✅ Fixed
MCU1 eMMC flash memory failure — known issue covered by NHTSA investigation. Tesla offered free MCU2 upgrade under goodwill program. Screen never fails now — upgraded system.
Tesla Model S 2017 MCU eMMC failure screen black
Tesla
Model S
2017
⚡ Quick Summary
Severity Level
Medium
Safe to Drive?
⚠️ Drive with Caution
Safety Impact
Indirect risk — worth monitoring, not urgent
Urgency Level
🟡 Monitor Closely
Main control unit screen going black randomly. 17 inch screen failure. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
📍 Tesla Model S
⚙️ Possible Causes
Tesla Model S
Possible: MCU1 eMMC flash memory failure — known issue covered by NHTSA investigation. Tesla offered free MCU2 upgrade under goodwill program. Screen never fails now — upgraded system.
Repair / Solution
Based on 134 driver confirmations
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Tesla Model S 2017 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🧾 Driver Reports
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