2018 TESLA MODEL X Electrical System Problems

The 2018 Model X experienced a sudden and complete loss of power and became totally inaccessible. All doors and access points were inoperable and the vehicle could not be unlocked, disconnected, powered on, or placed into any service or tow mode. Emergency front-trunk release cables had to be used and external 12-volt power applied at the jump terminals to wake the vehicle. The inability to access the vehicle was unexpected and alarming. Children, pets, elderly, and others could have been inside of the vehicle. Thankfully, they were not. Tesla inspected the vehicle and stated the failure was related to the battery coolant heater. The failure resulted in a complete vehicle immobilization and access failure. I had previously experienced restart warnings on the dashboard, but I did not expect a total lockout and loss of access. The inability to access the vehicle was unexpected and alarming. It may be a known...

My 2018 Tesla Model X experienced repeated over-the-air software update failures starting in late December 2025. Each update attempt would run for hours and then fail with a timeout error. This pattern continued for several weeks with the same error every time. After these repeated failed update attempts, the Autopilot ECU (computer) completely failed. Tesla service diagnosed the issue on January 6, 2026 as a failed Autopilot ECU 3.0 requiring full replacement at a cost of $1,808. The failure has disabled Full Self-Driving, adaptive cruise control, lane keeping assistance, automatic emergency braking, and all driver-assistance safety features. I am concerned this represents a systemic defect where Tesla's software updates are damaging or exposing failures in Autopilot hardware. Multiple other Tesla owners have reported this same pattern in 2024-2025: update timeout errors followed by complete Autopilot computer failure requiring expensive replacement. Tesla is charging customers to fix problems created by their...

Vehicle: 2018 Tesla Model X Recall Reference: Tesla eMMC Recall – NHTSA Campaign Number 21V-035 (Recall 21V035000) Defect Description: In March 2021, Tesla notified me by email of a recall involving failure of the eMMC memory chip in the Media Control Unit (MCU). This defect is known to cause loss of vehicle system functionality and safety-related features. Despite this notification, Tesla has refused to honor the recall and replace the eMMC when I brought my vehicle in for service. Current Vehicle Condition: My vehicle exhibits severe and worsening symptoms consistent with eMMC failure, including: System freezing and frequent unresponsiveness GPS extremely slow or nonfunctional Turn signal indicators intermittently fail Horn fails to operate approximately 95% of the time Vehicle reset/reboot does not work Touchscreen and vehicle controls are very slow or nonresponsive These issues occur regularly and without warning. Safety Risk: This defect creates a significant safety hazard. The failure...

Door is not working and causes the car to be unable to drive and to run out of battery. The door failure prevents emergency exit from the vehicle. In the event of a crash, fire, or submersion, I/occupants would be trapped inside the Model X, directly leading to an injury or fatality.

I own a 2018 Tesla Model X 100D. The high-voltage battery has failed twice in seven years. Tesla replaced both with re-manufactured batteries. My battery warranty ends in December 2026, and if it fails again the replacement cost is about $17,000. The car’s full-charge range has also dropped from over 300 miles when new to about 220–240 miles. The value of the car has dropped to around $24,000, largely because of battery issues and the risk of future failure. A high-voltage battery should not be failing this often. If it fails again after the warranty expires, the car is not usable or safe. I believe this may affect more owners than Tesla acknowledges. I am requesting that NHTSA review the safety and long-term reliability of Tesla’s high-voltage batteries and the re-manufactured replacements.

The horn on the steering wheel stopped working. It causes the air conditioning to turn on when pressed.

One fine morning Car would not start and shows some errors. tried using a AAA service and Had the car towed into Tesla SC. After diagnosis they mentioned that a HV x099 connector is corroded. To me this cannot be a vehicle owner fault. This seems to be a failure of an integral part associated with the Battery pack. Tesla has charged me a total of $2891.46 including taxes out of which $85 was for the part replacement and $2626.80 for labor costs. This seems like a major issue with a connector so deeply protected if corrodes this should be a Tesla design/manufacturing fault. ------------- Notes from tech: Repair Notes: towed vehicle into service center and utilized maintainer to power on. Once vehicle was online attempted to pull logs. While logs uploaded verified Hvil alerts present on UI. Began investigation checking hvil circuit from x099 to x098. Removed hv battery...

