2019 Tesla Model X Electrical System Problems

After charging, the car threw over 16 error codes and would not drive. Tesla advised the car experienced a High Voltage battery failure. Some the error codes experienced were: GTW_w370 Battery charge level too low Charge now - Vehicle may not wake from sleep BMS_w017 Service is required PULL OVER SAFELY DI_u014 Unable to drive Voltage supply too low MORGANVILLE GTW_W157 Power reduced Vehicle systems shutting down BMS_f017 Service is required PULL OVER SAFELY TAS_a218 Air suspension adjustment unavailable Functionality may be restored on next drive BMS_u018 Maximum battery charge level reduced OK to drive - Schedule service BMS_u008 Acceleration and top speed reduced Performance may be restored on next drive BMS_W107 Vehicle may not restart Service is required BMS_f107

The contact owns a 2019 Tesla Model X. The contact stated that the Full Self-Driving system was updated in June 2025. Since the update, while idling at red traffic lights, the vehicle was surging forward as if it were trying to run the red light. The contact had to immediately depress the brake pedal to prevent the vehicle from accelerating unintendedly. While attempting to make a right lane change, the vehicle suddenly seize mid-lane-change and returned the vehicle to the original lane. The contact made 2 to 3 attempts before being able to make the lane change successfully. The vehicle also independently attempted to make the lane change as if self-correcting the vehicle. The failure was intermittent. The vehicle was taken to the dealer, and the vehicle suddenly ran a red-light while being test driven. The contact stated that the dealer expressed that it was a known issue after the software update was completed. The vehicle was not diagnosed or repaired. The vehicle was taken to another dealer, Tesla (1731 Fourth St, Berkeley, CA 94710); who was unable to diagnose or repair the vehicle. The manufacturer was made aware of the failure. The failure mileage was approximately 5,000.

I plugged in a tester into the 7 pin trailer harness that is factory installed and the harness does not work. Specifically, there is no 12V power coming from the harness. I googled the issue and it is very common on 2018 and 2019 Tesla Model X’s, and people say when they went to the dealer they said that the factory wired it incorrectly but that it was a simple fix. I went to my dealer and they wanted to charge me money to fix this issue that has been present but unnoticeable on my vehicle until recently. Not having 12V power to the harness is vary dangerous because if towing a trailer with electric brakes, they will not work, and there is no way to tell this except for using a tester at the harness.

Tesla display and navigation dashboard went dark 3 times while driving on the highway. For 4 minutes I could not see what speed I was going at, I could not give any indication. The risk was that the car could have stopped while in the lane and crashed or caused an accident. This has happened twice before

On Jan 1st, approx 6 PM (completely dark), I was driving my 2019 MX (41K miles) traveling at 60-65MPH on I5. All of a sudden, I noticed a series of dashboard warnings popped up with warning sounds -> "Acceleration/top speed reduced", "Performance Reduced", "Service Require", and "Vehicle system shutting down". I had to pull over to the left shoulder due to limited control of my MX and I was only able to coast without any control of my power padel.. It was a scary moment hearing the beeping warning sound and the cars flying by in the express lane. feeling the MX shaken every time when car passes by. I tried to call Tesla roadside assistance and waited for >40 min without anyone picking up the call. Decided to call the highway patrol and we were EXTREMELY LUCKY when the patrol car pulled up to protect us with its flashing warning lights. Because within five minutes of highway patrol arrival, ALL POWER shut down!! My warning light blinker and headlights were out COMPLETELY!!! We could have been in a detrimental situation if the patrol car did not show up and ended up with cars/semi running into our parked MX. After the tow truck (summoned by the officer) towed our MX to the nearest SC (4.5 miles away), we paid the outrageous $930 fee. After the Tesla rep informed me the HV battery and the 12V needs to be replaced.

February 2022: On Feb 23 and 27, 2022, the vehicle would not start when parked. It was taken to the Tesla service center on March 1, 2022. As shown in the service notes from (Exhibit 2), the service center " found micro SD card issues causing center display communication issues and loss of support for low voltage battery, tech replaced micro SD card, installed firmware and replaced 12 V battery". We took Tesla diagnosis and repair at face value, and our family drove the car for approx. 8000 miles additional miles before the second failure occurred. August 2022: While driving with my wife at 65 miles per hour around 1:45 pm on August 7, 2022, on a very busy Hwy 91 East in the Los Angeles area, the vehicle lost power unannounced, and in less than 2 minutes of the first warning lamp coming on. With the help of very limited residual power that was left in the car, I was able to navigate the vehicle to the triangle between 2 merging freeways. We can only surmise that since I turned on the hazard lights immediately after the first warning lamp was on and there was sufficient distance between the vehicles behind us, we avoided a major accident that could have resulted in bodily injury or death not only to me and my wife, but for others on the freeway. We were stuck in that narrow space for over an hour as we were on hold with Tesla Roadside Assistance for a very long time. The gears would not change, and no amount of hard boot would restart the vehicle. Luckily, we had requested a tow truck from AAA about 40 minutes into the wait and it arrived within 20 or so minutes after the Tesla said the car had to be towed. It was the most traumatic and scariest experience of our lives, whose emotional scars are still fresh in our minds. Imagine vehicles whizzing by us within inches where we were parked causing our vehicle to shake very hard every time a vehicle passed by, reminding us of the danger we were in. The vehicle was towed to the closest Tesla service center.

