Powertrain complaints and recalls from NHTSA
Summary
The 2012 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 |
|---|---|---|
| Mar 10, 2023 | POWER TRAIN | Rear axle coupler assembly (part number 41303-28013) making very loud noise and vibration. |
| Mar 22, 2022 | POWER TRAIN | The contact owns a 2012 Toyota Sienna. The contact stated that the rear differential was making an a... |
| Jun 24, 2021 | POWER TRAIN | Vehicle began 'whirring' metal noise from underneath. Local mechanic said it was coming from rear di... |
| Sep 1, 2020 | POWER TRAIN | MY 2012 TOYOTA SIENNA RECENTLY BEGAN MAKING A LOUD WHINING NOISE FROM THE REAR AXLE AREA. UPON INSPE... |
| Aug 27, 2020 | POWER TRAIN | SERVICE TECH AT THE TOYOTA DEALER SAID MY ELECTROMAGNETIC COUPLER / VISCOUS COUPLER AND DRIVESHAFT U... |
| May 1, 2020 | POWER TRAIN | UNIT IS PRODUCING A SPEED DEPENDENT WHINE FROM THE REAR DIFFERENTIAL CONSISTENT WITH A BEARING FAILU... |
| Mar 1, 2020 | POWER TRAIN | THE REAR VISCOUS COUPLER ON THE AWD HAD GONE BAD AND NEEDS REPLACEMENT. THIS PART IS THE SAME DEFECT... |
| Jan 2, 2020 | POWER TRAIN | SAYS MY REAR DIFFERENTIAL - VISCOUS COUPLER- IS BAD AND NEEDS TO BE REPLACED AT A COST OOF AT LEAST ... |
| Nov 19, 2019 | POWER TRAIN | MY 2012 SIENNA AWD XLE HAS 103K MILES AND HAS A WHIRRING NOISE COMING FROM THE REAR DIFFERENTIAL ARE... |
| Aug 1, 2019 | POWER TRAIN | THE BEARING FOR THE VISCOUS COUPLER HAS GONE BAD. IT WHINES LOUDLY WHEN IN MOTION, AND THE VOLUME C... |
| Apr 17, 2019 | POWER TRAIN | FRONT AXLE LEAKING FLUID |
| Apr 10, 2019 | POWER TRAIN | REAR DIFFERENTIAL HAS FAILED AT ONLY 60K MILES. WELL DOCUMENTED ISSUE FOR AWD SIENNA MODELS YET NO R... |
| Feb 8, 2019 | POWER TRAIN,VEHICLE SPEED CONTROL,SERVICE BRAKES | WHEN COMING TO A STOP GOING ABOUT 5 MPH TOWARDS A STOP SIGN, MY VAN ACCELERATED INTO TRAFFIC. BECAUS... |
| May 1, 2018 | POWER TRAIN | REAR DIFFERENTIAL COUPLER DYSFUNCTIONAL WITHOUT NO REASON. ALL OF THE SIENNA ESPECIALLY AWD ARE SUFF... |
| Feb 1, 2018 | POWER TRAIN | WHILE PARKED, DRIVER BEGAN EXITING VEHICLE AND VAN BEGAN TO ROLL AND CONTINUED TO ROLL WHEN GEAR SHI... |
| Oct 30, 2015 | POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | ALL UNDERWOOD COMPONENTS ARE NOT ONLY VULNERABLE, BUT ATTRACTIVE TO RODENTS. WHILE PARKED OVERNIGHT... |