AC compressor failed within 1000 miles of High Voltage battery being replaced. This is the second AC compressor failure, the first failure occured at approx 70k miles, Nov 2022. The AC is used to cool the battery during high voltage charging and driving. Upon failure speed can be reduced, determined by multiple factors and charging rate is reduced as well. I was told it was an internal failure of the compressor and when pressed further tesla was unable to explain why it failed, again.

I was driving on [XXX] from Carson City to Reno in Washoe Valley while on autopilot, the car suddenly alerted with very loud alarms, showed 1. steering assist reduced, 2. Automatic Emergency Braking is unavailable 3. Traction Control disabled 4. Stability control disabled 5. Park Assist unavailable. I pulled over to a safe parking area. Then the car locked out for 75 mins, in Neutral gear, can't shut off, can't park, can't reset the car at all even after talking to Tesla support. While waiting for the tow truck, I turned it into Tow mode, was able to change into Park mode finally, and hard reset the car. I took it in and Tesla told me the steering system was the problem and I was out of warranty so I had to pay A LOT OF money to repair/replace it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA),...

As proactive and responsible car owners, we experienced an alert on our Tesla X stating it needed service, vehicle may not restart. We also recorded a concerning noise that clearly showed a problem ...And brought the car into the Tesla Blue Ash service center. It was estimated 3/4 hours to repair. After a day or so, we inquired and we were informed of "difficulty" performing diagnosis. We once again patiently waited for a diagnosis that was not received until we inquired again, days later. The car was held for a week and deemed acceptable as noted in the invoice. We drove this vehicle for less than a total of 1-2 hours over Saturday to Sunday to discover it unresponsive in our garage. It was stuck on the charger. HV battery fully charged. Tesla remote came out to remotely help us. They attempted replacement of the 12v and then stated it...

The contact owns a 2018 Tesla Model X. The contact stated while attempting to park, the vehicle suddenly accelerated forward independently. As a result, the vehicle careened through an outdoor dining area, causing extensive property damage. The air bags did not deploy. A Police report was not filed, and injuries were not reported. No warning lights were illuminated. The vehicle was towed from the scene directly to a body shop for the repair. The vehicle was taken to an independent mechanic, who was unable to diagnose the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V838000 (Electrical System) and the VIN was included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 40,000.

Feb 2022 while driving horn engaged and would not go off , had to pull over , steering wheel then locked up and car would not start again but horn continued to go off and had weird smell until it died out. Took vehicle to Tesla service center, was told multiple fuses were blown , mother board and several other electrical/computer issues. May 2023 while parked in driveway horn engaged wound not stop, steering wheel once again locked up and unable to use any features in the car, while looking for fuse to pull to stop horn, noticed smoke coming from under frunk and smelled like something was burning , pulled main front end fuse which stopped the horn and burning. Called Tesla emergency services, advised not to drive it and have it towed to Tesla service center . Tesla repair shop once again said horns were fried along with...

Main touchscreen failed while reversing the car leading to loss of rear view camera. Car was being back out from a crowded parking area after an event risking the health and safety of pedestrians and other vehicles. Failure was sudden and complete without any warning signals. Failure has happened at least twice in the past 2 months, and 2-3 times before that since 2018. It seems to be getting more frequent. Dealer claims this a "software issue" that engineers are working on

While driving on interstate highway at 75 mph, the instrument display and MUC display both go blank. The cruise control did not disengage. No display of vehicle speed, rear camera or other parameters. The display did not return after approximately 2 minutes. The driver then instituted a reboot while still driving. After another 1 to 2 minutes, the instrument panel began to redisplay information. The MUC subsequently displayed information. This is a first time event for this vehicle.

TL* THE CONTACT IS ORIGINAL OWNER OF A 2018 TESLA MODEL X. THE CONTACT HAS EXPERIENCED MULTIPLE INSTRUMENT CLUSTER (IC) FAILURES WHILE DRIVING WHERE THE IC GOES BLANK. CONTACT STATES THAT WHEN THE IC GOES BLANK THE SPEEDOMETER AND TURN SIGNALS ARE NOT PRESENT, AND IT IS NOT POSSIBLE TO ASSESS THE SPEED OF THE VEHICLE OR SIGNAL LANE CHANGES. CONTACT PROVIDED THE FOLLOWING INCIDENT DATES: 29-JUN-2018: INSTRUMENT CLUSTER (IC) GOES BLANK FOR 20 MINUTES ON HWY. CONTACT STOPPED TO CHARGE VEHICLE AND IC CAME BACK ON. CONTACT CALLED TESLA SERVICE (52 DERWOOD CIR, ROCKVILLE, MD 20850, 301-738-6523) AND WAS TOLD TO RESET VEHICLE. 28-SEP-2018: IC GOES BLANK FOR 20 MINUTES WHILE DRIVING ON HWY. CONTACT STOPPED TO CHARGE VEHICLE AND IC CAME BACK ON. 05-OCT-2018: IC GOES BLANK FOR 15 MINUTES ON WHILE DRIVING LOCAL ROAD. CONTACT CALLED TESLA ROADSIDE SERVICE (1-877 798 3752) AND WAS TOLD TO RESET...

