engine 1. Engine oil leaks through timing chain cover 2. Engine coolant leak Engine oil leak keep repating even I fixed earlier and leaks again due poor engine design same issue fixed on Nov/22/20 - 59k