Tesla Model 3 Engine problems by year

The contact owns a 2018 Tesla Model 3. The contact stated that while driving 35 MPH, several unknown warning lights illuminated and the engine seized. The contact stated that the failure had occurred in heavy traffic. The Police arrived and assisted with traffic control. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The contact stated that after several attempts to start the vehicle, the vehicle started. The vehicle was driven to the shoulder of the roadway and was left...

High voltage fast charge contactors experienced partial weld failure (BMS_a167_SW_FC_Partial_Weld) during routine Supercharging, causing complete HV system shutdown (hvState = HV_DOWN). Vehicle also threw BMS_a085/a086 Pack and Fast Charge Contactor Mismatch codes. Tesla service is refusing to cover repair under the 8-Year HV Battery Warranty, claiming fast charge contactors are not a warranted component despite being integrated into the HV battery assembly. Vehicle has been at Duluth, GA Tesla Service Center since approximately June 8, 2025.

While driving my Tesla, Autopilot was engaged and navigating with the destination entered. At the time of the incident, my hand was on the steering wheel when the vehicle suddenly attempted to make a hard right turn toward a divider. This was not an exit or intended route, which raises serious concerns about what caused the vehicle to react that way. In addition, I have experienced multiple battery-related issues with this vehicle. The battery has already been replaced once, and on approximately 2-3 occasions the...

Possible unintended acceleration incident While approaching the driveway the car accidentally accelerated on its own, cause a collision. We request that Tesla preserve all vehicle logs and telemetry data for safety investigation. VIN: [[redacted]] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tesla failed to properly diagnose a high-voltage battery isolation fault in my 2018 Model 3. Despite safety-critical BMS_a027 and BMS_a142 faults indicating multiple isolation failures, they skipped required insulation resistance testing, falsely blamed sand in a connector, and charged me $174.95. After the issue returned, they reversed course, replaced an internal battery contactor, and reduced the $1,173 estimate to $356 - admitting fault without owning it. Days later, a diagnostic showed dangerously low isolation...

Documenting a sudden unintended acceleration experience. Today while driving and trying to stop for a red light, I lightly applied pressure on my brake pedal to brake for the red light. Midway through the braking, my car lunged forward for about half a second. Went through the dash cam footage, and I noticed that the footage skipped half a second as well. Seems like something electrical that caused the car to lunge. This is a huge safety issue.

On March 21, 2025, my Tesla Model 3 Long Range entered "Power Reduction Mode" - a safety feature that limits power to protect the high-voltage battery from overheating or failure. Tesla later diagnosed a coolant leak near the battery area. Their own service advisor stated in writing that the failure was "most likely related" to the battery's thermal management system - the very system responsible for regulating battery temperature and preventing damage. Despite the connection to the battery protection system and...

Tesla has told me the AP4 computer has failed in my car which has resulted in them having to replace it. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, Vehicles built in GPS to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be too dim in most driving conditions, constantly fail to install system improvements and...

Specifically when in somewhat cool and cold temperatures the Front Drive Unit is emitting abnormal high pitched sound that is intermittent at times and that is causing a distraction while driving and is very bothersome. Tesla acknowledged they hear it but nothing is being done about. Front Drive Unit should be replaced.

The following will happen in drive or reverse. Causing the vehicle to enter a free roll condition. If the vehicle detects both pedals are pressed. The vehicle will then disengage the motors and the brakes. And it will free roll. The vehicle does not successfully maintain stop and hold in this case. I was stopped at a red light and on an uphill. When the light turned green, I bumped the brake pedal when I went to accelerate forward in drive. My car rolled backwards downhill as a result. My instinct was to press...

The rear motor failed on my car. It has less than 4,000 miles on it. It is already being worked on. The car barely gave me 10 seconds before it lost power, locked up and wouldn't move. Yes. They told me the rear motor failed and needed to be replaced. Tesla inspected it themselves and confirmed the issue. Yes, they appeared 10 seconds before it died, I had no other warnings prior to that. This was extremely dangerous as I barely had time to get to a safe place.

Vehicle was in cruise control, and cruise control did not deactivate causing the vehicle to propel into a building, causing airbag deployment. Safety sensors of car failed to recognize building, other vehicles, and obstructions as required.

What component or system failed or malfunctioned, and is it available for inspection upon request? Car stopped working in middle of road How was your safety or the safety of others put at risk? Luckly there were no traffic or car behind , I am not moving the lane. Personal safety and passenger safety Has the problem been reproduced or confirmed by a dealer or independent service center? Tesla service center at spring field NJ , told me, Front module was at fault and replaced Has the vehicle or component been...

The Tesla is reflecting an error "DIR_a126" that is reducing the speed below the speed limit and with no rhyme or reason. Tesla services are not available and the problem is intermittent. Additionally, based on research it is found to not have consistent resolutions and reasonings

The contact owned a 2022 Tesla Model 3. The contact stated that while driving at an undisclosed speed and merging into the right direction of the highway, the vehicle lost control, swerved from left to right, and spun. As a result, the contact crashed into the concrete divider where the vehicle came to a stop. No warning lights were illuminated at the time of the failure. No injuries were sustained. The police were at the scene however a police report was not filed. The vehicle was totaled by the insurance company. The contact mentioned an unknown recall being related to the safety failure experienced. The manufacturer was not made aware of the failure. The failure mileage was unknown.