My tesla s has yet another defective mcu console ruined by excessive data communication by tesla.. It is dangerous to drive because the car speed is extremely faint in the instrument window, and there is no sound when the turn signal is activated, no radio, no map, and no HVAC control. I have to pay tesla $1553.to replace it with a remanufactured unit - some other owner's ex-mcu? Tesla promotes this as a "smart car." without the mcu console, it s a dumb car.
2014 Tesla Model S electrical complaints
Page 4 of 6: complaints 71 to 100 of 134, newest first, as owners wrote them.
I was driving on the highway, and suddenly the main screen goes black, and the turn signals stop working and I had to use hand signals ( most of the ppl didn't understand them) and the AC system turned off ( I was driving with the kids in the car and until got home they were dehydrated, as it was over 100 degrees outside)
The video scrren (mcu) goes blank while driving and navigating and backing up. While backing into my garage tge screen went blank causing dangerous situation not seeing what was behind me. While navigating the screen went blank causing me to miss an exit on the freeway.
Tl* the contact owns a 2014 tesla model s. The contact stated the while operating the vehicle the center touch screen display was inoperable and would not illuminate. Due to the display failure the rear view camera, turn signal lights and high beam lights would not activate. Also while charging, the battery would over heat and the odor of burning plastic was present. The vehicle was taken to the local tesla service center located at 210 andover st. Peabody ma.who reprogrammed the system but the failures continued to occur. The contact was informed that the display system needed to be replaced but the parts were not available. The failure mileage was 160,000.
Tl* the contact owns a 2014 tesla model s. The contact stated that the media control unit was defective and inoperable. The contact also stated that while the vehicle was in park, water started to leak from the vehicle. The battery warning light illuminated stating that the 12 volt battery should be replaced soon. The contact called tesla (50 edwards ct, burlingame, ca 94010, (650) 342-1176) where the technician scheduled appointment to have the vehicle diagnosed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 54,000. *ln consumer stated touchscreen does not work, the car door doesn't lock and AC runs while parked. Noise of the car is loud and battery runs out fast while parked. Consumer cannot see the telsa app and therefore cannot adjust charging and unable to open AC and more.*jb*dt consumer stated media control unit/touchscreen was replaced.
When starting my vehicle, the vehicle's center console screen did not power on. The instrument cluster (behind steering wheel) did power on, but the vehicle was very slow (about 2 minutes) before it could be put into "drive" (the instrument cluster said that vehicle was powering up). I then attempted to restart the center console screen (mcu) manually (by pressing both buttons on steering wheel for 20 seconds), but nothing happened. I began driving, and noticed several functions were not working: when indicating turn signals, there was no sound, and using a large glass window to verify, the exterior turn signals were not lighting up. The rear view camera and parking sensors would not activate when car was in "reverse" gear. Headlights would turn on automatically when it was dark, but I had no daytime running lights (also verified with glass window). I could also not manually turn headlights / day time running lights on or off. The climate was off, and could not be controlled. Charging was limited, the vehicle would charge but a much slower rate than usual (the instrument cluster said it was charging at only 8 / 40 amps 240v). I continued to drive the vehicle for a week, for short distances, and the vehicle remained in the same state. Several months prior, I brought my vehicle to tesla for service, because of constant restarts of mcu every time vehicle was started, after a software update. I was told to update to next available version, which did resolve the issue. After further research, I discovered this is the first symptom of mcu failure, and I would experience frequent restarts of mcu while driving afterwards (which I did) until the unit would fail entirely (which it also did). I am surprised tesla did not warn me of any of these things when I brought the vehicle in for service, instead waiting until vehicle became unsafe to drive.
My tesla p85d year 2014 had the center console that controls all the navigation, heating, A/C, seat adjustments, music, charging, has gone bad and a lot of the blogs I read state this is due to a faulty flash memory with the multimedia control unit (mcu). The car is driveable but too many features that you depend on to drive are not operable due to the media console not being usable. The media console is just black and not able to be turned on.
