Toyota Sienna Complaints

9,048 consumer complaints on file.

#11733515April 24, 2026
VEHICLE SPEED CONTROL
The complaint was filed on behalf of the contact's employer. The contact drives a 2023 Toyota Sienna Hybrid. The contact stated that while driving at 5 MPH, the vehicle independently accelerated. The contact stated that the acceleration occurred while the contact was making a right turn. The contact stated that the vehicle shifted from hybrid to high speed within a second. The brake pedal was depressed, and the vehicle failed to stop as intended. The vehicle crashed into another vehicle before coming to a complete stop. The vehicle sustained damage to the front driver's side door. No warning lights were illuminated. No Police report was filed. No injuries were sustained. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact referenced an unknown recall which had a similar failure description, however the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,000. VIN unavailable.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11733541April 24, 2026
SERVICE BRAKES, HYDRAULIC
The contact owns a 2024 Toyota Sienna Hybrid. The contact stated that while the vehicle was at a complete stop, while attempting to depress the brake pedal, the vehicle unexpectedly lunged forward. There was no warning light illuminated. The contact stated that the failure had occurred several times without a warning light illuminated. The vehicle was taken to the dealer several times; however, the failure could not be duplicated. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 31,600.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733548April 24, 2026
SEATS
Due to safety recall 25TA12 anyone sitting in the second row has an increased risk of injury during a collision. This remedy has taken far too long to implement. The reason for the purchase included passenger capacity and safety. My use is now limited. Toyota should have already remedied this situation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732940April 22, 2026
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
The contact owns a 2011 Toyota Sienna. The contact had received notification of NHTSA Campaign Number: 16V858000 (Structure); however, the part to do the recall repair was not yet available. The local dealer was contacted, but the repair was not completed. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact stated the power sliding door unexpectedly opened while driving on a local roadway. The vehicle was not repaired. The approximate failure mileage was 200,000. VIN tool showed no open recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732992April 22, 2026
SEATS
The contact owns a 2025 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 25V668000 (Seats); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733159April 22, 2026
POWER TRAIN
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their customer care line. Our vehicle was taken to a Toyota dealership on March 11, 2026. We received an email on April 13, 2026 stating Toyota's inspection did not identify any evidence that this incident was a result of a concern with the operation of our vehicles gear shift lever. We retrieved our vehicle from the dealership on April 20, 2026. On April 21, 2026 From our driveway the shift lever fell out of park into drive with the ignition off, no keys, and the brake pedal not pressed. Toyota claims no responsibility! How is this possible when they know there are active recalls for the same issue on earlier models? This is a massive public safety risk considering the vehicle can rollaway without the ignition even being on! I will continue to report this issue every time the shift lever falls out of park until resolved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733164April 22, 2026
POWER TRAIN
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their customer care line. Our vehicle was taken to a Toyota dealership on March 11, 2026. We received an email on April 13, 2026 stating Toyota's inspection did not identify any evidence that this incident was a result of a concern with the operation of our vehicles gear shift lever. We retrieved our vehicle from the dealership on April 20, 2026. On April 21, 2026 From our driveway the shift lever fell out of park into drive with the ignition off, no keys, and the brake pedal not pressed. Toyota claims no responsibility! How is this possible when they know there are active recalls for the same issue on earlier models? This is a massive public safety risk considering the vehicle can rollaway without the ignition even being on! I will continue to report this issue every time the Shift lever falls out of park until resolved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733165April 22, 2026
POWER TRAIN
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their customer care line. Our vehicle was taken to a Toyota dealership on March 11, 2026. We received an email on April 13, 2026 stating Toyota's inspection did not identify any evidence that this incident was a result of a concern with the operation of our vehicles gear shift lever. We retrieved our vehicle from the dealership on April 20, 2026. On April 21, 2026 From our driveway the shift lever fell out of park into drive with the ignition off, no keys, and the brake pedal not pressed. Toyota claims no responsibility! How is this possible when they know there are active recalls for the same issue on earlier models? This is a massive public safety risk considering the vehicle can rollaway without the ignition even being on! I will continue to report this issue every time the Shift lever falls out of park until resolved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733166April 22, 2026
POWER TRAIN
On April 15, 2026 Report filed with NHTSA from an accident-causing property damage due to a failure in the shifter mechanism while the vehicle was parked, ignition off, no keys in the vehicle and the brake pedal was NOT pressed. Manufacture initiated an investigation after we contacted their customer care line. Our vehicle was taken to a Toyota dealership on March 11, 2026. We received an email on April 13, 2026 stating Toyota's inspection did not identify any evidence that this incident was a result of a concern with the operation of our vehicles gear shift lever. We retrieved our vehicle from the dealership on April 20, 2026. On April 21, 2026 From our driveway the shift lever fell out of park into drive with the ignition off, no keys, and the brake pedal not pressed. Toyota claims no responsibility! How is this possible when they know there are active recalls for the same issue on earlier models? This is a massive public safety risk considering the vehicle can rollaway without the ignition even being on! I will continue to report this issue every time the Shift lever falls out of park until resolved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732639April 21, 2026
SEATS
The contact owns a 2025 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 25V668000 (Seats); however, the part to do the recall repair was not yet available. The dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732806April 21, 2026
SERVICE BRAKES, HYDRAULIC