ALL SCREENS IN THE CAR SHUT DOWN WHILE DRIVING AND THERE IS NO ACCESS TO YOUR SPEED, BLINKERS, CONTROL OF LIGHTS, CONTROL OF CAR SAFETY FEATURES, WIPERS, ETC. TESLA WAS NOTIFIED MULTIPLE TIMES AND EACH TIME THEY TRIED TO CORRECT THE ISSUE, IT WAS NOT RESOLVED. IT HAS BEEN A YEAR SINCE THE ISSUE STARTED AND HAS HAPPENED OVER A DOZEN TIMES, RESULTING IN UNSAFE DRIVING CONDITIONS. TESLA KEEPS STATING THEY "REMOTELY DIAGNOSE" THE PROBLEM AND TOLD ME TO KEEP AN EYE ON IT AND SEE IF IT HAPPENS AGAIN, ALTHOUGH THEY TOLD ME LESS THAN 2 WEEKS PRIOR TO CALL IMMEDIATELY IF IT HAPPENED AGAIN. THEY HAVE REFUSED TO FIX THE PROBLEM AND IT HAS BECOME A SAFETY ISSUE WITH DRIVING THE VEHICLE.

THE CENTRAL DISPLAY UNIT/MEDIA UNIT (MCU) HAD MORE AND MORE FREQUENT REBOOTS, FREEZES, BLANK SCREENS. WHEN IT OCCURS, MY AUTOPILOT WILL STOP FUNCTION, TRAFFIC INFORMATION WILL NOT WORK, RADIO/SPEAKER WILL BE SILENT, NO TURN LIGHT SIGNAL CLICKING IS AUDIBLE. THE MANUFACTURER REFUSED TO FIX THE PROBLEM, GIVING ALL TYPES OF EXCUSES.

HELLO, I THOUGHT IT WOULD BE BEST TO SEND MY LATEST SERVICE NOTE ABOUT MY CAR. TESLA CONTINUES TO AVOID FIXING OR ADDRESSING THE PROBLEM. WE ARE NOT SURE WHERE ELSE TO TURN AND SEE SO MANY OTHER COMPLAINTS ABOUT THIS ONLINE. I FINALLY DECIDED IT WAS TIME TO REACH OUT TO YOU. THANK YOU IN ADVANCE FOR ANY ASSISTANCE OR GUIDANCE YOU CAN PROVIDE. ' HI THERE ARE NO TIME STAMPS, AS IT HAS FOR THE PAST 6 MONTHS, THE SCREEN IS PERPETUALLY SLOW. I ASSUME IT IS IN THE RECORDS, WE HAVE REACHED OUT TO SERVICE MANY TIMES. WE'VE HAD THE SCREEN REPLACED, WE'VE CLEARED OUT THE MEMORY, GONE THROUGH REBOOTS AND WE STILL HAVE ISSUES. WE CAN RARELY GET TO OUR REVERSE CAMERA IN A TIMELY MANNER, AND ALL FEATURES ACCESSIBLE VIA THE TOUCHSCREEN ARE UNUSABLE. OUR VEHICLE IS NO LONGER SAFE TO DRIVE. WE'VE RECENTLY GONE...

