Turn Signal problems of the 2014 Tesla Model S

Large screen stopped responding, turn signals stopped working. Had to pull over and reboot. Next day screen showed a lot of artifacts and I had to reboot again to remedy.

Drove out of town and parked the vehicle in driveway for about 5 hours, when I retuned to drive it back (10 pm) center touch screen was blank. I noticed that there was loss of function of nearly everything in the vehicle. I could still drive it but with ability to use turn signal lights, or headlights (very dangerous drive at night). Steering wheel buttons, ac, audio, phone bluetooth, and all controls of the vehicle were completely lost. It was 90 degrees outside that night and had to drive without ac, I could not make or receive phone calls due to black screen, sun roof could not be opened. Basically the vehicle became a bare basic vehicle without any of the safety features or even the basic feature such as signal lights. I am not sure if there was an emergency if airbags would have responded either! the car felt just too scary to drive!! odometer would not count the miles too, odometer is lost and app shows the mileage from yesterday (even though I drove 50 miles on it to get home), I even notice battery started draining faster while I was driving it back home. . Performed soft and hard reset per Tesla website recommendations without ability to restore any of the functions or make the center screen display anything. I attempted connecting through the Tesla app, and although I was able to connect to the vehicle, the car would not respond to app for any of the controls, climate etc. Contacted Tesla next morning and they stated that since vehicle is out of warranty that I will have to bring it to service center or tow it if unsafe to drive and pay for repair to restore its functions. The small dash screen still was working, but continues to display a message to "wait while vehicle systems power up". It is completely an unsafe car at this time on every level.

The media control unit (mcu) failed - this control unit should not be a consumable or wear part - when it fails the turn signals do not operate, the windshield defogger cannot be operated, and many other critical safety systems impacted - the mcu has been acting up and not normal for past 9 -12 months then finally failed completely 07/27/20.

Failure of touchscreen. Dashboard display at -5 brightness, could not see the information. No turn signals and no reverse camera. Loss of control to air/heating, sunroof, music, garage door control. Tesla remote diagnostics team determined the mcu had an internal fault and would need to be replaced.

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.

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.

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 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.

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.

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.