The contact owns a 2025 Toyota Sienna Hybrid. The contact stated that while driving downhill, the brake pedal was depressed, and the vehicle lurched forward. The failure reoccurred during the transition between braking and charging the braking system. No warning lights were illuminated. The vehicle was taken to the local dealer, but the dealer was unable to duplicate the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a service task. The failure mileage was approximately 25,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11732397April 20, 2026
SEATS
Toyota issued a recall in fourth quarter 2025 for this batch of Toyota Siennas that have bad welds on the second row seats and as a result of these, no one should be sitting in the second row. Toyota still doesn't have a fix in place for the 50k vehicles with this problem. Publicly Toyota says a fix is on the way, but at the dealership the service department has indicated that they've heard nothing on this. I am in a loaner from Toyota for the foreseeable future and it doesn't seem like I have much recouse through lemon laws based on the way Toyota issued the recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731849April 17, 2026
ELECTRICAL SYSTEM, ENGINE
The catalyst, the Evap and the EGR/VVT
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731879April 17, 2026
SERVICE BRAKES
2023 Toyota Sienna occasionally, without warning, "lurches" forward at low speeds when braking. While putting steady pressure on the brake when coming to a stop at a stop sign or traffic light etc. it feels as if the brakes stop applying pressure and if we wouldn't have quick reflexes to brake harder, we would roll out into the road or into the car in front of us. I believe it is something to do with the transition between regenerative braking (vehicle is a hybrid) and the hydraulic braking. I have spoken to Toyota, and they don't have any recall. People posting on online forums seem to believe there is a software update (T-SB-0047-24) that helps address the concern. Toyota charges to diagnose and apply software updates as the vehicle is out of warranty. I believe this to be a safety issue and something Toyota should cover. Based on my online search, there seems to be a lot of people with the same issue. This has been an ongoing issue the last couple of years and I'm thinking it should be reported. I have not brought this to a dealer to have diagnosed. These are largely family vehicles and my wife, and I don't feel very comfortable every time it happens.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731882April 17, 2026
STRUCTURE:BODY
I am filing a complaint regarding an unresolved safety recall for my 2025 Toyota Sienna involving the second-row seat welds. VIN: [XXX] NHTSA Recall ID: 25V668 Recall Date: October 7, 2025 Manufacturer/Dealer Recall Reference: 25TB12 This recall involves the structural integrity of the second-row seat welds. A failure of these welds could increase the risk of injury to occupants in the event of a crash or sudden stop. As of today, more than six months after the recall was issued, no remedy has been made available. I have not been provided with a repair, a timeline for when a fix will be available, or an adequate interim solution. On February 25, 2026, I brought my vehicle to the dealership, and it was placed out of service due to this recall. I was provided with a smaller loaner vehicle, which is not comparable to my Toyota Sienna and does not meet my transportation needs. This situation has left me without use of my vehicle for an extended period of time while also dealing with a known safety defect. I request that NHTSA review whether the delay in providing a remedy is reasonable and compliant with federal safety requirements, and whether additional action is necessary to protect vehicle occupants. All relevant vehicle details are included in this complaint. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731906April 17, 2026
STRUCTURE:BODY, VISIBILITY/WIPER
Rear windshield shattered between 4/16/2026, 10:04 AM and 4/16/2026, 6:43 PM without reason, no one near it to cause this broken windshield. I have Simplisafe camera that showed no one was near the car. See attached pictures.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731925April 17, 2026
POWER TRAIN
Loss of power highway speeds, jerky shifting, “sealed” transmission leaking fluid. Check engine light and service required light. I have noticed poor performance with this vehicle before and reported it to the dealer to no avail. Toyota has enacted “customer support program ZJC” but the dealership will not honor.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731539April 16, 2026
SEATS
The contact owns a 2025 Toyota Sienna Hybrid. The contact received notification of NHTSA Campaign Number: 25V668000 (Seats); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731557April 16, 2026
BACK OVER PREVENTION, SEATS
See attached document for complaint. My husband and I purchased a Sienna, 7-passenger van, April 2025 and have received two safety recalls, the first being the lack of second-row seats being installed correctly presenting a safety problem, and later a possible problem with the backup camera. We purchased a vehicle of that size especially for the convenience of transporting family when they visit. Also, we have a granddaughter, husband and one-year old great-grandson who live nearby and thought having a van would be helpful for trips together. Unfortunately, all our hopes were diminished at being able to enjoy the reason we purchased such an expensive vehicle, $65,000+. We are an elderly, retired couple, considered the vehicle an investment, because our two previous Toyota vehicles had lasted us for 15 years with no problems. Therefore hoping our daughter and grandchildren would be able to use the van for many years. The van has been nothing but an Albatross, not being able to drive it with only two passengers, in the front, since learning of the first recall on the second row seats. The local dealer told me if I’d get an appointment and be at their door at 7:00 a.m. they could repair the camera. BUT, dealers have no fix from Toyota for the second row seats. However, I went on line to the Toyota web site and they have a “FIX” process listed. I cannot imagine how a vehicle maker can be allowed to sell a vehicle when they find out it has such safety hazards? We consumers can beg our Legislators to pass laws to that effect, but, hope your agency will take the lead on protecting us consumers since we know this Congress will do nothing. I ask your agency to please take action on this issue and prod Toyota to do something concerning the major safety hazards with their 2025 model Sienna vans.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731560April 16, 2026
POWER TRAIN
2019 Sienna XLE with 77,000 miles has a UA80 Transmission is whining at the final gear per Imperial Toyota Milford MA service center. They want to replace the transmission for 9,000 USD and Toyota Corporate refuses assistance. It appear to be a common defect which could lead to transmission lockup if the gear fails.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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