NHTSA complaint #11433960

Owner complaint summary

Conditions were clear and dry, with an ambient temperature of approximately 86 degrees F. Time of day was approximately 11:41am, Pacific. I was entering the 73 South onramp from Newport Coast Dr. (Newport Beach, CA 92657), somewhere between 60-70mph in Sport Plus mode, under heavy acceleration (but not full throttle). With no other symptoms or indications, the vehicle suddenly lost motive power and presented the error message “Electrical System Error Park Vehicle in Safe Place.” At that point, the throttle became completely unresponsive and the AC compressor shut off, though other vehicle systems appeared to work normally. I was able to pull over to the shoulder safely, however sudden and complete loss of motive power is very clearly a safety risk when on a highway. In this case, as in the first time this happened, I shut the vehicle off and attempted to restart several times immediately following the initial error message, but the vehicle would not restart. I let the vehicle sit for approximately 10-15 minutes with the power off. At that point, the vehicle was able to be restarted and driven. This is the 3rd time I’ve received such an error and the 3rd time I’ve had the vehicle brought in for service for the same issue since August 2nd. Porsche Cars North America is apparently aware of the issue and has updated my vehicle software and replaced a voltage converter approximately one month ago. Unfortunately, the vehicle seems to still be exhibiting the problem.