2012 Tesla Model S Electrical System Problems

I tried to start the car and got the “Center Display unavailable” message. Reset the computer doesn’t help. I have to wait for more than 5 minutes for the system to be on.

I charge my Model S on a 30 amp circuit with the car location amperage set to 20 amps to avoid overheating the circuit. Around Sept 12 while plugged in to the 30 amp, the car pulled in 50 amps off the line causing a melting of the wires and a near fire based on the damages later found. The car is supposed to send charging error alerts or problems via the Tesla app. Instead it continued to try to pull power out of the burnt line for 11 days all the while further depleting the battery. I discovered my car a 0% battery range with a dead 12 volt as well just as it had depleted and discovered the burnt up wires. I charged the 12 volt and got the car to take a charge. The 20 amp charge setting upon starting the car had changed itself to 50 amps. I lowered the setting and began charging the car. I was then able to move my car to a faster 50 amp circuit because the 120 v 10 amp circuit was going to take 3-4 days to charge the car or longer. I plugged the car into the 50 amp circuit set at 40 amps and let the car charge. An update was then pushed to the car. After the update completed. I got a charging error message via the app. I went to the screen and checked my charger. My Gen 2 wall charger indicated an overvoltage error and my car screen showed it tried to pull 80 amps off my 50 amp circuit. I lowered the amps back down and reset my wall charger. It appears after updates or at random, the car is changing the charge amps and sometimes exceeding the amperage the outlets and wires can provide. If the in house breaker or circuit in the wall charger doesn't trip, the car will pull in more amps than the circuit can handle and may cause a fire. This is a dangerous potential problem that I luckily narrowly avoided. I contacted Tesla about this issue. The car is set for evaluation at my expense since it is out of warranty. I have burnt wires, almost lost my high voltage battery to zero'ing its charge, and could have lost my shop or life.

Both the 12 volt system and High voltage battery system or a component communicating between the two failed. I received a warning message that my vehicle may not restart and within 30 seconds it completely shutdown while driving in the middle of the road. The vehicle was essentially dead weight at this point. None of its features worked, the ability to unlock it, the ability to use electronic doors and windows functions could not be performed. it could not even be jumped to start the computer enabling it to be towed or put in neutral to even remove the vehicle from the roadway. The manufacturer has confirmed an inner fault within the High Voltage battery pack. I have since purchased and replaced this entire battery pack as it was said to be unserviceable.

The vehicle was not experiencing display or review view camera display issues but was out of caution serviced nuder Manufacturer Recall Number SB2121001 (NHTSA Recall Number 21V035) for no charge. The vehicle is not under warranty. There was no charge for the initial "repair". When the vehicle was returned, the rear view camera did not function (black screen and/or serious flicker when video was partially displayed). Also bubbles were introduced into the front display panel. On questioning the repair, I was strongly encouraged by technician and then by manager to get an updated "infotainment with an upgraded MCU" (which is unclear but perhaps a superset of the VCM and display components that are under recall), for a cost of $2000 and $500 for it to include FM radio (that I already have and always worked fine). The manager offered a deal for $1000 + $500 to include FM radio. An appointment was set up and the estimate for approval was $1500 for "infotainment upgrade" and $500 for "Radio upgrade", and $120 taxes for a total of $2120.00 I will cancel the upgrade and inquire again if the recall work is able to return the vehicle in working order without it needing a $2000 upgrade to resolve an issue related to loss of viability and backup camera (cited under the recall) and to charge me $500 for an FM radio I already have that works fine.

MCU failure after 12 months replacement that I paid for at time of replacement. Service center cannot schedule a service for 2 weeks.

I appears that Tesla had capped my battery. I have lost significant range for no reason and they have no explanation.

