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🟡 PARTIAL: Tesla Model 3 touchscreen unresponsive — MCU failure — Tesla Model 3 2018 | MyCarFault
🟡 PARTIALLY SOLVED 0% Partially solved · Some fixes work, not all

🟡 Tesla Model 3 touchscreen unresponsive — MCU failure

Tesla Model 3 2018
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⚡ Quick Summary
Severity Level
Low
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟢 Low Priority

The central touchscreen becomes unresponsive, freezes, or fails to boot. On pre-2021 Model 3 vehicles the Media Control Unit (MCU1) uses an eMMC storage chip that wears out from continuous data logging. Tesla extended the warranty on MCU1 after regulatory pressure and offers MCU1-to-MCU2 upgrades. A soft reboot (hold both scroll wheels) resolves temporary freezes. Permanent failure requires MCU replacement by a Tesla service centre.

Repair / Solution

No confirmed fixes yet. Share yours below.

⚠️ Wrong Diagnosis?

No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Tesla Model 3 2018 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.

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