Toyota Prius 2016–2022
4th generation (XW50)
NHTSA data through 12 August 2026505 complaints, 301 with mileageMethod
On this generation, 44% of failures fall within the first 12,000 miles — a rate roughly 7 times higher than during the rest of the car's life.
- First 12,000 miles — 44% of all failures
- Rest of the range
- Median
- 200,000+ — 4 complaints (1.3%), plotted separately
- 10%
- 500
- 25%
- 4,500
- Median
- 15,140
- 75%
- 29,000
- 90%
- 70,000
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–10,000 | 120 | 39.9% |
| 10,000–20,000 | 64 | 21.3% |
| 20,000–30,000 | 44 | 14.6% |
| 30,000–40,000 | 20 | 6.6% |
| 40,000–50,000 | 13 | 4.3% |
| 50,000–60,000 | 4 | 1.3% |
| 60,000–70,000 | 4 | 1.3% |
| 70,000–80,000 | 9 | 3.0% |
| 80,000–90,000 | 7 | 2.3% |
| 90,000–100,000 | 3 | 1.0% |
| 100,000–110,000 | 2 | 0.7% |
| 120,000–130,000 | 1 | 0.3% |
| 150,000–160,000 | 3 | 1.0% |
| 160,000–170,000 | 1 | 0.3% |
| 170,000–180,000 | 1 | 0.3% |
| 180,000–190,000 | 1 | 0.3% |
| 200,000+ | 4 | 1.3% |
What this can and cannot tell you: these are complaints owners chose to file, not a failure rate. Popular models accumulate more of them simply by being common. How this is built.
Owners filed 505 complaints with NHTSA about the 2016–2022 Toyota Prius, and 301 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
44% of failures fall within the first 12,000 miles — a rate roughly 7 times higher than during the rest of the car's life. Failures clustered that early usually indicate a design or manufacturing problem rather than wear.
The most-reported areas are visibility/wiper (12.9% of complaints, typically around 17,000 miles), problems owners could not categorise (12.9% of complaints, typically around 5,500 miles), the brakes (10.5% of complaints, typically around 9,000 miles).
10 recall campaigns cover this generation.
What fails, and when
- Visibility/wiper17,000median 17,029 miles, middle half 9,500 to 26,000
- Problems owners could not categorise5,500median 5,600 miles, middle half 1,000 to 18,000
- Brakes9,000median 8,800 miles, middle half 1,500 to 17,000
- Electrical system18,000median 18,150 miles, middle half 2,000 to 55,000
- Engine17,000median 17,420 miles, middle half 5,000 to 71,000
- Throttle and speed control14,000median 14,250 miles, middle half 7,500 to 28,000
- Transmission and driveline23,000median 23,000 miles, middle half 15,000 to 40,000
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Visibility/wiper | 65 | 12.9% | 17,000 | 9,500–26,000 |
| Problems owners could not categorise | 65 | 12.9% | 5,500 | 1,000–18,000 |
| Brakes | 53 | 10.5% | 9,000 | 1,500–17,000 |
| Electrical system | 46 | 9.1% | 18,000 | 2,000–55,000 |
| Engine | 41 | 8.1% | 17,000 | 5,000–71,000 |
| Throttle and speed control | 37 | 7.3% | 14,000 | 7,500–28,000 |
| Transmission and driveline | 24 | 4.8% | 23,000 | 15,000–40,000 |
| Body structure | 23 | 4.6% | 10,000 | 5,000–20,000 |
| Fuel and propulsion system | 23 | 4.6% | 18,000 | 5,000–40,000 |
| Airbag system | 22 | 4.4% | 16,000 | 4,000–45,000 |
Which systems, and when
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 15,140 miles; the figures below show which parts of the car run ahead of that and which run behind.
Visibility/wiper accounts for 12.9% of complaints (65 reports, 54 of them with a mileage figure), with a median of 17,029 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 9,500 and 26,000 miles.
Problems owners could not categorise accounts for 12.9% of complaints (65 reports, 32 of them with a mileage figure), and it fails early — a median of 5,600 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 1,000 and 18,000 miles.
The brakes account for 10.5% of complaints (53 reports, 35 of them with a mileage figure), and they fail early — a median of 8,800 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 1,500 and 17,000 miles.
The electrical system accounts for 9.1% of complaints (46 reports, 24 of them with a mileage figure), with a median of 18,150 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 2,117 and 55,000 miles.
The engine accounts for 8.1% of complaints (41 reports, 16 of them with a mileage figure), with a median of 17,420 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 5,000 and 71,000 miles.
