2015 Tesla Model S Electrical Problems

In Nov 2019, while driving at night, the center touchscreen (MCU) of my 2015 Model S went blank and would not recover after restarts. I lost access to nearly all vehicle controls. The daytime running lights remained on, but the headlights did not illuminate despite being set to auto, and I had no way to turn them on manually because the headlight control is on the failed touchscreen. Climate control was inoperative and the windshield began fogging, reducing visibility. I could not open the charge port despite a low battery. I avoided the freeway and took local roads home. This is the failure covered by Recall 21V035 (8GB eMMC wear-out). Tesla service confirmed via diagnostic logs an internal fault within the MCU and replaced it with a remanufactured unit. I paid $2,045.47 out of pocket (invoice uploaded). The defect was not remedied. The remanufactured MCU contains the same 8GB eMMC; since the 2019 replacement the screen still goes blank 2-3 times per year, recovering only after 10-15 minutes of holding the reboot buttons. As of Aug 2026, NHTSA's VIN lookup shows Recall 21V035 as "Recall Incomplete": Tesla has never performed the free remedy (64GB eMMC daughterboard). Component available for inspection. In Feb-Mar 2021, Tesla notified me my vehicle was covered and invited a reimbursement claim per its NHTSA-filed plan (49 CFR 573.13). I submitted the claim through my Tesla account within the claim period. Tesla's portal confirms this: it displays "You have already submitted for the reimbursement" and blocks resubmission (screenshot uploaded). The plan commits to a decision within 60 days. Five years later: no decision, no payment. In Feb 2026, Tesla Support confirmed it has no mechanism to check or process reimbursement claims. I am reporting Tesla's non-compliance with its filed reimbursement plan and its failure to remedy this recall.

NHTSA ID

11756104

Incident

Nov 25, 2019

Following a coolant rapid mate replacement performed by an authorized Tesla service center, the vehicle experienced a complete shutdown on a public road the same evening it was returned. The high-voltage cooling system was not properly purged of air following the service. This caused low coolant flow to the rear drive unit during a 63-mile drive in record heat. The fault cascade included a HIGH VOLTAGE ISOLATION FAULT (BMS_f123), drive inverter warning (DI_w126), and multiple battery management warnings. The instrument cluster displayed a red emergency warning: "Vehicle shutting down — PULL OVER SAFELY." The vehicle required towing. The failure was confirmed by the service center's own follow-up invoice, which documented "trapped air pockets in the coolant system following the most recent service" as the cause. The corrective repair was performed at $0 as a Goodwill service — the service center's internal acknowledgment of liability. The service advisor made a written text admission of causation the following day, then retracted it in a recorded phone call. Both are preserved. No post-repair Isolation Resistance test results were provided. The HV isolation fault may indicate latent thermal damage to HV insulation that could cause a safety failure at higher mileage outside any remaining warranty. The vehicle is available for inspection upon request.

NHTSA ID

11741500

Incident

Apr 14, 2026

This issue involves critical safety systems, including the rearview camera, front camera, and Autopilot/driver assistance features. The vehicle was taken to Tesla for a recall related to the MCU system. Tesla marked the recall as completed, but no effective repair was performed. The rearview camera remains unavailable, the front camera system is not functioning properly, and driver assistance features continue to be disabled. Tesla returned the vehicle without resolving the safety issue. This condition poses a serious safety risk, as essential visibility and safety systems are not operational despite a completed recall.

NHTSA ID

11730301

Incident

Apr 9, 2026

My 2015 Tesla Model S has a serious safety issue where the vehicle suddenly reverts to Park while driving and will not stay in Drive. I had the car serviced at Tesla’s Austin Ridgepoint location, and they documented that the issue was “resolved” and “validated,” but the problem continues exactly the same. Tesla replaced the rear motor speed sensor, performed tests, and charged me $522 for the repair. However, the vehicle still cannot stay in Drive and remains unsafe to operate. After I reported that the repair did not fix the issue, Tesla deleted the entire service appointment and technician notes from my account, removing documentation of the failed repair. This is a critical safety defect involving unexpected shifting behavior and high-voltage component concerns. Tesla has not resolved the issue and has removed evidence of the repair attempt from my service history. I am requesting NHTSA assistance so Tesla properly addresses this safety hazard.

NHTSA ID

11704233

Incident

Dec 4, 2025

I had been driving in the rain and the battery got wet. This was found to be due to corroded umbrella valves which allowed water to get in. The car had not been submerged or in deep water, simple driving on the interstate. The car gave me a warning "Service is required-car may not restart." I started out for the service center and the car failed after 65 miles. I thankfully was in a safe place when it happened. I had to be towed from Portland, Maine to Londonderry, NH for service. The umbrella valves were replaced at my cost $1,871.12). The umbrella valve problem is occurring on many models and Tesla is repairing them on the newer models, free of charge. They are not calling it a recall (it's a Service Notice) but I think I should be reimbursed for the repair since they should repair this potentially dangerous problem on all models, not just newer models.

