2021 Nissan Sentra forward collision avoidance problems
38 owner complaints filed with NHTSA name the forward collision avoidance on the 2021 Nissan Sentra — 29% of all complaints for this model year.
What owners report
“My 2021 Nissan Sentra has experienced multiple false Automatic Emergency Braking (phantom braking) events where the vehicle suddenly applies the brakes despite there being no vehicle, pedestrian, or obstacle in its path. This issue occurred before and after my vehicle was serviced by AutoNation…”
filed Jul 18, 2026
“The scope of repair required fixing a recalled tie rod that suffered a catastrophic failure, which directly caused the vehicle’s ADAS, Advanced Emergency Braking (AEB), and collision detection systems to crash. Berman Nissan promised a legally compliant, safe repair but breached this agreement by…”
filed Jul 15, 2026
“Alternator needed replacement Front windshield needed replacement Unfortunately this kicked off the malfunction warning. All Nissan can say is it’s the ADAS 2 controller. They are unable to determine part numbers. However the alternator and windshield replacement kicked off the malfunction warning.”
filed Jun 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Forward Collision Avoidance problems in other Sentra years
| Year | Reports | Share |
|---|---|---|
| 2025 Sentra | 2 | 8% |
| 2022 Sentra | 13 | 16% |
| 2020 Sentra | 60 | 29% |
| 2019 Sentra | 35 | 16% |
| 2018 Sentra | 24 | 13% |
| 2017 Sentra | 2 | 1% |
| 2016 Sentra | 5 | 2% |
| 2015 Sentra | 1 | 0% |
| 2014 Sentra | 1 | 0% |
| 2013 Sentra | 1 | 0% |
Other reported problem areas on the 2021 Nissan Sentra
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.