DRIVER DISTRACTION ISSUE WHEN I BOUGHT THE TESLA MODEL X, BASIC VOICE COMMANDS WERE AVAILABLE -- E.G., TO CALL USING A SMARTPHONE, LINKED TO THE CAR VIA BLUETOOTH. THE OPERATION, AS NEW, WAS STRAIGHTFORWARD, AND MATCHED THE THEN-CURRENT MANUAL, AVAILABLE IN 2018. AS IS KNOWN, TESLA UPDATES ITS CAR SOFTWARE, &, IN FACT, MAKES IT MANDATORY THAT THE CAR'S SW BE UPDATED, OR RISK VOIDING THE WARRANTY. NORMALLY, THE NEW SW UPDATES IMPROVE THE OPERATION OF THE CAR. HOWEVER, STARTING IN DECEMBER 2019, THE SW UPDATES, & EACH TESLA 'OWNERS MANUAL' THAT CORRESPONDS, FELL OUT OF SYNC. THE MANUAL WOULD DESCRIBE FUNCTIONALITY, AND THE ACTUAL SOFTWARE, SIMPLY DID NOT HAVE THE FUNCTIONALITY. I'VE READ EACH OF THE UPDATED "MODEL X OWNERS MANUAL NORTH AMERICA", (JANUARY 2020 & OCTOBER 2020), DOWNLOADED FROM THE TESLA WEBSITE. IN EACH CASE, THE CAR FAILS TO CONFORM TO THE OPERATIONAL DETAILS EXPLAINED AT, E.G., THE...

TESLA MODEL X DIES TWO TIMES. 1) AT APX 1K MILES (WITHIN 3 MONTHS OF NEW PURCHASE OF NEW VEHICLE, 1ST OWNER), IT DIED ON FREEWAY WITH NO POWER AND STOPPED. DUE TO SPACING FROM THE REAR CARD, NO ACCIDENT OCCURRED AND HENCE NO FATALITY. TESLA SERVICE CENTER FOUND NOTHING WITH THIS ISSUE. NO RESOLUTION ON DIAGNOSIS AND OR DID NOT CARE SAFETY OF THE DRIVER AND PASSENGERS. 2) AT 9K MILES IDENTICAL ISSUE BUT WITH AN ADDITIONAL ISSUE OF MODEL X GOING IN FORWARD DIRECTIONS WHEN IT SHOWED REVERS ON THE INSTRUMENT PANEL. EVERYTHING IN CAR WAS FROZEN ONLY OPTION WAS FORWARD DIRECTION AT LOW SPEED BUT WITH REVERSE MODE SIGN!! I HAD NOT OTHER CONTROL OVER THE TESLA MODEL X. I HAVE TAKEN VIDEO AT THIS TIME FOR AN EVIDENCE. TESLA STATES THAT THEY DID NOT FIND ANY ISSUE AND DOWN LOADED DISPLAY DRIVER AGAIN!! I FIND IT...

I AM FILING A COMPLAINT AGAINST TESLA REGARDING THE MCU INFOTAINMENT ON THE MODEL X. MY VEHICLE IS 2 YEARS OLD AND BEGAN TO SUFFER MCU FAILURE AFTER UPGRADING TO TESLA'S HW3. THE MCU FAILURES HAS RESULTED IN SEVERE LAG, LOW VEHICLE STARTUP. VEHICLE START UP HAS TAKEN ANYWHERE FROM 10 MINUTES TO 20. RECENTLY, A FAMILY MEMBER WAS REQUIRED TO BE DRIVEN TO THE HOSPITAL. DUE TO THE MCU CAUSING MY BEHAVE SLOWLY, 911 WAS REQUIRED TO BE CALLED FOR AN AMBULANCE. THE MCU FAILURE IS SEVERELY EFFECTING MEDICAL EMERGENCIES. TESLA SHOULD UPGRADE ALL MCU 1 VEHICLES TO THE MCU 2 FOR FREE. .

CENTRAL CONSOLE SCREEN STOPPED WORKING FOR A FEW MINUTES. DURING THIS TIME FRAME, THERE IS NO WAY TO OPEN THE REAR DOORS OF THE VEHICLE. THE ONLY RECOMMENDED OPTION FROM THE MANUFACTURER IS TO REMOVE THE SPEAKERS ON THE REAR DOOR PANEL AND THEN PULL ON EMERGENCY RELEASE. THERE IS NO WAY A PASSENGER CAN REMOVE THE SPEAKERS WITHOUT TOOLS. THIS CAN LEAD TO A SAFETY ISSUE, WERE THE REAR PASSENGERS HAVE NO MECHANICAL WAY TO OPEN THE DOOR TO ESCAPE THE VEHICLE. SIMILARLY WHEN THE SCREEN IS NOT RESPONSIVE, THERE IS NO WAY TO ACTIVATE THE REAR DEFOGGER OR DEFOG THE FRONT WINDSCREEN. THIS SITUATION DRASTICALLY REDUCES VISIBILITY AND CAN LEAD TO AN UNSAFE CONDITION ON THE ROAD. WHEN THE FRONT DISPLAY IS BLANK; THE DRIVER GETS NO POSITIVE FEEDBACK WHETHER A TURN SIGNAL HAS BEEN ENGAGED - NO VISUAL INDICATION OR AUDIBLE CLICKING NOISE. WHEN THIS HAPPENS THE...

