The center touchscreen suddenly went completely black and became unresponsive without warning. Repeated attempts to restart it using the steering-wheel scroll buttons have failed. The black screen prevents me from accessing important vehicle functions, including the rearview camera and other controls plus the sound system is affected so I do not hear any warnings. This creates a serious safety concern while driving. Additionally, the driver's instrument cluster remains black for approximately 20–30 seconds after pressing the brake pedal before the Tesla logo appears and the display becomes operational. This delays access to essential driving information. These problems have occurred during normal vehicle use. The vehicle drives normally once the instrument cluster starts, and its driving range and charging behavior appear unchanged. However, I am concerned that these electronic failures could put me, my passengers, and other road users at risk. The vehicle has been professionally inspected, and I was advised that it likely needs a replacement Media Control Unit (MCU) and 12-volt battery. These components have been identified as needing replacement to address the electronic problems. However, the repairs have not yet been completed. I respectfully ask the federal safety agency to investigate whether these failures represent a broader safety defect affecting other Tesla Model S vehicles, particularly involving the MCU, eMMC memory, touchscreen, and instrument cluster. If a safety defect is identified, I hope appropriate recall action will be considered.
2015 Tesla Model S driver assistance problems
71 complaints (11% of all complaints for this car). Typical mileage when it fails: 54,000. 15 crashes reported.
- owner complaints
- 71
- of this car's complaints
- 11%
- typical mileage
- 54,000
- crashes
- 15
- recalls
- 0
Which part fails
- Adaptive cruise control20
- Automatic emergency braking18
- Warnings8
- Assist8
- Blind spot detection5
- Warning2
- Rearview system braking2
- Display function2
At what mileage
Complaints by mileage at the time of the problem.
Tesla Model S driver assistance problems in other years
Specific symptoms reported on the 2015 Tesla Model S driver assistance
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Loss of rearview camera
On November 20, 2020, the Office of Defects Investigation (ODI) opened Engineering Analysis (EA) 20-003 to investigate incidents of media control unit (MCU) failures resulting in loss of rearview camera in model year (MY) 2012-18 Tesla Model S and model year (MY) 2016-2018 Tesla Model X vehicles equipped with the NVIDIA Tegra 3 processor with an integrated 8GB eMMC NAND flash memory device. During its investigation, ODI learned that the expected usage life rating for the 8GB eMMC NAND flash memory device is approximately 3,000 “P/E” or Program-Erase cycles, after which the eMMC NAND flash memory device would become fully consumed and no longer be operational, leading to a failure of the media control unit (MCU). At a daily cycle usage rate of 1.4 per block, accumulation of 3,000 P/E cycles would take only 5-6 years. Historically, the expected life of a vehicle generally far exceeds 5-6 years of service. ODI believes that a 5- or 6-year life expectancy for a component integral to providing the driver with safety functions is insufficient. During our review of the data, Tesla provided confirmation that all units will inevitably fail given the memory device’s finite storage capacity. Tesla provided its own statistical model showing the number of projected weekly MCU repairs from 2020 to 2028, estimating that replacement rates for MCU failures will peak in early 2022 and gradually decline until (near) full part turnover has been accomplished in 2028. According to Tesla, for subject vehicles equipped with the NVIDIA Tegra 3 processor with an integrated 8GB eMMC NAND flash memory device, the eMMC NAND cell hardware will fail when reaching lifetime wear, for which the eMMC controller has no available memory blocks necessary to recover. With this failure mode, the only recovery available is a replacement of the eMMC device, achieved by physical part replacement of either the MCU assembly or visual control module subcomponent. Tesla provided information concerning the effects of MCU failure on vehicle function, which include in loss of rearview/backup camera and loss of HVAC (defogging and defrosting) setting controls (if the HVAC status was OFF status prior to failure). The failure also affects the Autopilot advanced driver assistance system (ADAS) and turn signal functionality due to the possible loss of audible chimes, driver sensing, and alerts associated with these vehicle functions. Based on this analysis, ODI issued a Recall Request Letter (RRL) on January 13, 2021. The RRL was based on ODI’s tentative conclusion that a defect related to motor vehicle safety exists in the subject vehicles because the eMMC NAND flash devices have a finite lifespan based upon the number of program/erase (P/E) cycles, after which the MCU fails due to memory wear-out, which constitutes a premature failure of safety-critical part. Tesla responded to the Recall Request Letter (RRL) on January 27, 2021, and disputed the tentative findings of the RRL. Nevertheless, on January 29, 2021, Tesla filed a safety recall (21V‑035), recalling (MY) 2012-2018 Tesla Model S and (MY) 2016-2018 Model X vehicles with a center display equipped with a NVIDIA Tegra 3 processor and an 8GB eMMC NAND flash memory device. In this recall, Tesla is providing a free hardware remedy in addition to the over-the-air (“OTA”) firmware updates that the company had previously implemented. the federal safety agency will continue to monitor the issue as part of its ordinary processes for overseeing the effectiveness of recalls. However, based on available information, at this time, Tesla’s recall appears to address the unreasonable risk to motor safety presented by the premature failure of the component. Accordingly, the investigation is closed. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
