Electrical system

Tesla Model S 85D Electrical problems by year

393 complaints filed with NHTSA about the Tesla Model S 85D's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Electrical complaints by model year

2562015 2016

Year	Electrical complaints	Crashes	Injuries	Recalls
2016	137	7	7	0
2015	256	9	2	0

Latest Model S 85D electrical complaints

2015 Tesla Model S 85D Electrical system

Many air bubbles are appearing towards the bottom of the instrument panel on our 2015 Tesla Model S. This started a couple of weeks ago and the bubbles are increasing in size and number and they are moving upwards. The bubbles don't presently obscure important driver information such as the transmission mode (drive, park, reverse, neutral), remaining battery range (e.g. 80%), car speed (mph), parking sensor distance, brake light status, car door open, frunk open, tailgate open, time, outdoor temperature, car...

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lights on/off, warning lights, etc. However, the bubbles likely will do so in the future. Much of this information is vital for safe driving (e.g. transmission mode, speed (mph), remaining battery range, brake light status, and warning lights). As such this display should be replaced by Tesla at nominal or no charge to the owner. According to the internet, the cause of these air bubbles is a failed seal around the instrument cluster that allows a lamination fluid between the LCD display and the cover glass to leak out. It is a very common problem with older Model S's. It is a critical safety problem.

2016 Tesla Model S 85D Electrical system

While the car is parked and locked the rear driver side door opens in its own. The door handle does not present itself and is scheduled for repair. This is new and started happening today. Despite how many times I close it. It opens on it own. The door is locked when this happens. Door sitting still. Plugged in to charge and locked. The door opens on its own. It unlatches, Does not fully open.

2016 Tesla Model S 85D Electrical system

My driver's side of the vehicle looks like it's melting. I was informed by the service advisor at Tesla that this is a common issue, and the computer needs to be replaced at my expense.

2016 Tesla Model S 85D Steering Brakes Electrical system

The contact owns a 2016 Tesla Model S. The contact stated while attempting to park the vehicle, the brake pedal was depressed and failed to respond. There were no warning lights illuminated. The contact depressed the brake and the vehicle kept rolling forward. The contact opened the door for the vehicle to come to a stop. On another occasion, the contact stated that the ADAS feature engaged and while driving at various speeds, and the vehicle failed to recognize stop signs, traffic lights, or pedestrians. The...

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contact stated that the function was a paid feature; however, the system failed to operate as designed. On another occasion, the contact stated that the steering will shift to one side while driving at various speeds, and the vehicle became difficult to steer. The vehicle was not taken to the dealer to be diagnosed or repaired. The dealer was made aware, and the contact had a pending appointment scheduled. The manufacturer was not made aware of the failure. The failure mileage was approximately 79,000.

2016 Tesla Model S 85D Electrical systemFire

Component Failure: The Tesla NEMA 14-50 charging adapter for my 2016 Model S malfunctioned, causing overheating that melted a prong and led to an electrical fire. The defective adapter appears identical to those in Tesla's November 2016 recall, though mine was designated "not affected." The damaged adapter and charging cable are available for inspection. Safety Risk: This malfunction created a serious fire hazard endangering myself and my property. The electrical fire damaged both my vehicle and charging equipment,...

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and the fire could have spread to my home, potentially endangering my family and neighbors. Verification: I took the damaged adapter to the Tesla Service Center in Colorado Springs, where technicians acknowledged the damage but refused to replace it under the recall. They visually confirmed the melted prong and fire damage. Manufacturer Response: After the incident, I contacted Tesla Corporate requesting replacement of the defective equipment. They responded that they don't believe the electrical fire was caused by the defective plug, despite physical evidence showing the same issue as recalled units. Warning Signs: Prior to failure, I noticed intermittent charging interruptions and the adapter becoming unusually hot. These symptoms began approximately three weeks before the fire incident. There were no dashboard warnings about potential charging equipment issues.

2015 Tesla Model S 85D Transmission & drivetrain Electrical systemCrash

Car isn't cooling while supercharging. Problem originated while at Tesla Collision in Fort Lauderdale. Mike DiPietro, the general mgr stated they don't have a supercharger at Tesla Collision Fort Lauderdale to test it and they're not willing to drive it to the supercharger to test it because it's a service issue. When I dropped the car off it cooled while supercharging and now that it's not cooling while supercharging it presents a fire and safety hazard because it will only cool the moment the car is...

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unplugged from the supercharger and then cools full blast for 45 minutes after the car is unplugged. I am well aware of the proper functioning of the cooling of 2015 Tesla Model S P90DL's because I have two of them and have since 2017. The fact that the cooling system kicks ONLY AFTER I UNPLUG from the supercharger clearly indicates the car sees a need to cool but because of a software issue. MIKE DIPIETRO, THE GENERAL MGR OF TESLA COLLISION FORT LAUDERDALE IS NOW THREATENING TO SUE ME BECAUSE I'M REPORTING A FIRE SAFETY/ACCELERATED BATTERY DEGRADATION ISSUE AND I SIMPLY WANT TO PICK THE CAR UP IN THE CONDITION WHICH i DELIVERED IT WHERE THE SUPERCHARGING WAS WORKING PROPERLY COOLING WHILE SUPERCHARGING. THREATENING LEGAL ACTION BECAUSE I'M REPORTING AN ISSUE THEY MAY NEED TO COORDINATE WITH TESLA SERVICE TO FIX AMOUNTS TO BULLYING. If I pick the car up it implies my consent the car is fixed and is NOT a fire safety hazard. They are unwilling to fix the supercharging fire the car is presenting because Tesla Service is a separate entity than Telsa Collision. This is NOT a valid excuse and reason not to fix this fire and safety issue. Please coordinate so that I may forward the chronological email chain which clearly shows the fire and safety issue can be clearly traced back to the [[redacted]] service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2016 Tesla Model S 85D Electrical system

The contact owns a 2016 Tesla Model S. The contact stated that while driving at undisclosed speeds, the instrument cluster became inoperable on several occasions. The contact stated that the failure had occurred several times. The vehicle was taken to the dealer; however, the contact was informed that the failure would reoccur unless the vehicle was updated with a new infotainment center and a faster processor. In addition, the contact stated that the vehicle had been taken to the dealer several times due to the...