As the car drains the battery pretty quickly, I have turned on energy saving mode. In this mode the car enters a deeper sleep, consuming less power. Sometimes in this mode when starting the vehicle, the turn signals will not work (this appears to happen when the car sits for a while and the miles left on the battery is under 120 or so). After a quick stop (2 minutes out of the car), the turn signals will start working, and the driver display will show the blinking turn signal when they work, but it will not display when they do not work. Another issue is that after entering the car and "turning it on", by pressing the break, sometimes the driver display (which shows speed and current drive mode, PRND indicator) will be blank, not showing any information, despite the ability to operate the car, etc.

The contact owns a 2012 Tesla Model S. The contact stated that while driving at various speeds, the vehicle made an abnormal grinding noise without warning. The contact had taken the vehicle to a service center where they replaced the drive unit under warranty. Recently, the contact had taken the vehicle to a service center for the recall repair for NHTSA Campaign Number: 21V035000 (Back Over Prevention, Visibility, Exterior Lighting). The day after the recall repair was performed, several unknown warning lights appeared on the EMMC while driving at various speeds. One of the messages that appeared on the EMMC was for the "loss of power voltage to the system, take the vehicle to a nearest service center". Due to the failure, the contact had the vehicle towed back to the service center where he was informed that his drive unit needed to be replaced again. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 110,380.

I recently had my Tesla Model S serviced due to the touchscreen going blank (losing functionality of defrosting, temperature, sunroof, and a list of other issues). Driving with a fogged up window is dangerous. Thank you to the NHTSA for forcing Tesla to replace it free of charge. Unfortunately, it appears that Tesla is not replacing it with a new unit. Instead it is a refurbished unit. Just days after servicing I got in the car to drive and the following error comes up on the touchscreen: "Center display memory storage device is degraded. Without repair, center display may enter limited functionality mode and only display rear view camera. When in limited functionality mode, it may be required to press brake for 30 seconds or press key fob unlock to authorize drive. Please use the Tesla Mobile App to schedule service." I find this quite troublesome and felt it worthy to apprise the NHTSA that Tesla is clearly not abiding by its requests.

eMMU seem to have caused "Console display not available error"

I WAS DRIVING ON THE FREEWAY OVER THE HILL THE VEHICLE SHUT DOWN ON ME AND IT WAS 43% ON THE BATTERY AND IT KEEPS SHOWING THE YELLOW ON THE DASH SAYING THAT BATTERY IS OVERHEATING

I REACHED OUT TO TESLA ABOUT THE EMMC RECALL. I BOOKED AN APPOINTMENT, PROVIDED PHOTOS OF VARIOUS BLACKOUT, SCREEN FREEZING AND LOSS OF CONNECTIVITY ISSUES. TESLA INSTRUCTED ME TO UPDATE THE FIRMWARE (WHICH I DID) AND CANCELLED MY APPOINTMENT AND TOLD ME I DID NOT TO BRING IN THE CAR. THEY ALSO SAID THEY WOULD CONTACT ME IF MY EMMC NEEDED REPLACEMENT. HOWEVER, I CONTINUED TO HAVE THIS PROBLEM AND LEFT A MESSAGE IN THE TESLA AND DID NOT GET A RESPONSE.

