2021 Tesla Model Y electrical system problems
140 owner complaints filed with NHTSA name the electrical system on the 2021 Tesla Model Y — 13% of all complaints for this model year.
What owners report
“On June 7, 2026, my 2021 Tesla Model Y with approximately 37,131 miles became completely unresponsive and could not be driven. Tesla Mobile Service replaced the 12V low-voltage battery on June 11, 2026. The official repair notes stated that the battery was replaced, proper operation was verified…”
filed Aug 2, 2026
“My 2021 Tesla Model Y (VIN: [XXX]) experienced a serious safety malfunction during a 12V low‑voltage failure. When the vehicle displayed the 12V alert, it became non‑functional. Upon entering, no systems were operating. When I pressed the brake pedal, the interior lights flashed and both front…”
filed Jul 31, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Hood latch assembly may fail to detect an unlatched hood condition after the hood has…Campaign 24V554000 · Jul 24, 2024
- An incorrect font size is displayed on the instrument panel for the Brake, Park, and…Campaign 24V051000 · Jan 30, 2024
- In certain circumstances when Autosteer is engaged, the prominence and scope of the…Campaign 23V838000 · Dec 12, 2023
- A software error may cause a valve in the heat pump to open unintentionally and trap the…Campaign 22V050000 · Feb 2, 2022
Related service bulletins
On certain Model S, Model X and Model Y vehicles, the interior camera requires replacement to mitigate reduced driver attentiveness detection performance in low-light conditions.
SB-24-17-005 · Service Bulletin/Repair Instructions · issued Apr 3, 2025On certain Model S, Model X and Model Y vehicles, the interior camera requires replacement to mitigate reduced driver attentiveness detection performance in low-light conditions.
SB-24-17-005 · Service Bulletin/Repair Instructions · issued Jan 16, 2025
Electrical System problems in other Model Y years
| Year | Reports | Share |
|---|---|---|
| 2026 Model Y | 47 | 16% |
| 2025 Model Y | 16 | 18% |
| 2024 Model Y | 58 | 19% |
| 2023 Model Y | 109 | 10% |
| 2022 Model Y | 115 | 14% |
| 2020 Model Y | 26 | 10% |
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.