2018 TESLA MODEL X Complaints

Car lost power on the highway suddenly and would not start after and we pulled over on the side of the highway. Took a picture of all the alerts. Heard a loud thunk noise when the car lost power, did not hit anything in the road. Event: 2:21pm March 31,2024. Was needed to be towed to service center. BMS u008 error displayed on screen among others. No alerts until the immediate loss of power. _ _ limpMode Acceleration and top speed reduced Performance may be restored on next drive After the Tesla service center ran diagnostics they discovered that the HV battery failed and needed to be replaced. This put my entire family (wife and two children) at risk to a major accident either due to the sudden deceleration of the vehicle and being rear ended by another vehicle on the highway (I was traveling at highway speeds when the failure occured).

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.

Control arm squeaks. Only way Tesla fixes is to replace. Smoke fix is a 2$ grease application to ball joint but they charge 1500$. I have done it 2 times and now again happened.

On [XXX], around [XXX], I was driving my 2018 Tesla Model X on [XXX] , waiting to turn left into [XXX]. While stopped in traffic on the slight incline, my vehicle unexpectedly shifted into automatic park without input. The car rolled back slightly, and the vehicle behind me bumped into my rear bumper. I shifted back into drive and moved forward, but moments later, the same malfunction happened again—the Tesla went into automatic park, rolled back, and was bumped once more. Both incidents frightened my [XXX] daughter, who began crying and was visibly shaken. The likely cause is a failure in Tesla’s “roll-away prevention” safety feature, known to trigger due to sensor errors. This is a serious hazard. Sudden uncommand shifting into park in live traffic creates risk of rear-end collisions, injuries, or worse, especially in school zones or high-traffic intersections. I have since found numerous reports of similar issues from other Tesla owners, including incidents on highways, showing this is not isolated. See example: Reddit thread . At this time, the car has not yet been inspected by Tesla, police, or insurance representatives. There were no warning lamps, error codes, or prior symptoms before or during the failures. This malfunction caused two rear-end collisions in minutes, endangered my child, and could easily have escalated into a major accident. Tesla must urgently investigate and correct this automatic park/roll-away prevention defect before it results in severe injury or fatalities. No repairs for my vehicle as I was able to pop back in the light cover. Other driver is making a claim into which I believe is a preexisting issue but cannot prove. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On July 25, 2025 I was installing a toddlers car seat in the vehicles rear passenger seat. Upon clipping the secure straps onto the rear seat, I noticed the seat slid all the way to the front position - the seat was loose - sliding back and forth. Nothing appeared to be visually broken. I made an appointment with Tesla and they report that they “replaced an actuator” that had failed. The failure caused the entire rear seat to slide without warning and no way to secure the seat. Tesla does not consider this a safety issue. Tesla is charging $1800 for repairs. Tesla says the broken part is not available for inspection. Tesla seemed to indicate that a possible electrical component failed that resulted in this issue.

During a recent inspection, the Tesla service center (at Los Gatos) informed me that my Model X is missing a suspension bolt, and they stated they do not now why and how it's missing. It is a serious safety hazard, as it may affect handling, stability, and safety. They asked me to get it fixed before driving it. They told me that it's not covered by warranty or insurance, but couldn't explain why this happened.

The contact owns a 2018 Tesla Model X. The contact stated that while driving at an undisclosed speed, the steering wheel seized with the message “Steering Assist Reduced” message displayed. The contact stated that the steering wheel became difficult to turn. The vehicle was taken to the dealer, where it was diagnosed and determined that the steering rack had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 100,000.

Tesla X in full self driving mode failed to lower speed and detect stopped in-lane vehicle on a very sharp turn, crashing into the back of the vehicle at significant speed.