2021 Toyota Prius Forward collision avoidance Problems
- Complaints
- 1about this part
- Share
- 17%of 6 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the forward collision avoidance of the 2021 Toyota Prius, 17% of the 6 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The Lane keeping assist used in radar cruise control mode during some drive cycles will attempt to maintain the vehicle position to the far extreme of the lane and in some cases actively veer out of the lane. My safety ant others can be put at risk when the vehicle behaves outside of its design parameters like this. To solve the issue the vehicle must be pulled over, turned off, then restarted. After the restart it will resume functioning normally, maintaining lane positioning as intended within the limits of the system. …”
NHTSA complaint #11532235, filed 2023-07Forward collision avoidance: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 19% |
| 2023 | 1 | 5% |
| 2021 | 1 | 17% |
| 2020 | 1 | 7% |
| 2019 | 4 | 13% |
| 2018 | 1 | 3% |
| 2017 | 1 | 1% |
| 2016 | 2 | 1% |
| 2015 | 7 | 4% |
| 2014 | 6 | 3% |
| 2013 | 12 | 3% |
| 2012 | 3 | 1% |
| 2011 | 5 | 1% |
| 2010 | 18 | 1% |
| 2009 | 5 | 1% |
| 2008 | 3 | 0% |
| 2007 | 1 | 0% |
| 2006 | 1 | 0% |
| 2004 | 1 | 0% |
Other parts of the 2021 Toyota Prius
2 complaintsFuel system
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsLane departure
1 complaintsOther or unknown
1 complaintsVehicle speed control
1 complaintsWheels
1 complaints
← All problems reported for the 2021 Toyota Prius
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology