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
01 —By component

Complaints by component

One complaint can cite several components
  1. Power train7
  2. Fuel/propulsion system7
  3. Structure6
  4. Fuel system, gasoline6
  5. Engine5
  6. Electrical system4
  7. Air bags3
  8. Vehicle speed control3
  9. Seat belts2
  10. Exterior lighting2
  11. Latches/locks/linkages1
  12. Chest clip, buckle, harness1
  13. Tires1
  14. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20196
202012
20213
202211
20234
20241
20254
20265

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.

03 —Owner reports

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.”
Owner complaint to NHTSAFiled Apr 16, 2026Power trainODI 11731560

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…”
Owner complaint to NHTSAFiled Jun 21, 2023Power train, Engine, Fuel/propulsion systemODI 11528072

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.”
Owner complaint to NHTSAFiled Jan 30, 2026StructureODI 11714572

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.”
Owner complaint to NHTSAFiled Jun 30, 2020Fuel system, gasolineODI 11331738

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”
Owner complaint to NHTSAFiled Jun 16, 2020Fuel system, gasoline, EngineODI 11329283

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”
Owner complaint to NHTSAFiled Dec 29, 2022Electrical system, Unknown or otherODI 11499369
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.