The mcu (large touch screen control panel) has been rebooting randomly for years while driving renderimg some car functions non functional including turn signal. Today it turned off completely leaving the car drivable but handicapped and I am unsure if it safe to drive. I understand tesla knows about the emmc failure that can cause this issue yet they don't warn customers about this potential issue especially when under warranty and when it could cause dangerous driving conditions. The least tesla could do is tell customers about what dangers may be present and that some legal based functions of the vehicle like the turn signals will be inoperable. It's upsetting that tesla knows about these issues and is not informing customers.
The mcu unit - media control unit - is failing. Signal light indicator does not make a sound, the warning sounds for being too close to an object are gone. Other warning beeps, chimes, bells, etc. Are gone. Some indicators on the display screen are inoperable. The touch screen does not respond to touch for some features/controls. All of the car's controls are on the touch screen. My car is only 6 years old. It is solid state circuitry. How can it fail ? My warranty had just expired. Of course. This is an electronics problem of a key component of the vehicle. I don't know if it is due to poor design or defective components but it is a serious enough problem that I felt I should report it.
On may 19th, I attempted to start the car but found that the main central touchscreen would not turn on. Multiple attempts to start, including all available reboot options as instructed by tesla tech support via phone failed to restart the screen. Because service had to be performed at the dealership in atlanta, I was forced to drive the vehicle without the touchscreen. While basic functions were available, the loss of the touchscreen created a significant safety issue. I had to drive roughly 75 miles on the interstate during a heavy rainstorm. The loss of touchscreen meant I had no climate control--no A/C or defrost functions--so visibility was greatly impaired and I was reduced to periodically (and dangerously) wiping the windshield with a towel to maintain visibility. There were multiple other impacts, including loss of all audio and bluetooth, navigation, and I would worry that some of the electronic safety systems like collision avoidance might have been affected. If this had happened in winter during a snowstorm, the impact could have been even more dangerous. The problem turns out to be well known by tesla. It was a defective media control unit. This unit uses a flash memory chip, hard-soldered to the circuit board and thus not replaceable without replacing the entire board. The memory chip has a limited number of read-write cycles, and due to the tesla's programming, data are constantly written to the chip daily (and this is not a user-defeatable option). Replacement was done by the dealer, for a cost totaling 1868.07, not covered by any type of warranty.
See the federal safety agency action # 20010. Media control unit failed 7/8/2020 @ 5:04 pm when returning to the car after a brief stop, in a parking lot. Car took several minutes to "reboot" to drivability, but center screen is still down. Backup camera and blinkers (inside or outside, confirmed) are not working. Additional items down include defrosters, auto tilt mirrors for reversing, seat heaters are stuck on (from when I had last used them), sunroof won't open (it ignores steering wheel controls). Brake lights are still functional, so I drove it home. Called tesla and was told that the replacement module is out of stock and is not expected for many weeks. In the meantime, the car is undrivable.
My mcu just went black and never came back on. It has been like this for 5 days. I am unable to charge the car, and no climate controls, and also no rear view camera. I have a service appointment in 2 weeks, and they refuse to upgraded the mcu1 to an mcu2 which will have less change of having this failure in the future.
Main screen turns off. The 17" center screen freezes and then turns off not letting use rest camera, door unlock, and HVAC.
Media control unit that controls the car stopped functioning altogether. Car was not operational.
The control touchscreen in my 2014 tesla model s kept rebooting itself for no apparent reasons. Sometimes, it did that while I was driving and I didn't know what happened. The screen went dark (blank) for several minutes and I lost access control to the car. Those control features can only be accessed through the touchscreen. It happened quite a few times while my wife was driving and she was extremely scared to continue driving. Both she and I had to safely pull to the side of the road/highway and waited until the screen came back. We're afraid that one of these days, we will lose full control of the car which may in turn cause an accident.
Mcu failed and I was not able to drive my car. If I was to drive no turn signals were active and your unable to charge.tesla charged me 1500 dollars for a replacement.
Screens go blank at times and in the middle of driving. Screen in picture is delaminating. This happens multiple times, not just a single occurrence.
Vehicle's mcu goes black and reboots when in flight. Loss of ability to control key vehicle features.
