Problems · NHTSA complaints
2019 Toyota Sienna problems
Owners filed 46 complaints about the 2019 Toyota Sienna with NHTSA between Mar 2019 and Oct 2026. The most-cited component is power train (7).
Complaints
46
Filed with NHTSA
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
4
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Power train7
- Fuel/propulsion system7
- Structure6
- Fuel system, gasoline6
- Engine5
- Electrical system4
- Air bags3
- Vehicle speed control3
- Seat belts2
- Exterior lighting2
- Latches/locks/linkages1
- Chest clip, buckle, harness1
- Tires1
- Visibility1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 3, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
6
12
3
11
4
1
4
5
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2019 | 6 |
| 2020 | 12 |
| 2021 | 3 |
| 2022 | 11 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 5 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Power train
7 reports
“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.”
Fuel/propulsion system
7 reports
“Car was recalled for fuel pump and I repaired in 8/2020 with approximately 11,190 miles. I had complained that car, since time of purchase and had 4662 miles when I insisted Toyota fix this, (hunted for gears, hesitated, lagged when accelerator pushed, and had poorer gas mileage than expected). The car now has 34,875 miles on it and is doing the same thing, hesitating, lunging between gears. Our mechanic confirmed this and stated worse when using a.c. Called Toyota Customer Service and they said the car was out of warranty for the pump repair, but perhaps not the power train, transmission, etc. Have not gotten back to me yet, but has not been one working day after spending 2.5 hours on the phone with them yesterday. This is a safety issue, I press on the gas to make a turn and it lags leaving me in traffic. My 2007 Sienna, which is still running for my daughter, never did this and has full power when called upon. Toyota needs to repair the entire fuel system, transmission, if they cannot fix this. There are no warning lights when this happens & it is happening more frequently. Dealership told me they could not put another pump on car and to contact Toyota…”
Structure
6 reports
“About 2 years after the 9/30/2019 purchase (new), the paint on the front engine hood began peeling & cracking. Calls to Parks Toyota were ineffective. Now the entire hood has pervasive cracks. The hood needs to be removed, sanded & painted with a more substantial, long-lasting paint. The paint used is supposed to contain an additional clear coat for protection.”
Fuel system, gasoline
6 reports2 related recalls
“TL* THE CONTACT OWNS A 2019 TOYOTA SIENNA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V012000 (FUEL SYSTEM, GASOLINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. ALAMO TOYOTA LOCATED AT 18019 NORTH U.S. HWY 281, SAN ANTONIO, TX 78232, (210)494-1604, WAS CONTACTED AND CONFIRMED THAT PARTS WERE NOT YET AVAILABLE. THE CONTACT STATED THAT THE VEHICLE WAS MODIFIED TO TRANSPORT HER DAUGHTER WHO WAS WHEELCHAIR BOUND. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.”
Engine
5 reports
“TOYOTA NOTIFIED OWNERS OF A FUEL PUMP PROBLEM IN JANUARY 2020. IT IS NOW 6 MONTHS LATER AND TOYOTA STILL DOES NOT HAVE A FIX FOR THIS PROBLEM. I AM UNABLE TO SAFELY USE MY CAR AND NOT EVEN THE TOYOTA DEALERSHIP WILL OFFER ME ENOUGH MONEY TO COVER MY LOAN IN ORDER TO SELL THE CAR. I AM PAYING $600 A MONTH FOR A CAR I CAN'T USE AND CAN'T SELL. *TR”
Electrical system
4 reports
“The microphone has an issue and it is tied to the SOS call button in the car. I asked my dealership, they wanted to charge $200 to run a diagnostic scan, I contacted Toyota directly, they basically said the dealer can charge it if they want and reverse the charge if they find a problem under warranty. I originally thought the issue was with the Blue Tooth. I found this video on YouTube, his fix did work-my concern is, if I had needed Emergency help-the button would not have called anyone, disconnecting your car battery is NOT something I should I have to do to fix a 2019 vehicle. https://www.youtube.com/watch?v=FkAdMRKHS_0”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.