Head-to-head reliability
Toyota Prius vs Toyota Sienna
How the Toyota Prius and Toyota Sienna compare on NHTSA complaints, recalls and crash reports — and which is the lower-risk used buy.
Based on NHTSA owner-complaint & recall records
Toyota Prius vs Toyota Sienna: The Prius averages 26.8 complaints per year, while the Sienna averages 76.9. Prius owners report brake and electrical issues, while Sienna owners face seat and powertrain problems. The Sienna has more recalls (44 vs 20). Source: NHTSA owner complaints.
The picture
Is the Toyota Prius or Toyota Sienna more reliable?
A plain-English read on what the NHTSA record says about living with each vehicle.
Toyota Prius
The Toyota Prius, a hybrid hatchback, shows a moderate complaint rate of about 27 per year over the past decade. Owners report issues that can affect daily usability, such as loud speaker noises, brake pedal feedback, and visibility concerns. While not overwhelming, these complaints suggest a need for careful inspection of specific systems.
Toyota Sienna
The Toyota Sienna, a minivan, has a higher complaint rate of about 77 per year, with a significant focus on seat problems. Owners describe issues like seats not adjusting properly or moving unexpectedly, which can be a safety concern. Other complaints involve powertrain stalling and brake skidding, indicating potential reliability challenges.
The numbers
Side-by-side NHTSA record
Lower is better in every category. The highlighted cell is the stronger result.
| Category | Toyota Prius | Toyota Sienna |
|---|---|---|
| Total complaintsAll model years combined | 268 Better | 769 |
| Safety recallsFederal recall campaigns | 20 Better | 44 |
| Crash reportsCrash-related complaints | 42 | 36 Better |
| Complaints per yearAveraged across model years | 26.8 Better | 76.9 |
| Reported injuriesTied to owner complaints | 23 Better | 45 |
| Reported deathsTied to owner complaints | 1 | 1 |
Source: NHTSA owner complaints & recall records.
What actually goes wrong
The problems owners report
The most-complained-about systems on each vehicle — what fails, and what owners say in their own words.
Toyota Prius
- 01UNKNOWN OR OTHER50
- 02SERVICE BRAKES45
- 03ELECTRICAL SYSTEM44
- 04VISIBILITY/WIPER28
- 05VEHICLE SPEED CONTROL27
Owners report scratching or rubbing noises from the brakes, with the pedal becoming hard to push, sometimes leading to near-misses. This suggests possible brake booster or master cylinder issues that could affect stopping power.
A notable complaint is an extremely loud, ear-piercing noise from the speakers on startup, which can be startling and potentially damaging to hearing. This points to an audio system or electrical glitch that occurs randomly.
Taller drivers complain about reduced visibility due to the rear window, side mirrors, and large rear pillar, making blind spot checks difficult. The electronic blind spot detection is also reported as intermittent, which could increase the risk of side collisions.
“Extremely loud, ear-piercing noise from speakers when the vehicle is started. Lasts about two to three seconds. My ears have been damaged by it. My young boys cried while in their car seats and said that their ears hurt. Noise occurs randomly. Dealer states t…”
“My 2022 Prius LE hood latch does not work. It does not click and hood stays locked. They told me at Walmart that the hood latch is probably corroded somewhere or defective. It takes two people to open the hood. My vehicle has 54,490mi. This has happened twice…”
Toyota Sienna
- 01SEATS236
- 02UNKNOWN OR OTHER119
- 03POWER TRAIN77
- 04SERVICE BRAKES73
- 05STRUCTURE61
The most frequent issue involves second-row captain's chairs that can slide or tip forward during braking, especially when not properly latched. Also, seat height adjustment is limited, causing head impacts for taller occupants during turns or braking.
Owners report intermittent shuddering, RPM needle jumping, and even sudden engine shutdowns while driving, which can lead to loss of power and dangerous situations, especially when carrying passengers.
Brake issues include the vehicle skidding during turns at low speeds with the ABS light on, and abnormal sounds from the brakes. This suggests potential ABS or traction control malfunctions that could compromise stability.
“While driving my new 2026 Toyota Sienna Woodland Edition home from the dealership on the day of purchase (XXX), I applied routine braking to stop at a yellow light. Both second-row captain's chairs, which had been slid fully rearward and left in the upright p…”
“Seat height not adjusting is ludicrous and a hazard! My husband is 6'4", my sons, 6'1", they seat height is not safe and braking/turns cause them to hit their heads. This could be life threatening in a real accident. There should be a lower profile seat that…”
Official recalls
Safety recalls on record
Federal recall campaigns — the defect, the risk, and the fix. Confirm any open recall was completed before you buy.
Toyota Prius — 20 recalls
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2019 Lexus LS500, LC500, ES300h, UX250h, LS500h, Toyota Prius, RAV4 HV, 2019-2020 Toyota Prius Prime, and 2020 Corolla HV vehicles. The brake booster pump may fail causing a deactivation of the Vehicle Stability Control system a…
The risk: Deactivation of the vehicle stability control system or a loss of braking assist increases the risk of a crash.
The fix: Toyota will notify owners, and dealers will inspect and, if necessary, replace the brake booster pump, free of charge. The recall began September 20, 2019. Toyota owners may contact Toyota customer service at 1-888-270-9371 and Lexus owner…
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022-2026 Toyota, Lexus, and Subaru Solterra vehicles equipped with a Panoramic View Monitor (PVM) system. Please see the recall report for a complete list of models. A software error may cause the rearview camera to freeze or d…
The risk: A rearview camera that fails to display an image can reduce the driver's view behind the vehicle, increasing the risk of a crash.