Mcu the main display is slow to respond and internet access does not work as it should. Screen blinks/turns off randomly.
The media control unit (mcu) failed on my tesla in january 2020. The mcu controls safety features such as front and rear defrost, hazard lights, headlights, turn signals and charging for the main battery. The emmc chip failed when the vehicle was parked. The failure caused the vehicle to be inoperable.
Mcu unit has a design fly where it will be inoperable causing a safety issue.
Center display went black. Car was stationary. No AC, no back up camera,no blinkers etc.
While parked with the sunroof open, when I went to re-enter the vehicle, the main screen (mcu) remained blank and never came back to life. While driving home, I was unable to use turn signals, adjust basically any driving items including suspension, drive mode, steering controls, HVAC, lights, or close the sunroof. The car was technically able to be driven, but I also had no light control, no back up camera, and it could only charge at a basically unusable speed. Tesla's only fix was to replace the entire mcu unit.
While stationary, just after getting into the car which in this car is how it turns on, mcu is failing due to excessive logging issue. Main screen goes black randomly. Lose control of major functions of car, including AC.
The mcu stopped working, I'm lead to believe based on forums I've read on, this is due to the emmc failing due to tesla having a design flaw and also having excessive amount of unnecessary logging to the chip.
Mcu 17" black screen. Caused issue where car would not charge above .5kw additionally backup camera no longer worked. I had a 3rd party repair the failed emmc which resolved the problem. This however is a much larger issue. Https://teslamotorsclub.com/tmc/threads/consolidated-emmc-thread-mcu-repair-black-center-screen.181124/ https://teslamotorsclub.com/tmc/threads/feds-investigate-failing-mcus.197384/.
The main screen on my 2014 tesla s recently went out and some research online shows that many others experienced the same issues. Tesla sent a technician and said it is the mcu (media control unit) chip that went bad and a replacement will cost $1,500+ the tesla technician said the car is drivable but the blinkers do not work, along with the back up camera and parking sensors. He stated those things are integrated with the main mcu unit and when the mcu goes out, those things will not function. I am concerned about driving my vehicle without the function of the blinkers as it could present a hazard. There has been reports similar to mine where tesla added a finite memory chip to the mcu system that deteriorate and will fail after a length of time and because tesla update the software in the car very frequently, the wear on the memory chip deteriorate at an accelerated rate. The tesla technician said that the new chip should have 4x the capacity and should last much longer, but will cost $1,500 to replace since my vehicle is out of warranty. With the safety issues mentioned, I am weary about driving my car, especially on the highway - not being able to use the turn signals. If this is a manufacture defect, I do not wish to be responsible for payment to have it fixed. Thank you
Due to recent news this week of the federal safety agency investigating the tesla model s from 2012 to 2015 regarding the faulty screen, I wanted to report that I had a similar problem. The large screen called mcu or media controlled unit on my model s would have problems of blacking out while driving or when trying to start from a parked position. Ultimately, it shut down altogether. I had reported the problem to tesla when the screen blackout problems were happening in 2018 and 2019 by calling customer service. Tesla's customer service told me to reboot the system by holding down the two scroll buttons. After multiple reboots over a period of 6+ months, the screen blacked out permanently, and the reboot solution no longer worked. I had to get the problem fixed at a cost of $2,614.50.
When I went to start the car the central touchscreen failed. Could not control the lights, A/C, heating, could not recharge the car. Tesla charged me out of warranty over $2000 to replace the touchscreen with a refurbished one. They refused to give the old part to me even though this was replaced in nevada where the law states that they have to give the old parts back to the owner. I had to pay them another $1000 to get the part back as it contained so much private information.
I went to turn on my car in the morning and the mcu was showing a checker pattern of errors. As I drove the GPS did not update my location. When I got back in the car the mcu was completely dead black. The car has already had the mcu replaced once in 2017, 3 years after delivery from tesla. 3 years later it died again and I'm having to replace it out of warranty from tesla. The bill is expected to be $2000 and the car is supposed to be in the service center for over a week.
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