NHTSA ID

11694721

Incident

Sep 26, 2025

An investigation has been conducted into a persistent and widespread defect affecting the 2015 Tesla Model S and other early models equipped with the first-generation Media Control Unit (MCU1). This defect manifests as the physical degradation and spontaneous leakage of a sticky adhesive substance from the edges of the vehicle's central infotainment screen and instrument cluster. The leaking substance is not merely a cosmetic issue but presents a credible safety risk to vehicle occupants and the vehicle itself. The substance is a source of Volatile Organic Compounds (VOCs), a class of chemicals with a low boiling point that are known to off-gas into the ambient air, a problem exacerbated by high temperatures. Exposure to these compounds can lead to both acute and long-term health consequences, including respiratory irritation, headaches, and in some cases, serious chronic illnesses. Furthermore, the presence of flammable solvents and components within the adhesive, combined with the heat generated by the electronic components of the MCU1, creates a potential fire risk. This report is submitted to the NHTSA to provide a detailed, technical analysis of the adhesive degradation and leakage in the 2015 Tesla Model S. The purpose is to formally document this specific defect as a safety issue that warrants regulatory action, separate from but related to the manufacturer's previous recall for the MCU1's eMMC memory wear. It is essential to demonstrate that the adhesive failure is not a cosmetic inconvenience but a distinct material failure with serious implications for occupant health and vehicle safety. This report aims to provide the necessary evidence and analysis to support a formal investigation and a comprehensive recall that fully addresses this physical defect.

NHTSA ID

11683749

Incident

Aug 28, 2025

What happened? While driving my 2015 Tesla Model S, the main touchscreen (MCU) began intermittently going black, disabling access to essential vehicle controls, navigation, climate settings, and rear-view camera display. At times when the MCU was functioning, the rear-view camera feed would still display a black screen upon shifting into Reverse, leaving me without any rear visibility. Component or system that failed: Media Control Unit (MCU1) / eMMC memory failure Rear-view camera and/or associated wiring harness Safety risk: The intermittent blackouts of the MCU and loss of rear camera feed created significant safety hazards, especially when reversing or attempting to adjust driving settings while in motion. The loss of rear visibility increased the risk of collision with pedestrians, cyclists, or obstacles. The MCU failure also limited access to defrost/defog controls and turn signal audio feedback. Problem reproduction and confirmation: Tesla Service has confirmed both the MCU1 hardware failure and the rear-view camera malfunction. The problems occurred repeatedly before being inspected. Inspection: The vehicle has been inspected by Tesla Service Center technicians, who diagnosed both the failing MCU1 and the defective rear-view camera. Warning messages or symptoms prior to failure: For MCU: slow system performance, frozen screen, then intermittent complete blackouts while driving. For rear-view camera: black or distorted camera feed when in Reverse, even when the MCU display was otherwise operational. These issues began occurring in June 2025 and became progressively worse until Tesla inspection on July 6, 2025.

NHTSA ID

11680801

Incident

Jun 25, 2025

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 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.

NHTSA ID

11677992

Incident

Jul 17, 2025

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 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 [XXX] service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11617666

Incident

Mar 16, 2023

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 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.

NHTSA ID

11583917

Incident

Mar 30, 2024

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

NHTSA ID

11583598

Incident

Mar 12, 2021

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.

NHTSA ID

11583058

Incident

Mar 18, 2024

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. 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.

NHTSA ID

11581437

Incident

Mar 30, 2024

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. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11575626

Incident

Dec 10, 2023

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.

NHTSA ID

11571798

Incident

Nov 19, 2023

While driving on the freeway, I thought I heard a rattling from the sunroof, and so I cracked the sunroof to 12% open, and then closed it again. The moment the sunroof closed, smoke with an electrical burn smell began billowing in through the air vents in the front of the car. We immediately opened the car windows to allow fresh air and exited the highway. Smoke continued to pour into the cabin while I pulled the car to the side of the road in a residential neighborhood. The car was parked within ~2 minutes of the smoke initiating. During this time, there were no warnings or hazards that I noticed on the dashboard. My family grabbed their immediate belongings and got out of the car, while I turned on the hazard lights, and also then exited the vehicle, popping the trunk of the car and the frunk to allow smoke to dissipate. The smoke didn’t seem to decrease after pulling to the side, nor opening and venting the car. After being at the side of the road for probably 1-2 minutes, a visible fire sprung up at the intersection of the hood/front windshield at which point I called 911. The fire quickly spread to consume the hood and cabin of the vehicle. Multiple explosions from the vehicle were seen and heard, sounding like gunshots at times, drawing many concerned neighbors from their homes. By the time the first responders arrived, the front of the car and cabin were largely consumed down to the metal framework, and the trunk had fallen shut and was also on-fire.