Throttle and speed control accounts for 7.3% of complaints (37 reports, 28 of them with a mileage figure), with a median of 14,250 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 7,400 and 28,000 miles.
Differences between model years
Within this generation, complaint volume is not constant across model years. The 2016 model year drew the most — 215 complaints — while 2020 drew the fewest at 23. The median year sits at 49.
That makes 2016 an outlier: roughly 4.4 times the median year of this generation. A single year standing that far apart usually reflects either a first-year issue that was later corrected, or a component change introduced for that year. Anyone shopping this generation has a straightforward reason to prefer a different year, all else being equal.
Recalls and what they cover
NHTSA records 10 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.
The campaigns cluster around the electrical system (2), the airbag system (2), the engine and its cooling system (1). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.
Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.
Reported severity
Of the 505 complaints filed against this generation, 78 reported a crash; 6 reported a fire; 44 reported an injury. Crash-involved reports represent 15.4% of the total.
These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.
What this means if you are buying one
For a buyer, an early-failure pattern is comparatively good news on a used example: 44% of the reported failures occur in the first 12,000 miles, which on a car of this age means they have already happened or they were never going to. Service history matters more than mileage here.
On inspection, visibility/wiper and problems owners could not categorise are where this generation's reports concentrate, so those are the areas worth a specific look. Problems owners could not categorise in particular shows a median failure mileage of 5,600, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
Documented problems
Wiring Harness (engine Compartment) 2016–2018
Engine-compartment wire harness connected to the hybrid power control unit can chafe against the housing, wear through insulation and short, producing smoke or fire; large Toyota recall covering the early years of the generation.
Parking Brake 2016–2018
Parking brake cable can fail to engage properly, allowing the vehicle to roll away when parked without the transmission in Park; NHTSA recall.
Inverter / Hybrid Control 2016–2018
Inverter and hybrid system control software fault could cause the hybrid system to shut down and the vehicle to lose power while driving; recall issued.
By model year
| Year | Complaints | With mileage |
|---|---|---|
| 2016 | 215 | 135 |
| 2017 | 127 | 94 |
| 2018 | 45 | 32 |
| 2019 | 53 | 22 |
| 2020 | 23 | 6 |
| 2021 | 11 | 5 |
| 2022 | 31 | 7 |
Recalls (10)
| Campaign | Date | Component |
|---|---|---|
| 21V734000 | 2021-11-18 | Engine and Engine Cooling:engine:engine Control Module (ecu/Ecm):software |
| 19V876000 | 2020-02-07 | Electrical System: Instrument Cluster/Panel |
| 19V544000 | 2019-09-20 | Service Brakes |
| 19V244000 | 2019-05-24 | Equipment:other:labels |
| 18V579000 | 2018-10-30 | Electrical System:wiring |
| 18V085000 | 2018-03-30 | Air Bags:side/Window |
| 17V658000 | 2017-12-15 | Hybrid Propulsion System: Inverter |
| 17V295000 | 2017-06-15 | Tires:temporary/Emergency Spare Tire |
| 16V741000 | 2016-11-10 | Parking Brake |
| 16V672000 | 2016-11-10 | Air Bags:frontal:passenger Side:inflator Module |
What owners reported
Vehicle feels like it wants to go forward as soon as the gas engine turns on to charge the hybrid battery when it is stationary, is in park gear with the foot parking brake fully on and on a flat surface. When the car is running off of battery mode and the battery becomes depleted the gas engine turns on to charge…
2016 · 2 miles · Brakes
There is an ongoing issue with the head rests on this vehicle. The default setting is much too far forward, causing a forward head and neck posture, resulting in headaches, neck pain, etc., And make it very uncomfortable to drive, and difficult to check blind spots. It also forces the driver's head very close the…
2016 · 12 miles · Seats
Tl* the contact owns a 2015 Toyota Prius. The contact stated that the driver's head rest positioning in the vehicle was too forward making it impossible to drive for long periods of time without severe discomfort. The vehicle was not taken to be diagnosed or repaired. The manufacturer was notified of the failure. The…
2016 · 50 miles · Seats
I purchased a new 2016 Prius four on february 16, 2016. The literature on the Toyota factory website says my Prius is equipped to switch from english to metric units. Unfortunately, Toyota failed to disclose that any Prius manufactured in january and february and delivered to the united states did not have this…
2016 · 97 miles · Electrical system
Built from 301 NHTSA complaints with mileage · snapshot 2026-08-12 · open data · reproduce this page