2018 Tesla Model X 75D electrical system problems

“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 pack and found corrosion on connector x099. Inspected battery pack and also found corrosion on pack side connector. Will require removing ancillary tray in order to investigate corrosion further into the pack. after removing ancillary tray i found the corrosion had not gone past the low voltage…”

“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.”

“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 wasn't safe and that he couldn't put it into tow mode due to the voltage leak concern. We had two AAA tow truck drivers refuse attempt to tow the vehicle due to the impossible location. We were informed by Tesla that based on their algorithm at the first appointment nothing alerted them despite our video of the concern. They…”

“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 other electrical problems, the smell of something burning was still present , same as event in 2022. Rear safety belt malfunction alert pops on and off for past 2 years .”