2018 Toyota Sienna: recalls and problems
7 recalls and 72 owner complaints on file with NHTSA. The most-reported problem area is power train.
Most common problems
What owners report
Whining noise when accelerating, transmission shop reported discovery of damage to transmission upon removal and inspection of transmission.
Transmission whining above 20mph. toyota customer care program [xxx] states my vehicle falls within timeframe but dealer and corporate will not honor repairs information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)
Odometer fraud. the contact purchased a 2018 toyota sienna. it was discovered that there was a mileage discrepancy. the vehicle was a private sale. at the time of purchase, the mileage was 49,000. while attempting to resell the vehicle, the auto check report indicated that the mileage was 324,000.
Vehicle: 2018 toyota sienna xle awd, vin [xxx], approximately 112,000 miles. component: power train / automatic transmission (ua80f 8-speed). the vehicle has developed a pronounced whining noise from the transmission that rises with road speed, accompanied by harsh/rough shifting. a toyota dealer inspected the vehicle and diagnosed a failing transmission requiring replacement. the symptoms and diagnostic trouble cod
Crash-test ratings
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| 2018 Toyota Sienna VAN FWD | ||||
| 2018 Toyota Sienna VAN AWD |
Source: NHTSA recalls, complaints and NCAP APIs, covering Sienna. Last refreshed 2026-09-29.