The fix: Dealers will update the parking assist software, free of charge. Owner letters were mailed January 2, 2026. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's numbers for this recall are 25TB13 and 25LB06. Subaru's nu…
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Prius Prime, 2023-2026 Prius, and 2025-2026 Prius Plug-in Hybrid vehicles. Water may enter the rear door switch and cause a short circuit, allowing an unlocked rear door to open unexpectedly.
The risk: A door that unexpectedly opens while the vehicle is moving increases the risk of injury.
The fix: Dealers will modify the rear door switch circuits, free of charge. Owner letters were mailed July 13, 2026. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's numbers for this recall are 26TB03 and 26TA03. This recall…
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2022 Prius and Prius Prime vehicles. The Engine Control Unit (ECU) software may falsely detect an error and shut down the hybrid system, causing a loss of drive power.
The risk: A loss of drive power increases the risk of a crash.
The fix: Dealers will update the ECU software, free of charge. Owner notification letters were mailed November 18, 2021. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 21TB07/21TA07.
Toyota Sienna — 44 recalls
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2…
The risk: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
The fix: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models wil…
The defect: Braun Corporation (Braun) is recalling certain modified 2017-2020 Toyota Sienna vehicles. The steering shaft extensions may have been improperly manufactured, possibly causing the extensions to fracture.
The risk: If the steering shaft extension completely fractures, it can cause a loss of steering, increasing the risk of a crash.
The fix: Braun has notified owners, and dealers will replace the steering shaft extensions, free of charge. The recall began July 25, 2019. Owners may contact Braun customer service at 1-800-488-0359.
The defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 4Runner, 2019-2020 Avalon, 2019 Corolla Hatchback, 2017-2019 Highlander, 2018-2020 Camry, 2020 Corolla, 2018-2019 Land Cruiser, 2017-2020 Tacoma, 2019-2020 RAV4, 2019-2020 Sequoia, 2017-2020 Sienna, 2019-2020 Tundra, 2…
The risk: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
The fix: Toyota will notify owners, and dealers will replace the fuel pump assembly with an improved one, free of charge. Owners of specific models were notified that remedy parts were available starting January 21, 2021. Owners of other models wil…
The defect: Toyota Motor Engineering & Manufacturing (Toyota) recalled certain 2018-2019 4Runner, Highlander, Camry, Land Cruiser, Sequoia, Sienna, Tacoma and Tundra, and Lexus RC 300, RC 350, GS 350, GX 460, IS 300, LC 500, LS 500, LX 570, RX 350L, and 2019 Toyota Avalon and Corolla, and certain Lexus NX 300,…
The risk: If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.
The fix: Toyota will notify owners, and dealers will replace the fuel pump, free of charge. The recall began May 4, 2020. Owners may contact Toyota customer service at 1-888-270-9371 or Lexus customer service at 1-800-255-3987. Toyota's numbers for…
Buyer analysis
Toyota Prius or Toyota Sienna: which should you buy?
The Toyota Prius has fewer complaints per year (about 27) compared to the Toyota Sienna (about 77), indicating a lower frequency of reported issues. However, the Sienna's complaints are more concentrated on safety-critical areas like seats and powertrain, which may be more concerning for families.
Key differences
- The Sienna has a much higher complaint rate (77/yr) than the Prius (27/yr), suggesting more frequent problems.
- Sienna's top issue is seats (236 complaints), including unexpected movement and poor adjustability, which is a safety concern for passengers.
- Prius's top issues are brakes and electrical, with specific problems like hard brake pedal and loud speaker noise.
- Sienna has more recalls (44) than Prius (20), indicating more widespread defects over time.
- Test the brakes for any unusual noises or a hard pedal, as owners report these issues.
- Check the audio system for any loud pops or static on startup, which could indicate an electrical problem.
- Inspect the second-row seats for proper latching and adjustment, and ensure they don't move unexpectedly during braking.
- Listen for any shuddering or RPM fluctuations during a test drive, and check for any warning lights related to the powertrain.
Before you buy
- For the Prius, have a mechanic inspect the brake system, including the booster and master cylinder, for any signs of failure.
- For the Prius, test the audio system multiple times to see if the loud noise occurs, and check for any pending recalls.
- For the Sienna, verify that all seats, especially the second-row captain's chairs, latch securely and adjust properly.
- For the Sienna, take the vehicle on a test drive that includes turns and braking to check for any skidding or abnormal behavior.
- Check the NHTSA website for open recalls on both vehicles and ensure they have been addressed.
Year by year
Which model years to avoid
Complaints per model year for both vehicles — lower is better. The spikes are the years to scrutinize.
| Year | Toyota Prius | Toyota Sienna |
|---|---|---|
| 2026 | 9 | 13 |
| 2025 | 16 | 265 |
| 2024 | 23 | 65 |
| 2023 | 19 | 66 |
| 2022 | 24 | 15 |
| 2021 | 6 | 40 |
| 2020 | 14 | 38 |
| 2019 | 30 | 45 |
| 2018 | 36 | 69 |
| 2017 | 91 | 153 |
Check the actual car
Comparing models is smart. Checking the VIN is essential.
Brand averages tell you the trend. A VIN check tells you what's wrong with the specific Toyota Prius or Toyota Sienna in front of you — accident history, open recalls and title records.
Go deeper
Full reliability reports
- Comparison
- Toyota Prius vs Toyota Sienna
- Toyota Prius total complaints
- 268
- Toyota Sienna total complaints
- 769
- Toyota Prius total recalls
- 20
- Toyota Sienna total recalls
- 44
- Toyota Prius avg complaints/year
- 26.8
- Toyota Sienna avg complaints/year
- 76.9
- More reliable overall
- Toyota Prius
- Toyota Prius top complaint area
- UNKNOWN OR OTHER
- Toyota Sienna top complaint area
- SEATS