2014 Tesla Model S electrical system problems

“The main battery failed without warning/notice. it will not charge anymore. the tesla service center in louisville kentucky did not disclose the exact cause for the failure. one day the car displayed a message stating the car is unable to charge, contact service center and never charged again.”

“Agency: National Highway Traffic Safety Administration I am submitting a complaint regarding repeated denial of access to charging infrastructure for my electric vehicle due to fraudulent billing activity within Tesla’s Supercharger network. I own a 2014 Tesla Model S located in Alabama. My Tesla account has repeatedly recorded Supercharging sessions in California that were not performed by my vehicle. Tesla customer support representatives have acknowledged that this issue appears to involve VIN cloning or a flaw in their charging identification system. Because I blocked my credit card to prevent fraudulent charges, Tesla’s system repeatedly flags my account as having unpaid balances and automatically disables my vehicle’s access to the Supercharger network until those balances are resolved. This creates a situation where my vehicle can be denied access to charging infrastructure even though the charges are fraudulent and unrelated to my vehicle’s actual activity. The issue has occurred multiple times over several months and requires repeated calls to Tesla customer support to restore charging functionality. Loss of access to charging infrastructure can…”

“I am the current owner of a 2014 Tesla Model S equipped with MCU1. While driving, including at freeway speeds, the center touchscreen has rebooted unexpectedly, showing only the Tesla logo before recovering. During these reboots, critical vehicle functions are unavailable, including the rearview camera, HVAC/defrost controls, and other essential features. This failure matches the exact safety defect described in NHTSA Recall 21V-035 related to the MCU/eMMC failure. I reported this safety issue to Tesla Service and provided photo evidence of the screen rebooting while driving. Tesla has refused to address this as a recall or safety repair. Tesla claims the recall was previously completed under a prior owner but refuses to provide any documentation proving that the recall repair was actually performed, citing prior owner privacy. Tesla has further stated that diagnosis of this active safety defect would be customer-paid due to the basic warranty being expired and has indicated that the only path forward is a paid infotainment upgrade. Tesla is effectively requiring payment to diagnose and resolve a known safety defect. As the safety defect is actively occurring…”

“My [XXX] mother owns a 2014 Tesla Model S P85+ (VIN: [XXX] ) with only 50,367 miles. The vehicle suddenly became completely inoperable without warning. It would not turn on, would not charge, and the charge port would not open. The vehicle had to be towed. Tesla diagnosed failures of the high-voltage battery contactors, the onboard charger assembly, and HV circuit integrity. These are essential high-voltage components that should not fail at such low mileage. When these parts fail, the vehicle loses all ability to charge, loses all propulsion capability, and becomes a stranded hazard. This represents a safety concern because the vehicle can shut down without warning and cannot be moved, which could leave occupants stuck in unsafe conditions or traffic. The charge port failing to open is also a safety issue, as the vehicle cannot be charged in an emergency and the owner has no way to safely get the vehicle off the road once it loses power. Tesla quoted nearly $4,000 for repairs and refused goodwill assistance even though this is a known early Model S issue and these components have been redesigned in later models. My mother is on a fixed Social Security income…”

“After a high-voltage junction box repair performed by Tesla, the vehicle shut down 15 miles after leaving the service center. Tesla replaced the high-voltage harness at no cost but provided no explanation. After the HV harness replacement, new proximity/sensor alerts began triggering that were not present before their HV work. Multiple reasonable diagnostic procedures were refused, including bench-testing the sensors. Tesla is pressuring me to take possession of the vehicle without providing written confirmation that it is safe to operate following the HV system failure and subsequent replacement of HV components. I am concerned the vehicle may have unresolved high-voltage or wiring issues that could pose a safety hazard.”

“The contact owns a 2014 Tesla Model S. The contact received notification of NHTSA Campaign Number: 23V838000 (Electrical System); however, the OTA update had not been received. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that the OTA update was available. The manufacturer was notified of the failure, a case was opened, and it was confirmed that the OTA update was available. Later, the case was closed after the manufacturer confirmed the OTA update had been pushed to the vehicle. The contact had not experienced a failure. Parts distribution disconnect.”