THE HEATER AND DEFROSTER STOPPED WORKING IN THIS COLD WEATHER AS WE WERE DRIVING HOME WITH MY SONS. THEY WERE FREEZING AND COLD. I WAS NOT ABLE TO SEE CLEARLY RATHER VERY FOGGY WINDSHIELD DUE TO NON-WORKING CABIN HEATER AND DEFROSTER. THIS ISSUE HAD HAPPENED TO MANY MANY TESLA OWNERS, INFACT MODEL S LIKE MINE AND EVEN THE BRAND NEW TESLA MODEL 3 AND MODEL Y WITH JUST LESS THAN 10O MILES. THIS CLEARLY IS A HUGE NEGLIGENCE ON THE PART OF TESLA NOT WANTING TO FIX THE ISSUE. HOWEVER, NOW RIGHT AFTER GETTING THE CONTROL TOUCH SCREEN ISSUE ADDRESSED, THE SAME DAY TESLA TOLD ME THE CAR IS READY AND THAT I CAN PICK IT UP. THIS WAS VERY NEGLIGENT ON TESLA AUGORAHILLS SERVICE CENTER PART. THE HEATER WAS NOT WORKING ONCE I STARTED DRIVING THE CAR BACK HOME. TESLA SHOULD HAVE UNDER SAFETY PROTOCOL FIXED THE VERY IMPORTANT SAFETY TOOL SUCH AS THE CLIMATE CONTROL AND NEVER SHOULD HAVE RELEASED THE CAR TO ME TO DRIVE LAST NIGHT 12/28/2020. ONCE I PICKED UP THE CAR AND DRIVING BACK HOME WITH MY SONS WE WERE VERY COLD, TO NOTICE THE HEATER IS NOT WORKING/OPERABLE. THIS BECAME MORE CHALLENGING ONCE THE VISIBILITY WAS HINDERED WITH FOGGING EFFECT AND THE SAME NIGHT IT WAS RAINING HERE IN AUGORAHILLS AREA CA AND IN SANTA CLARITA AREA CA. IN MANY CASES WHERE THE FOLKS ONLINE HAVE DISCOVERED THE CIRCUIT BOARD FOR THE HEATER CORE ITSELF WHICH IS CALLED THE PTC IS NOT PROPERLY SEALED WHICH ALLOWS IN MOISTURE AND SHORTS CIRCUITS THE DC-DC CONTROL JUNCTION BOX WHICH HOLDS 3 - FUSES. ONE FUSE FOR A/C , ANOTHER FUSE FOR HEATER, THIRD FUSE FOR BATTERY HEATER. PLEASE PLEASE INVESTIGATE THIS ISSUE. TESLA TELLS ME THE FUSES BLOW IN THE DC-DC CONVERTER CAUSING THIS. THEY ARE AWARE.

ON NOVEMBER 23RD 2020 I TOOK MY MODEL S ([XXX]) TO TESLA SERVICE CENTER LANCASTER, PA FOR THE TESLA WARRANTY ADJUSTMENT PROGRAM WHICH WAS ANNOUNCED ON NOVEMBER 9TH AND RELATED TO MALFUNCTIONING TOUCHSCREEN DUE TO A MALFUNCTIONING EMMC. THIS IS THE RESULT OF THE SERVICE VISIT; 1) TESLA LANCASTER, PA SERVICE CENTER TOLD ME MY VEHICLE IS NOT IN THE WARRANTY PARAMETERS (THE TESLA WARRANTY ADJUSTMENT PROGRAM STATED 8YEARS/100K MILES. MY CAR HAS LESS THAN 100K MILES AND INITIAL DELIVERY WAS NOVEMBER 24TH 2012 - SO TESLA LANCASTER, PA WAS WRONG ABOUT THIS AS SERVICE DATE WAS NOVEMBER 23RD, 2020) 2) TESLA LANCASTER, PA SERVICE CENTER STATED "THE VEHICLE IS NOT EQUIPPED WITH THE EMMC" (A 2012 MODEL S HAS TO HAVE SOME TYPE OF MEMORY DEVICE IN IT - I WOULD EXPECT IT TO BE AN EMMC OF SOME SORT. THE NOVEMBER "WARRANTY ADJUSTMENT PROGRAM" STATED NO-COST REPAIRS FOR MALFUNCTIONING EMMC BUT LANCASTER, PA SERVICE CENTER DID NOT REPAIR MY CAR.) SO IN SHORT WHEN I TOOK MY CAR IN FOR NOVEMBER WARRANTY ADJUSTMENT PROGRAM RELATED TO SCREEN GOING BLANK INTERMITTENTLY TESLA WOULD NOT FIX IT. MY SCREEN IS STILL BLANK INTERMITTENTLY BECAUSE TESLA WOULD NOT REPAIR IT AND NOW WITH THE FEBRUARY 2021 NHTSA RECALL 21V035 RELEASED I WOULD LIKE THIS SCREEN ISSUE FIXED PROPERLY AND PERMANENTLY. REGARDLESS OF WHAT EMMC OR MEMORY DEVICE IS IN THE CAR THE NHTSA SAFETY CONCERNS STILL APPLY (UNAVAILABILITY OF THE REARVIEW CAMERA DISPLAY, DEFROST/DEFOG CONTROL SETTINGS FOR PURPOSES OF ENSURING VISIBILITY, AND EXTERIOR TURN SIGNAL LIGHTING MAY INCREASE THE RISK OF A CRASH). I AM REQUESTING THE MCU BE REPLACED WITH MCU V2 FREE OF CHARGE BECAUSE TESLA STATED MY 2012 MODEL S DOES NOT HAVE THE 8GB EMMC AND BECAUSE OF SAFETY CONCERNS WITH THE CURRENT STATE OF THE MCU. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