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failure. The contact stated that recently the instrument cluster and the ECM were replaced. In addition, the vehicle recently received a software update. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 73,000.

2016 Tesla Model S 85D Electrical system

The contact owns a 2016 Tesla Model S. The contact received notification of NHTSA Campaign Number: 23V838000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

2016 Tesla Model S 85D Electrical system Fuel system

Received and OTA notice on the dashboard that states "Battery Fuse replacement" is required. The fuse is due to a Li-ion battery that wears out for a safety system. Life expectancy of the battery is 10 years. It has not lasted 8 full years. This is stated as a safety issue and Tesla has since redesigned this item to not required the batteries. I have alerted Tesla about this issue, have not had a reply, as yet. The vehicle can be operated without this safety device, which seems inappropriate. I feel this should be replaced under warranty and/or recall - but it appears Tesla will want to charge an excessive amount of money.

2015 Tesla Model S 85D Transmission & drivetrain Electrical system Fuel system

The component that Tesla has stated is the part that is failing is the MCU (Media Control Unit) which was a recalled part at one point but then Tesla decided to replace only a single part of the MCU which was the eMMC (embedded MultiMedia Card). Luckily the vehicle was not driving when it completely shut down and would not start back up but I was stuck in a restaurants drive-thru for roughly 4 hours till I could get a tow truck to come tow it. The tow truck had to put the car on dollies as the vehicle would not...

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enter tow mode nor would it enter its emergency neutral mode so the vehicle could be moved. The windows would not go up or down and luckily the trunk was able to open because if not then I would have been stuck outside my vehicle as the door handles did not come out after I got out of it and closed the door behind me. Please read the messages from the tech as you will see that they tried to act as if they did not know what was going on with my vehicle but then i asked something else and they stated exactly what the issue was but supposedly could not confirm it was that unless they charged me a diagnosis fee and "got hands on" which I'm sure that info of what was wrong with my vehicle was nothing they needed to get their hands on. There were no warning lamps or messages UNTIL the vehicle shut off on me in the drive-thru and then the warnings started to populate staying that the vehicle was off, vehicle could not detect brake being pressed, and that the vehicle was not detecting the key. The repair estimate is no longer available in my app for some reason, probably because I did not repair the vehicle as they were wanting me to upgrade to the new MCU that is in the current vehicles and it would have been roughly $2,400.00. Just today, the vehicle would not start, would not move my seat or anything to its memorized position when I got in the vehicle and the screen was frozen, just as it did when the original recall happened of the MCU/eMMC, photo/videoattached.

2015 Tesla Model S 85D Electrical system Driver assistance

EMMC failed prior to recall and was replaced by 3rd party vendor. Recall reimbursement was denied. Emailed Tesla multiple times without response

2015 Tesla Model S 85D Electrical system

The window will not go down either due to software, electrical or hardware issues. The window motors have gone out had have had to be replaced. Likely, another motor has failed. In the 2015 Model S in order to open the door the window must lower an inch or more to clear the door frame. When the window will not lower due to software, electrical or hardware issues, the door is difficult to open and may crack/break the window. The is a safety issue getting into and out of the vehicle. The most recent issue is dated below. There have been other issues previously.

2015 Tesla Model S 85D Electrical system Visibility & wipers Driver assistance

The MCU that controls the climate and Advanced Driver Assistance Systems stops working while driving. I sent a service request to TESLA and they replied that my older MCU1 is failing because of the new software updates. It isn't the eMMC card hardware failure, but the symptoms and safety concerns are the same. None of the controls work, as the main screen goes blank and resets while driving. TESLA told me the fix for this problem is to upgrade to MCU2, which they fail to provide for free as a safety recall. ...

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There was already a recall for the MCU memory chip failing and causing the same safety concern. The car disables the Advanced Driver Assistance Systems when this problem occurs. It happens about once or twice a month for the last year.

2015 Tesla Model S 85D Electrical system

This is an updated video related to an issue I previously reported. I'm becoming increasingly concerned by the idea that Tesla's recommended remediation is to replace the car's MCU. However, the MCU in my car was upgraded to a newer version in July 2021. There are serious safety concerns with the need to perform a "soft reset" while the vehicle is operational (as seen in the video). Please feel free to reach out with any additional questions. [[redacted]] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2015 Tesla Model S 85D Electrical system

The high voltage junction box in my Tesla Model S reported issues. Took my car to Tesla service center in Charlotte NC in November. Its now been 3 months and my car has yet to be repaired by Tesla. They claimed would be repaired within 2 weeks and have arbitrarily been bumping the repair date out nonstop every few weeks to now being 3 months delayed. My understanding is that Tesla used parts from a company no longer making this part and they have no solution. This is crazy I have been without my car this long by them.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data