SUDDEN ACCELERATION PULLING INTO A PARKING SPACE HEAD FIRST WITH FOOT ON THE BREAK. NEXT THING MY WIFE KNEW WAS THAT SHE HAD JUMPED THE CURB AND HIT 2 OTHER CARS. HER FOOT WAS STILL ON THE BRAKE. TESLA DOWNLOADED THE BLACK BOX. TESLA TOLD US THAT THE CAR WAS TRAVELING AT 3 MPH AND THAT THE ACCELERATOR HAD BEE DEPRESSED. TESLA REFUSED TO SHARE THE BLACK BOX PRINT OUT DUE TO "PROPRIETARY INFORMATION". 3 MPH IN A PARKING LOT, DRY PAVEMENT, CLEAR SKY, 10:00 AM. REPAIR ESTIMATE WAS LOW BY $10,000.

I HEARD THAT NTHSA IS LAUNCHING A INVESTIGATION INTO INVESTIGATING TESLA FOR A UPDATE THAT THE COMPANY RELEASED TO REDUCE THE RANGE OF THE VEHICLES TO ADDRESS A BATTERY ISSUE. I WANT TO LET YOU KNOW THAT I HAVE EXPERIENCED THE ISSUE ON 2018 TESLA MODEL X. I USED TO CHARGE THE VEHICLE AT 90% FOR MY DAILY COMMUTE AND IT USED TO SHOW ME 208 MILES AS THE RANGE. BUT EVER SINCE THE UPDATE ITS SHOWING ME 196 AS THE RANGE AT THE SAME PERCENTAGE OF CHARGING (90%)

INSTRUMENT CLUSTER IN THE CAR FROZE FOR OVER TEN MINUTES ALONG WITH ALL AUDIO IN THE CAR. DISPLAYED SPEED AS 67 MILES PER HOUR FOR THE ENTIRE TIME DESPITE ACCELERATING AND DECELERATING. INSTRUMENT CLUSTER INCLUDING SPEEDOMETER DID NOT WORK UNTIL RESET IN THE CAR.

2018 TESLA MODEL X, 75D. CONSUMER WRITES IN REGARDS TO MAJOR ELECTRONIC FAILURES. *LD

ESSENTIALLY NEW CAR PURCHASED 3 MONTHS AGO WITH LESS THAN 5000 MILES ON IT. CAR FAILED WHILE DRIVING AT HIGH SPEED ON HIGHWAY AND COULD NOT PUT IN PARK, CAR WAS STRUCK IN DRIVE MODE. TONS OF ERRORS AND SAFETY ISSUES. PARKING BRAKE FAILED. AIRBAG AND ABS SYSTEMS FAILED. THIS CAR FAILED ONE MONTH PRIOR ALSO WITH SAFETY ISSUES AT HIGH SPEED AND TESLA SAID THEY FIXED IT BUT CLEARLY NOT.

TL* THE CONTACT OWNS A 2018 TESLA MODEL X. WHILE PULLING INTO A PARKING SPACE, THE BRAKE PEDAL WAS DEPRESSED BUT THE VEHICLE INADVERTENTLY ACCELERATED OVER A CURB BEFORE CRASHING INTO A CEMENT LIGHT POLE. THE FRONT END OF THE VEHICLE WAS SEVERELY DAMAGED, AND THE AIR BAGS DID NOT DEPLOY. THE DRIVER SUSTAINED NECK, SHOULDER, AND CHEST INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW YARD. ON SEVERAL OCCASIONS, PRIOR TO THE FAILURE, AN ERRONEOUS WARNING MESSAGE DISPLAYED WHILE DRIVING, INDICATING THAT THE VEHICLE WAS DRIVING TOO CLOSELY TO THE PRECEDING VEHICLE, EVEN THOUGH ANOTHER VEHICLE WAS NOWHERE IN THE VICINITY. THE CONTACT INDICATED THAT THE FAILURE OCCURRED ON MULTIPLE OCCASIONS, INCLUDING SHORTLY BEFORE THE CRASH. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE LOCAL DEALER WAS NOT CONTACTED FOR DIAGNOSTIC TESTING OR REPAIRS. THE FAILURE MILEAGE WAS 1,500.