EA20003
Loss of rearview camera
On June 22, 2020, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE20-010 to investigate incidents of media control unit (MCU) failures resulting in loss of rearview camera in model year (MY) 2012-2015 Tesla Model S vehicles equipped with the NVIDIA Tegra 3 processor with an integrated 8GB eMMC NAND flash memory device. EMMC NAND flash devices have a finite lifespan based upon the number of program/erase (P/E) cycles. The subject MCU allegedly fails prematurely due to memory wear-out of the eMMC NAND flash. Tesla used the same MCU with the Tegra 3 processor in approximately 159 thousand 2012-2018 Model S and 2016-2018 Model X vehicles built by Tesla through early-2018. In response to ODI's Information Request (IR) for PE20-010, Tesla provided ODI with 2,399 complaints and field reports, 7,777 warranty claims, and 4,746 non-warranty claims related to MCU replacements. The data show failure rates over 30 percent in certain build months and accelerating failure trends after 3 to 4 years-in-service.According to Tesla, for subject vehicles equipped with the NVIDIA Tegra 3 processor with an integrated 8GB eMMC NAND flash memory device, the eMMC NAND cell hardware can fail when reaching lifetime wear, for which the eMMC controller has no available blocks to recover. With this failure mode, the only recovery available is a replacement of the eMMC device, achieved by physical part replacement of either the MCU assembly or visual control module subcomponent. Tesla provided the effects of MCU failure on vehicle function which result in loss of rearview/backup camera, loss of HVAC (defogging) setting controls (if the HVAC status was OFF status prior to failure.) There is also an impact on the advanced driver assistance support (ADAS) Autopilot system, and turn signal functionality due to the possible loss of audible chimes, driver sensing, and alerts associated with these vehicle functions. There are precedents for addressing defects that result in loss of either backup camera, defogging, or turn signal functions under safety recalls.Tesla has implemented certain Over-The-Air or OTA updates to subject vehicles to mitigate the effects of MCU failure. These updates include firmware changes to reduce memory usage of the subject memory card, improve eMMC error correction and storage management strategies, changing the control logic for turn signal activation, and defaulting the HVAC system to Auto (71.6F) for drives after MCU failure to address windshield defogging. Tesla indicated that the MCU failures are likely to continue to occur in subject vehicles as vehicles continue to operate and use available memory in the 8GB eMMC NAND flash memory until 100% of units have failed. This investigation has been upgraded to an Engineering Analysis (EA20-003). The VOQs associated with the upgrade of this investigation are identified in the attachment to this resume.
PE20010
Automatic vehicle control systems
On May 7, 2016, a 2015 Tesla Model S collided with a tractor trailer crossing an uncontrolled intersection on a highway west of Williston, Florida, resulting in fatal injuries to the Tesla driver.Data obtained from the Model S indicated that:1) the Tesla was being operated in Autopilot mode at the time of the collision; 2) the Automatic Emergency Braking (AEB) system did not provide any warning or automated braking for the collision event; and 3) the driver took no braking, steering or other actions to avoid the collision.On June 28, 2016, the federal safety agency opened PE16-007 to ?examine the design and performance of any automated driving systems in use at the time of the crash.?The Office of Defects Investigation (ODI) analyzed the following subjects as part of the federal safety agency?s examination of the design and performance of Tesla?s Autopilot system:1) Automatic Emergency Braking (AEB) system design and performance in the subject Tesla and peer vehicles; 2) human-machine interface issues related to Autopilot operating mode; 3) data from crash incidents related to Tesla?s Autopilot and AEB systems; and 4) changes Tesla has implemented in the Autopilot and AEB systems.the federal safety agency?s examination did not identify any defects in the design or performance of the AEB or Autopilotsystems of the subject vehicles nor any incidents in which the systems did not perform as designed.AEB systems used in the automotive industry through MY 2016 are rear-end collision avoidance technologies that are not designed to reliably perform in all crash modes, including crossing path collisions.The Autopilot system is an Advanced Driver Assistance System (ADAS) that requires the continual and full attention of the driver to monitor the traffic environment and be prepared to take action to avoid crashes.Tesla's design included a hands-on the steering wheel system for monitoring driver engagement.That system has been updated to further reinforce the need for driver engagement through a strike out strategy.Drivers that do not respond to visual cues in the driver monitoring system alerts may strike out and lose Autopilot function for the remainder of the drive cycle.A safety-related defect trend has not been identified at this time and further examination of this issue does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by the federal safety agency that no safety-related defect exists.The agency will monitor the issue and reserves the right to take future action if warranted by the circumstances.For more information about the analysis, see the attached report.
