2021 Tesla Model Y lane departure problems
74 owner complaints filed with NHTSA name the lane departure on the 2021 Tesla Model Y — 7% of all complaints for this model year.
What owners report
“Error ui_a020 "steering assist reduced" appears without any noticeable steering changes at the moment, but with a warning that steering may become increasingly harder and harder. There were recent recalls on other models of Tesla.”
filed Jul 9, 2026
“Safety features on vehicle stopped working after software update was pushed to my vehicle. GPS, all cameras including backup camera and ones used for blind spots, and cruise control have all stopped working. Time displays incorrectly due to GPS issue and night mode stays on so rear view & back…”
filed Jul 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Lane Departure problems in other Model Y years
| Year | Reports | Share |
|---|---|---|
| 2026 Model Y | 31 | 10% |
| 2025 Model Y | 16 | 18% |
| 2024 Model Y | 46 | 15% |
| 2023 Model Y | 77 | 7% |
| 2022 Model Y | 68 | 8% |
| 2020 Model Y | 29 | 11% |
Other reported problem areas on the 2021 Tesla Model Y
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.