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.
2014 Tesla Model S lights complaints
Page 2 of 2: complaints 11 to 27 of 27, newest first, as owners wrote them.
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
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.
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)
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.
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.
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.
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
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.
Tesla model s onboard memory has failed leading to no use of main interior screen. Out indicator lights and high beams do not work making it very unsafe to operate. This happens to many tesla's with the mcu v1. The chip they use becomes corrupted and can cause all sorts of damage.
The tesla model s has a bad mcu unit (media control unit) every car made suffers from a programming overload that ruins the tegra 3 emmc flash memory. Once the memory corrupts, the media control unit shuts off permanently. A driver can end up stranded because the car will also stop charging or limit the charge to 21%. The safety systems attached to the media control unit are all off and no longer function. Safety backup cameras, audible alerts and perimeter alarms that would tell you if a person/object is in proximity to the car, all no longer function. The inability to know and react to these safety systems presents a life/safety issue. A child could be behind the car and the car will not alert the driver and the driver cannot see because the camera is also off. The cars media control unit also shuts off mid-drive. The unit turning off without warning, presents a life safety issue.
My tesla did an uncommanded acceleration, jumped the curb and hit a chick-fil-a restaurant on 9/04/2019: 1) first and most importantly, I am 100% certain that I did not touch the accelerator or in any way cause the uncommanded and unintentional acceleration of the vehicle. I have driven cars and trucks well over a million miles and never once accidentally pressed an accelerator or jumped a curb when parking. 2) I have been driving my tesla daily for four months and I am very familiar with the vehicle and it's systems and controls. I am also very familiar with the specific parking space where the accident occurred. I have parked there many times in the past, and mostly in the tesla during the last four months. 3) the details of what took place immediately preceding the accident are as follows: the weather was clear and sunny. While going slowly down a slight slope approaching the intended parking area, I removed my right foot from the accelerator and allowed regenerative braking* to slow the car even more while I positioned my right foot very lightly on the brake pedal while creep mode* kept the car slowly moving forward. With about two feet to go, I modulated the brake pedal pressure to slow the car more and make sure that the front splitter didn't bump the curb..... Suddenly there was a hard impact, a loud bang, and the front right corner** of my car was in the brick wall, all in a very small fraction of a second. It felt like I had been rear-ended, but there was no other vehicle involved. * creep mode & regenerative braking -- see online owner's manual ** hit on "front corner" because parking space is at an angle to the building.
Tl* the contact owns a 2014 tesla model s. The contact stated that one of the headlights would not function without warning. The contact stated that the failure occurred intermittently and, at times, both headlights would not illuminate. The contact took the vehicle to tesla (470 lancaster ave, devon, pa 19333, 610‑407‑7030) and was informed that there was a prior complaint related to the same failure; however, the only solution would be to replace both headlights. The contact was provided an estimate for the cost to replace both headlights. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.*dt
Condensation in the left rear tail light. There are many reports of this since 2013 on the teslamotorsclub.com website under model s forum and exterior. Search water in tail lights and you get many posts and photos.
Tesla model s do not conform to lighting standard 108. The model s do not have a yellow reflex reflector located on the front of the vehicle visible from the side. Natl highway traffic safety admin., dot 571.108, nt.table iarequired lamps and reflective devices page 476. Http://www.gpo.gov/fdsys/pkg/cfr-2011-title49-vol6/pdf/cfr-2011-title49-vol6-sec571-108.pdf they need to add the reflector to make the vehicle legal for street use.
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