NHTSA Complaint #11604175 — 2013 TESLA MODEL S

Without warning, vehicle suddenly stopped accelerating while driving on freeway. Driver had to manouver to avoid a potentially fatal situation. Manufacturer's service center noted this malfunction was due to a failed Drive Unit (electric motor.) Only during incident was there any warning to driver - dashboard indicated "PRND" in red. No prior symptoms at any point were noted by driver in advance. This specific Drive Unit was a replacement unit that lasted only around 40,000 miles (stated by vendor records - installed at approx. 131,000 miles three years ago.) Drive Units on these vehicles can fail at similar mileage due to a known manufacturing defect. This vehicle and early model S vehicles are impacted. This defect is due to a flawed design of a rubber seal that causes coolant fluid to leak into the Drive Unit and results in sudden catastrophic failure. Manufacturer has been aware of failing Drive Units for years. Manufacturer does not notify drivers about this potentially deadly design flaw. Drivers are unaware about this issue so vehicles can be checked for proactive maintenance. Also, vehicle does not show any advance indication of sudden lack of acceleration. This major safety issue has been noted by other drivers in online forums: [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] / [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)