2024 Toyota SIENNA HYBRID problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
68 owner complaints analyzed
3 distinct recall campaigns
17,826 mi median reported failure mileage
Scope: 2024 model year. Data snapshot: . 9 complaints include usable failure mileage.
Most common problems
Service Brakes is the most frequently named component, appearing in 16 of 68 complaints (23.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 26 | 38.2% |
| Engine operation | 2 | 2.9% |
| Transmission and shifting | 1 | 1.5% |
| Electrical and battery issues | 1 | 1.5% |
| Steering behavior | 1 | 1.5% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Service Brakes | 16 |
| Unknown Or Other | 16 |
| Engine | 7 |
| Vehicle Speed Control | 7 |
| Seats | 5 |
| Forward Collision Avoidance: Warnings | 4 |
| Power Train | 4 |
| Structure:Body | 4 |
Service Brakes: 16; Unknown Or Other: 16; Engine: 7; Vehicle Speed Control: 7; Seats: 5; Forward Collision Avoidance: Warnings: 4; Power Train: 4; Structure:Body: 4
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 6 |
| 25,000 to 49,999 | 2 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 6; 25,000 to 49,999: 2; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (6). 59 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2024 | 15 |
| 2025 | 31 |
| 2026 | 22 |
2024: 15; 2025: 31; 2026: 22
Pattern summary
Service Brakes leads the component reports. Braking behavior appears in 26 complaint narratives. Engine operation appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11577720 · 2024-03-16 (March 16, 2024)
Vehicle was driving on a slow traffic local street at roughly 10MPH. Spacing between car in front of me was around 30 ft. I was gliding towards front and ready to brake. Suddenly the vehicle start to accelerate hard by itself without driver’s operation. I tried to engage brake / gas pedal and was not helping. Front collision system did not activate like it suppose to. I ended up turn sharp right towards road curb and hit pole at average speed of 30mph or less. No air bag deployed. I then switch to Park. No warning lights pop up. All safety feat…
Owner-reported narrative. Look up ODI 11577720 at NHTSA ↗
Owner report 11592492 · 2024-06-04 (June 4, 2024)
I was at a complete stop. There were no obstacles around me or oncoming. When I pressed the accelerator nothing happened for a full 3 seconds, until my vehicle jolted forward at an excessive speed. Brakes were not working.
Owner-reported narrative. Look up ODI 11592492 at NHTSA ↗
Owner report 11669326 · 2025-06-25 (June 25, 2025)
On June 5 th the vehicle was going approximately 50 miles per hour in the middle lane. I placed on the brakes suddenly and car lost power and stalled out. Unable to restart vehicle for 5-10 minutes on the freeway. Significant safety concern due to vehicles sudden stall out in mid the highway traffic and unable to restart car. Almost hit from behind as well as others that followed from behind. On Jun 7th vehicle was taken to the Toyota dealership and car checked by special mechanic and reported that they were unable to reproduce the stalling o…
Owner-reported narrative. Look up ODI 11669326 at NHTSA ↗
Owner report 11715215 · 2026-02-03 (February 3, 2026)
The contact owns a 2024 Toyota Sienna. While the contact’s wife was driving 5 MPH out of a parking lot and attempting to make a left turn, the vehicle suddenly lost motive power and stalled. After approximately 3- 4 seconds while depressing the accelerator pedal several times, the vehicle eventually accelerated as needed. The vehicle was driven to the residence. There were no warning lights illuminated. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was …
Owner-reported narrative. 68,000 miles reported. Look up ODI 11715215 at NHTSA ↗
Owner report 11659596 · 2025-05-07 (May 7, 2025)
The contact owns a 2024 Toyota Sienna Hybrid. The contact stated that while the vehicle was parked, the transmission was shifted into reverse, and the rear end of the vehicle vibrated abnormally. The vehicle was taken to an independent mechanic but was not diagnosed or repaired. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was not available.
Owner-reported narrative. Look up ODI 11659596 at NHTSA ↗
Owner report 11750825 · 2026-07-16 (July 16, 2026)
Rear Tail Lights Failed... Brake and Signals work. This was repaired through the dealership. 4 connectors and housing replaced invoice shows part 909890-10942. I am writing to express my concern regarding repeated tail light failures on my black Toyota Sienna that appear to be caused by wiring connection issues. This defect creates a serious safety hazard for my family, other motorists, and pedestrians, particularly in rural areas where there is little to no street lighting. I live in the country, where many roads are unlit and visibility a…
Owner-reported narrative. Look up ODI 11750825 at NHTSA ↗
Owner report 11580241 · 2024-03-30 (March 30, 2024)
Excessive heat coming from all vents and under steering wheel after long time driving. I am very concerned that the vehicle may be caught on fire and then cause injuries or casualties.
Owner-reported narrative. Look up ODI 11580241 at NHTSA ↗