NHTSA ID

11555282

Incident

Nov 15, 2023

Driving my car and it completely gives out in the middle of traffic without any warning or alter almost causing an accident. When asked about the absence of alert they said I may or may not get one and I should be lucky it just cut off (randomly in traffic mind you) because if it didn’t it would’ve burst into flames. Being the Rear Drive Unit is the second most important part of the vehicle an alert should be given 100% of the time as no alert could cause injury to myself or other drivers. This means there are other Tesla drivers out there with a probable chance of their randomly car stopping without any control of the vehicle endangering lives. This oddly happens 60 days outside my 8 year warranty when I haven’t any issues at all and receive alerts for everything down to my fob key being low on battery. In addition the whole time they were just trying to convince to get a new one because they just happen to be running a limited time promo that I can transfer my free supercharging to a new vehicle if I purchased. A lot of people have reported (down to the day) of their car dying suddenly after warranty but no avail Tesla says they won’t goodwill repair my vehicle although I could’ve died or been seriously injured.

NHTSA ID

11554911

Incident

Nov 5, 2023

My MCU (onboard computer system) glitched out and the screen began flickering. I lost all of the Advanced Driver Assistance Systems, navigation, music, phone link, sunroof venting, climate control, including defrost. The screen froze and I had no functions. This has happened 4 times, possibly a 5th time, while driving in the last 6000 miles. I put in a service request to Tesla and they ran a remote diagnosis, and told me that the old MCU1 is overwhelmed by the new software updates. Their solution was for me to upgrade to the newer MCU2 at my cost. I am afraid to drive my car as it will malfunction while I need the safety features, like basic defrost or AC in the 105 degree heat in Phoenix. Tesla acknowledged that the previous MCU1 failure due to the eMMC chip was a recall, but this is a new problem that has not yet been acknowledged by Tesla as a recall problem.

NHTSA ID

11526350

Incident

Jun 4, 2023

As I arrived home after a 50 mile trip, I pressed the homelink indicator on the central console of my 2015 Tesla model S and found it was inactive (the garage door didn't go up). I then pressed other areas on the central console and found none of them responded to the touch of my finger. This included all functions (e.g., temperature, defroster, lights, rear camera, navigation, radio, turn car off, etc.). Unlike a previous incident that I reported (reference # 11459567) , the center display did not go black, it just became inoperable. This is definitely a safety hazard. It can not be fixed while driving. One must stop the car and exit to turn the car off, or one must stop the car and press 2 buttons on the steering wheel to reboot the center console. This might be difficult to do while driving on the highway. I will reboot the center console the next time I drive the car, and I am sure it will be fixed. However, this is a problem that should not have occurred. (Present software version 2022.8.10.12, updated recently)

NHTSA ID

11523121

Incident

May 21, 2023

The contact owns a 2015 Tesla Model S. The contact stated while adjusting the temperature in the vehicle, the infotainment screen froze. The contact stated that several minutes later the screen started operating normally. The vehicle was taken to the dealer and the dealer stated that the screen and the console needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 168,000.

NHTSA ID

11511202

Incident

Jan 11, 2020

Mileage

168,000 mi

Driver door of vehicle will unexpectedly and randomly unlatch and open whenever the vehicle is unlocked. While moving, as well as parked and when vehicle is unattended.

NHTSA ID

11507907

Incident

Feb 17, 2023

I brought the car in with working air, which included heating and a feature called Climate Keeper. I brought the car in with working Supercharging. I got the car back with broken Climate Keeper and soon after broken air, completely broken, and broken Supercharging. Also now the hood is bent.

NHTSA ID

11501759

Incident

Dec 26, 2022

The contact owns a 2015 Tesla Model S. The contact stated while driving approximately 15 MPH and slowing for a traffic light or signal, the vehicle infotainment system activated and then froze. The contact stated that the digital screen remained viewable however, the touch screen functionality was unresponsive to the touch. The contact stated that once the screen had frozen, he could not access the functions controlled by the touch screen. The contact stated that the failure required a full re-boot of the system. The contact stated that the re-boot time averaged eight to ten minutes. The contact had taken the vehicle to a local dealer, where it was diagnosed physically, and over the air, and determined that the infotainment center console needed to be replaced and the main computer processer needed to be upgraded. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 50,000.

NHTSA ID

11491961

Incident

Nov 8, 2021

Mileage

50,000 mi

Instrument cluster not powering on or crashes/glitches while operating the vehicle. This makes the vehicle unsafe to drive while auto pilot is engaged because the auto pilot system stops operating which could lead to a serious accident. The vehicle speedometer and all other instrument cluster warning systems are unavailable because the screen is off/not working. Tesla has performed a remote diagnostic and claims no issues are identified. They then proceed to upsell me the new infotainment system that will rectify this problem for $3,000 dollars.

NHTSA ID

11481478

Incident

Jul 10, 2022

The rear trunk will not open. An actuator locked the trunk yet the system shows it to be open. The manual opening mechanism inside the rear trunk area does not override the actuator and the trunk will not open. A warning sound does operate - alerting the driver - yet there is no access to or from the trunk using any of the electronic systems (in-vehicle buttons, mobile app or exterior buttons or handles). The manufacturer is scheduled to repair the defect within 10 days.

NHTSA ID

11480300

Incident

Aug 19, 2022