Tesla has rejected my claim for repayment for the emmc repair that I paid for that was performed by their Toledo, OH Service Center prior to the recall. I've tried contacting them as outlined in their recall correspondence but haven't received an explanation as to why I don't qualify. The repair was performed on 8/28/2020 on repair order#3000s0001353764.

MAIN INFOTAINMENT SCREEN FAILS TO RESPOND AND NEEDS TO BE REBOOTED FREQUENTLY

THE INFOTAINMENT SYSTEM IS FREEZING WHICH DOESN'T ALLOW YOU TO USE ANY FEATURES OF THE CAR EXCEPT BASIC DRIVING FUNCTIONS. THIS HAS BEEN ATTRIBUTED TO A CHIP FAILURE IN THE MCU.

THE TOUCH SCREEN ON THE TESLA IS BLACK AND WILL NOT TURN ON. IT'S AS IF THE COMPUTER IS DEAD. IT WAS WORKING I PARKED AT UPS DELIVERY GOT OUT, DROPPED OFF A PACKAGE GOT BACK I. THE CAR LIKE NORMAL WITH THE KEY FOB, SAT DOWN PRESSED THE BRAKE AND NOTICED NOTHING MOVED, IN OTHER WORDED THE SEAT, AND THE TOUCH SCREEN STAYED OFF. NOTHING CAME BACK AFTER THAT...

THE MAIN COMPUTER IN CAR - MEDIA CONTROL UNIT - MALFUNCTIONED... IT CRASHED AND CAUSED NO TURN SIGNALS, NO REAR VIEW CAMERA, AND NO HVAC. CONTROLS FOR HEADLIGHTS ALSO GONE

TOUCHSCREEN LOCKS UP AND PERIODICALLY NEEDS TO BE REBOOTED WHEN DRIVING DOWN THE ROAD. GETTING WORSE, ALSO NEEDS TO BE REBOOTED EACH MORNING WHEN STARTING. SEVERAL TIMES THE TOUCHSCREEN NEEDS TO BE REBOOTED MULTIPLE TIMES IN A ROW. DID ASK A TESLA SERVICE PERSON ABOUT IT TODAY, THEY SEEM WELL AWARE OF THE PROBLEM BUT WILL NOT FIX SINCE THE CAR IS OUT OF WARRANTY. I CONSIDER IT A SAFETY ISSUE, DO NOT FEEL SAFE REBOOTING WHILE DRIVING. I PURCHASED THE VEHICLE AT SALVAGE WITH SOME BODY DAMAGE, FIX MYSELF ABOUT 2 YEARS AGO. IN NO WAY IS THIS ISSUE RELATED. HAVE BEEN DRIVING THE CAR 2 YEARS AND 53,000 MILES SINCE I FIXED IT. TESLA CANCELS WARRANTIES AND OTHER ON ANY CAR INVOLVED IN ANY TYPE OF INCIDENT SO I MOSTLY FIX MYSELF. *TR