2021 Subaru Ascent lane departure problems
15 owner complaints filed with NHTSA name the lane departure on the 2021 Subaru Ascent — 15% of all complaints for this model year.
What owners report
“The lane assist failed by over correcting while I have my hands on the steering wheel. It over corrects to the center lane when you are driving with normal behavior. This can cause a collision if it were to over correct while a car was there, this is also easily reproducible in my car.”
filed Jun 8, 2025
“I have a 2021 Subaru Ascent that falls under an extended warranty regarding the windshield due to a faulty windshield. My windshield has cracked, reduce visibility, and does not allow the forward collision warning to work properly. Subaru recognizes the faulty windshield and refuses to remedy the…”
filed Jun 5, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Lane Departure problems in other Ascent years
| Year | Reports | Share |
|---|---|---|
| 2023 Ascent | 2 | 5% |
| 2022 Ascent | 3 | 5% |
| 2020 Ascent | 4 | 1% |
| 2019 Ascent | 2 | 0% |
Other reported problem areas on the 2021 Subaru Ascent
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.