The contact owns a 2019 Tesla Model X. The contact stated while attempting to start the vehicle, the vehicle would not start. After several hours, the contact was able to start the vehicle and drove home. The vehicle was taken to the dealer and the 12-Volt battery was replaced; however, the failure reoccurred. The contact stated while driving 65 MPH, the vehicle started losing power. The contact pulled over to the side of roadway and the vehicle lost motive power and stalled without warning. The contact was not able to restart the vehicle. The vehicle was towed to the dealer where they diagnosed the vehicle and they stated that fuse #107 was blown. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was 34,234.

My car at a complete stop at a red light and sudden the car accelerated so fast forward ( unintentioned accelerated ) and rear ended the car in front. Need to take a look into car electrical and software issue

The MCU (Media Control Unit) and the driver's dash goes out while driving under normal driving conditions. When the MCU and Dash goes dark/dies, the turn signals don't work, the rear view camera goes out, the blind spot warning and lane departure warning is disabled and the speedometer doesn't display. Basically I was driving in the dark. It was a very dangerous situation. Fortunately I was driving and not my wife who is the primary driver. This is no longer a technical safety concern but rather a safety issue for us and for others. I brought it in for service 2 times and the outcome was: we're aware of the bug and working on an over the air fix but no ETA. This is not an isolated issue since it occurred many times captured below: Jun 22 - 8:33 PM PST Jun 30 - 8:32 AM PST Jul 2 - 12:32 PM PST Jul 8 - 5:58 PM PST Jul 13 - 8:09 AM PST Jul 16 - 6:46 PM PST This is similar to the situation that occurred in the collapse of the condo in Florida. In that case: 1. They were aware of the issue 2. They knew they had to fix it 3. But they didn't take responsibility nor accountability. They should have evacuated the building instead of killing 100+ innocent lives. In our case: 1. Tesla knows there's an issue 2. Tesla knows it needs to be fix 3. Tesla refuses to take immediate action until something drastic occurs.The car is practically brand new with only 5K miles on it. I have videos to capture this frightening ordeal.

HISTORICALLY (MAY 2019 - DEC. 2020), THE SCREENS (SHOWING SPEED, AUTOPILOT STATUS, AND OTHER INFORMATION) WOULD SOMETIMES GO BLANK. I REPORTED THE PROBLEM IN MY 1ST WEEK OF OWNERSHIP (IN MAY 2019) AND PERIODICALLY THEREAFTER. TESLA REMOTELY SENT A FIX FROM TIME TO TIME, BUT THE PROBLEM PERSISTED. I THEN LEARNED FROM THE MEDIA (NOT TESLA OR THE NHTSA) THAT NHTSA HAD MANDATED A FIX ON 2016-2018 MODEL X'S BECAUSE OF SCREEN FAILURES. I ASKED TESLA TO FIX MY 2019 (NOTING THAT IT APPEARED TO BE THE SAME PROBLEM AS WHAT HAD REQ'D. THE NHTSA MANDATE, AND TESLA DID FIX IT (OR SAID THEY DID) A FEW MONTHS AGO. BUT ON APRIL 13, 2021, THE PROBLEM CAME BACK AND FAR WORSE. ON THAT DAY AND WHILE DRIVING MY SON TO UPSTATE NY BY HIGHWAY, THE SCREEN DID NOT SIMPLY GO BLANK (AT LEAST NOT INITIALLY ... IT DID EVENTUALLY) BUT FIRST "FROZE" FOR OVER A MINUTE WHILE FALSELY STATING THAT I WAS STILL IN AUTOPILOT (HANDS OFF PEDALS AND STEERING WHEEL) GOING ROUGHLY 70MPH ON A HIGHWAY. AGAIN, DURING THE FREEZE, THE SCREEN (FROZEN) FALSELY SAID I WAS STILL IN AUTOPILOT (WHEN, IN FACT, AUTOPILOT HAD DISENGAGED). I ALERTED TESLA TO THE PROBLEM APRIL 14 AND BROUGHT THE CAR IN FOR AN APRIL 15 FIX. TESLA ADDRESSED IT, BUT I CAN HAVE NO CONFIDENCE IN THE FIX (1) GIVEN THE HISTORY; AND EVEN MORE SO BECAUSE (2) TESLA'S INVOICE FALSELY DESCRIBES THE PROBLEM AS SIMPLY A "BLANK SCREEN" (WHICH IS NOT NEARLY AS DANGEROUS, BC THE DRIVER IS AT LEAST ALERTED TO THE PROBLEM), AND SAID SIMPLY THAT ITS "ENGINEERING TEAM IS AWARE ABOUT THIS ISSUE AND IS CURRENTLY WORKING ON A RELIABLE SOLUTION. ISSUE WILL BE RESOLVED IN ONE OF FUTURE FIRMWARE REVISIONS." THIS SEEMS DANGEROUS AND UNACCEPTABLE.

THE DRIVER SIDE WINDOW DOESN'T ROLL ALL THE WAY UP WHEN TRYING TO CLOSE IT AUTOMATICALLY WITH ONE BUTTON PUSH. IT GOES PARTIALLY UP THE SIDE AND THEN WILL AUTOMATICALLY ROLL DOWN.