PE16007
What 2015 Tesla Model S owners say
Most recent owner complaints, unedited.
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.
Tesla Model S has a notorious back hatch latching failure. It’s a flawed design that every replacement is a “when” and not “if for failure. As an owner its failed be about 4-5 times in 5+ years of ownership. The hatch back latching issue causes cruise control as well as their Autopilot steering navigation feature to be disabled when latch starts acting up or failing to fully close, which are helpful safety components to keep your car on the road going at proper speeds and staying in lane. Reporting this in hopes someone pushes Tesla to do something about this flaw that should be a manufacturers defect.
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.
The car veered suddenly to the left (out of the left lane of a highway) while supervised in auto steer. The driver could not move the steering wheel to avoid a collision with the guardrail as the steering wheel had locked up. The collision warning didn’t sound and emergency brakes did not activate upon impact. The airbags were deployed and the car was totaled.
The vehicle was involved in an accident due to a failure of the autopilot system. There was a recall letter sent out of 23V‑838 a month prior, but changes either did not persist or was the primary cause of the accident.
EMMC failed prior to recall and was replaced by 3rd party vendor. Recall reimbursement was denied. Emailed Tesla multiple times without response
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.
Unknown
1)MCU1 flash memory failure in production from 2012 to 2018, part is available, but would require downing the car to remove/replace. 2)The symptoms of this failure include the loss of indicated gear state and reduced driver visibility from the loss of rearview camera, defrost/defog and exterior signal lighting which increases the risk of an accident. Driver display is black or booting up slowly during this time and the car can be put into gear and driven prior to the display showing DNR gear state making it a safety risk to anyone walking near the vehicle if it was accidently put into gear. 3)Issue was confirmed by Tesla and was told an update to MCU2 hardware at $2250 was needed at the customer (my) expense. The vehicle was under a full Tesla warranty, so I refused and asked them to fix this issue. Tesla Service cleared/freed up some memory but said the issue would return unless I paid to update to MCU2 hardware. The issue has returned as they stated. 4)Yes, by Tesla Service and Tesla Engineering. Both confirmed that this was a known issue with the MCU1 hardware in production from 2012 to 2018 and recommended that I (the customer) update the vehicle to MCU2 hardware for $2250. 5)There are no warning lamps or messages to inform the operator of an issue. Only the black driver display, but that doesn’t prevent the operator from putting the vehicle in gear. The symptoms start with slow driver display boot times and progressively get worse over time losing the rearview camera, defrost/defog and exterior lighting controls. The display lag becomes enough to be able to accidently put the car in drive or reverse without displaying indicated gear state on the dash making it a safety risk to anyone walking near the car.
Questions about the 2015 Tesla Model S driver assistance
Does the 2015 Tesla Model S have driver assistance problems?
Owners have filed 71 complaints about the driver assistance of the 2015 Tesla Model S, 11% of all its complaints.
At what mileage do 2015 Tesla Model S driver assistance problems start?
The typical (median) mileage in owner complaints is 54,000 miles.
Was there a recall on the 2015 Tesla Model S driver assistance?
There is no recall for this problem on this model year.
What year does the Tesla Model S have the most driver assistance problems?
The Tesla Model S model years with the most driver assistance complaints are 2017 (101 complaints), 2016 (78 complaints) and 2015 (71 complaints).
Other 2015 Tesla Model S problems
Electrical 269Suspension 150Steering 51Lights 46Acceleration 40Visibility 39Fuel system 32Body 30Transmission 29Airbags 22Brakes 21Engine 17Wheels 13Locks 8Seat belts 3Seats 2
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