2020 Toyota 4RUNNER Forward collision avoidance Problems
- Complaints
- 3about this part
- Share
- 9%of 33 total for the year
- Median mileage
- 20,850miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the forward collision avoidance of the 2020 Toyota 4RUNNER, 9% of the 33 complaints for this model year. Where a mileage was given, the median is 20,850 miles. 1 of these say a crash was involved, according to the filers.
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.
“On december 8 , 2020, the above referenced vehicles engine stalled three times while in driving mode. On all three occasions, the vehicle was moving at a speed less than 40 MPH. The vehicle restarted after each stall, when the gear shifter was placed in park. The vehicle seemed to be running out of fuel and/or having fuel pump problems. The fuel level of the vehicle was half full. I purchased the vehicle october 21, 2020. Todate, I have experienced 5 engine stalls.the vehicle had approximately 28.700 miles. …”
NHTSA complaint #11382741, filed 2020-12, 28,700 miles“System malfunction—the ‘brake’ alert flashed and chirped when there was NO obstacle on the road. Safety issue—I was about to hit the brakes but I realized in time there was no need. Confirmed? No not at this time. Possibly have it reviewed at next maintenance. No inspection yet. This has occurred infrequently in the past”
NHTSA complaint #11533113, filed 2023-07“The contact owned a 2020 Toyota 4runner. The contact stated that while the driver who was her father crashed into another vehicle, the air bags failed to deploy. In addition, the contact stated that the braking alert for getting too close to a vehicle failed to illuminate. A police report was filed. The contact stated that the driver sustained two injuries and the contact sustained two injuries. Medical attention was sought. The contact was unaware of the other passengers from the other vehicle sustained any injuries. The vehicle was damaged and towed to a tow lot. …”
NHTSA complaint #11440934, filed 2021-11, 13,000 milesRelated service bulletins
- 10247828Nov 28, 2023TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision…
- 10187245Dec 15, 2020TSB: All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra and 2020 ? 2021 model year 4Runner vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise…
- 10186199Dec 15, 2020TSB: All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra and 2020 ? 2021 model year 4Runner vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise…
- 10173968Mar 18, 2020TSB: All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra vehicles and All 2020 ? 2021 model year 4Runner vehicles are equipped with Pre-collision System (PCS) and Dynamic…
Forward collision avoidance: other model years
Other parts of the 2020 Toyota 4RUNNER
9 complaintsAir bags
5 complaintsBrakes
5 complaintsSteering
4 complaintsSuspension
4 complaintsBack-over prevention (rear camera)
3 complaintsExterior lighting
2 complaintsBody and structure
2 complaintsWheels
2 complaintsElectrical system
1 complaintsElectronic stability control
1 complaintsFuel system
1 complaints
← All problems reported for the 2020 Toyota 4RUNNER
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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