One problem related to alternator/generator/regulator has been reported for the 2013 Tesla Model S. The most recently reported issues are listed below.
During all electrical fault failures the vehicle was stationary. I've had 6 service visits related to electrical faults causing mechanical failures. The steering rack failure was the most recent problem. Tesla replaced the entire steering rack. The Tesla owner's forum and Teslamotorsclub. Com owners say they've replaced only the steering motor and that 1 part fixes the power steering fault. The electrical charging port failed because of electrical faults. The 12-volt battery has failed twice during the last year. 5 door regulators have been replaced in the front 2 seats due to electrical faults. 3 window regulators have been replaced due to electrical faults. The power steering failed due to an electrical fault. I've paid $6,500 for electrical faults during the last year. The tires I buy are rated to 55,000 miles, but they keep wearing out unevenly, and often blowing out, at less than 30,000 miles. The service center cannot tell me why the tires are continually blowing out and wearing out unevenly after minimal use. I went to a Tesla service center for help resetting my touchscreen and installing a firmware update when I was thousands of miles from home. The service center forced me to get nearly $2,000 of new regulators. Parts were incorrectly replaced that were not malfunctioning. Parts that malfunctioned once or twice were replaced. Parts that were replaced the previous month, and were covered under the Tesla parts warranty, were replaced again. The battery pack that powers the vehicle instantly lost 50-miles of range, 16% of total available range after visiting a service center. During 5. 6-years of ownership, I lost less than 7% of total available range. I paid a $10,000 upgrade for range. I'm concerned it's a fault or that my vehicle was damaged or the battery was replaced with a defective battery without my knowledge.