Powertrain complaints and recalls from NHTSA
Summary
The 2018 Toyota Sienna has 16 NHTSA powertrain complaints and 0 powertrain-related recalls.
16
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Feb 1, 2026 | POWER TRAIN | My 2018 Sienna had developed a whining noise when accelerating. After taking it in to the mechanic... |
| Jan 14, 2026 | POWER TRAIN | Transmission has been whining. A P27137F Code appeared and the vehicle is only in 2WD mode currently... |
| Nov 1, 2025 | POWER TRAIN | The contact owns a 2018 Toyota Sienna. The contact stated that while driving 30 MPH and ascending a ... |
| Oct 29, 2025 | POWER TRAIN | My husband and I bought this van brand new 6 years ago. We have taken very good care of it and have ... |
| Aug 4, 2025 | POWER TRAIN | Transmission Whine and Hesitation. Low gear it will hesitate from stop. Know issue with this transmi... |
| Apr 24, 2025 | POWER TRAIN | Whining sound coming from vehicle while in drive and accelerator is depressed. Confirmed by dealersh... |
| Jul 30, 2024 | POWER TRAIN | This is a reoccurring issue on numerous occasions but the transmission programming is a danger to dr... |
| Apr 5, 2024 | POWER TRAIN | There has been a "whining" noise or "hum" upon acceleration noticed for several months to a year, co... |
| Mar 17, 2023 | POWER TRAIN | The contact owns a 2018 Toyota Sienna. The contact stated while driving at an undisclosed speed, the... |
| Oct 2, 2021 | POWER TRAIN,STRUCTURE,SEATS | The last week of September 2021 my husband notice a sound like water runing and a leak on the drive... |
| Jul 1, 2019 | POWER TRAIN | DELAY IN DOWNSHIFTING WHEN THROTTLE IS PRESSED. A DELAY OF 1 TO 2 SECONDS OCCURS THEN ABRUPTLY DOWNS... |
| Mar 18, 2019 | POWER TRAIN,VEHICLE SPEED CONTROL | I WAS TURNING LEFT ON COUNTRY ROAD AT 25MPH THE CAR DECELERATE AND YELLOW WARNING CAME ON THE DEALER... |
| Mar 2, 2019 | POWER TRAIN,VEHICLE SPEED CONTROL,SERVICE BRAKES | TL* THE CONTACT OWNS A 2018 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 45-50 MPH, THE ACCELERATOR PE... |
| Jan 27, 2019 | POWER TRAIN | 2018 TOYOTA SIENNA LE. CONSUMER WRITES IN REGARD TO DELAYED ACCELERATION WHICH IS CAUSING TRANSMISS... |
| Oct 10, 2018 | POWER TRAIN,VEHICLE SPEED CONTROL | THE VAN STRUGGLES TO ACCELERATE. THERE IS NO WAY TO TURN OFF ECO MODE. NO BUTTON IS AVAILABLE. VAN ... |
| Jul 1, 2018 | POWER TRAIN,ENGINE | MY 2018 SIENNA LE IS EXPERIENCING ACCELERATION PROBLEMS. I HAD THE SOFTWARE UP DATED BUT AFTER APPRO... |