2015 Tesla Model S Electrical System Problems

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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)

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.

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.

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.

Driver side display is distorted due to glue leak at cconsole. This is a known issue for Tesla and they are directing customers to replace their entertainment console fully at $1,500. This issue causes distortion in sunlight conditions and the following cannot be viewed clearly: Miles avail, driver gauge (park, Reverse, Neutral, drive), mph, car status, car position and warnings.

Tesla Refused honey my warranty! My car stopped charging fully. Would only charge to 23%. Took it to Tesla, they said a row of battery not functioning correctly and since the battery is under warranty until 12/2/2023 I would not be charged. But, Left car with Tesla Service on 6/7/22 for warranty battery replacement as confirmed by Tesla same day with no charge to customer per warranty item. On 6/23/22, car is but Myra Vasquez and Tesla informed that I would have to pay 1432.10 to fix and retrieve my car after which I reminded them the original reason for the service is under warranty and I should not pay anything per Tesla Service on 6/7/22. Warranty expires 12/2/2023 so I am well within my rights. Under duress and to be able to retrieve my car I had to agree to the service or would have not way to go to work or take my children to school.

Rear drive unit failure Failed while driving, letters turned red and car became unresponsive. Car later became responsive between 3-10 seconds. Has occurred 5 times in a week. Dealer claims moisture to drive unit is what caused it and repair was covered under warranty except the harness attached to it, dealer charged me $599 for the harness. If seals are failing and allowing moisture to happen, which then leads vehicles to be unresponsive while driving is a huge risk. Please look into this, there are others online with the same issue

The contact owns a 2015 Tesla Model S. The contact stated that the liquid crystal display was leaking from the instrument panel causing a glare while driving. The dealer was contacted and informed the contact that the instrument panel needed to be replaced at his expense. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 92,000.

The contact owns a 2015 Tesla Model S. The contact stated that while attempting to start the vehicle, the vehicle took 5 – 10 minutes to be started. The contact stated that the doors and apps were inoperable. The contact stated that there were several error messages displayed. The contact was concerned about the vehicle stalling. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 73,000. The VIN was not available.