Electrics
5 article(s) on «Electrics». Sorted by severity — most severe first.
Model S/X MCU1 (Tegra): eMMC wear — prevention and recovery
Classic MCU1 issue: 8 GB eMMC wear → black screen/glitches, connectivity/charge issues. Better to preventively swap the chip for 64–128 GB.
12V (16V) battery: bricking and recovery
The 12V battery is a frequent cause of a fully bricked Tesla. How to jump-start, replace, and which alternatives fit.
Tesla charge port won't open or close: motor and latch failures, error fixes (2026)
Tesla charge-port problems after 100–150k km: door won't open from the app, won't close after charging, the screen shows 'Charge port latch not engaged' with a flashing orange logo, or the latch jams the connector in. Which assembly fails first (door motor vs latch pin), the replacement parts and procedure, typical repair cost.
Tesla matrix LED headlights: flicker, dead pixels, burnt segments — repair vs replace (2026)
Matrix LED problems on Tesla Refresh S/X (2021/2022+), Model 3 Highland (late 2023+) and Model Y Juniper (2025+): high-beam flicker on the highway, dark holes in the beam pattern, full-segment failure, 'Headlight system fault' on the cluster. Which symptoms are software bugs that firmware fixes, which are driver-chip burnouts requiring a full headlight swap, and why US cars had matrix hardware but no adaptive function until 2024.
Window regulator not working — diagnosis and repair
Window regulator fails: window won't go up or drops on its own. Calibration, reboot and mechanism replacement.