2018 TESLA MODEL 3 Complaints

I recently took my car in for a recall for the trunk wiring harness and have never had any major issues since I purchased it in 2018. Since replacing the recalled harness, I’m starting to receive several alerts from my driver assistance system (emergency brakes, camera failure). I called a service tech who mentioned there’s either a failed camera or a failed wiring harness. Looking online, I was shocked to see hundreds of other owners with a 2018 model 3 also experiencing the same issue in 2024 (assuming after they replaced the recently recalled harness). I strongly believe that these two issues are related and that the camera should be replaced alongside the wiring harness. Several people on this forum have been quoted hundreds or thousands from tesla to replace the harness (including myself) and are taking matters into their own hands by replacing with after market parts. This is a serious safety issue since the cameras control all self driving functionality. I’m shocked that it’s not already been addressed through a recall! The first time my system had gone out while on Autopilot, the car flashed and sirened and asked that I take over. Since then all my driver assistance features including my rear camera are no longer functional. Please see this forum where several others are experiencing the same issue on their 2018 Model 3s [XXX] Attached are error messages from my car and screenshots from the forum above where people have described the DIY fix and the costs quoted by Tesla. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My Tesla has been displayed a warning error message "Front passenger restraint system fault". This is a safety issue, I searched online and it looks like this is a common problem for the 2017-2019 Tesla Model 3. Many of the owners were fortunate if the issue happened before the expiration of the warranty which Tesla fixed it for free. However, this issue happened after warranty expired. I took the car to service center, they estimated the fix would cost over $3200 (see attached). Tesla claimed that the fraudulent module cannot be replaced as it's no longer support the older version of the airbag system. To fix the problem, it will have to replace the airbag, seat cushion and harness system. This is clearly a defect with the original equipment where manufacture does not support or provide replace with original parts.

If both brake and throttle pedals are depressed simultaneously for a fraction of a second the software does two things: 1) raises a warning to that effect on the computer display and, 2) greatly reduces motor output, limiting acceleration. Item two is the safety concern. Removing the foot from the left pedal does not immediately remove the power restriction. There is a few second delay for that to take place. As a result I find myself expecting to be able to merge rapidly or complete a turn, or cross in front of oncoming traffic but am left in a precarious position in traffic unable to move as expected to avoid a potential collision. This is a behavior that I have not experienced with a conventional engine powered vehicle. In addition when this two-foot power-down mode is waiting to clear, and I am sitting stationary on a steep up incline, the vehicle can slip backwards downhill. The only solution to this issue may be to push the park button on the right control stalk to stop this rolling.

I randomly received an alert indicating “Front passenger safety restraint system fault” on my Tesla’s display. When I look this up, it indicates that the airbag may not deploy correctly in the event of an accident due to a seat sensor malfunction. When I contacted the service center, they quoted me at $1500 to repair this critical safety issue (involves replacing the seat sensor and reconfiguring airbags so that they will properly deploy). I believe this should be a recall and not something customers have to pay out of pocket to drive their car safely.

The contact owns a 2018 Tesla Model 3. The contact stated while driving at an undisclosed speed, the seat belt warning light illuminated. The contact stated that the seat belt was inoperable, and the front seat restraint system failure message was displayed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 99,508.

Vehicle started to display error message of "front left safety restraint system fault" intermittently, then would come on after the vehicle runs for about 5 minute and stay on. According to online forums, this is a common issue with Tesla Model 3, primarily related to the frequent movements of the seat (use of easy entry function). There appears to be electrical wires / sensors that can be damaged or pinched from moving the seat. There is no other issues aside from the safety alert. Tesla quoted more than $700, mostly in labor, to evaluate root cause of the issues. This can be a potential safety issue (not sure how this affects seat belt and/or airbag deployment), and it is not due to negligence or misuse of the vehicle; rather, this appears to be related to the design and quality of vehicle and should be covered by Tesla as a recall to fix the issue.

During the first 5 years of ownership and while under warranty I experienced many creaks in the suspension that did not sound normal. I took it to the Tesla service center many times but was often unable to reproduce the sound when needed and told there was nothing they could do. When a technician did finally hear the sound, Tesla resealed the ball joints at no cost. This was a short-term fix and the problem persisted. After doing some research on my own I have found that this is a known defect in my car model along with the control arms often failing which can cause loss of control of the car. I am now over a year past my warranty and the control arm did in fact fail at 46,000 miles. I experienced a loud creak/rubbing sound when driving over any uneven surface. This happened overnight and was not due to any incident. When I brought the car for repairs and inquired about all of this I was told that this is normal wear and tear and that because it is such a heavy car it is not an unusual repair. I pressed the technician sharing the information I had researched and he said that he would not charge me for the labor. Because this is a known defect and I have read about many owners having to replace the control arms multiple times (often at very low mileage), I continued to argue for no cost to me which was finally granted. That being said, Tesla definitely knows it has a defective product and is doing everything it can to make owners responsible for any cost.

My 2018 Tesla Model 3 is experiencing an intermittent "Front Left Safety Restraint System Fault". This error message, appearing on the main display, suggests an issue with the driver-side airbag, seatbelt pretensioner, or related components. The fault seems unrelated to seat occupancy or weight, as it occurs both with and without a passenger. While the error message eventually disappears after restarting the vehicle, its recurring nature is concerning and raises safety concerns about the airbag deploying unnecessarily or failing to deploy in an actual collision. This problem appears similar to those reported by other Tesla Model 3 owners, suggesting a potential systemic defect in the safety restraint system that warrants further investigation by the NHTSA. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Car reports RCM a056 error related to Occupant Control sensors. This is apparently a common problem for this year and model (related car forums and social media report > 100 such incidents that I can find), but is not covered ($1700 repair). This should be a safety recall.

Seat occupancy system failure received. June 27, 2022 Mobile service inspected for wiring damage, as common cause. recommended appt at service center. Sep 2, 2022, could not fix issue, had to replace entire passenger seat. July 23, 2024 took car to service center for seat occupancy system failure received. Tesla stated I needed to pay for lumbar seat occupancy system sensor as it was failing. This was the same part (seat that was replaced in Sep of 2022). This part was 22 months old. Parts and labor for this part was $955. In addition, they stated this new part is not compatible with the existing seat occupancy system sensor in the seat portion of the seat and also not compatible with the passenger air bag. These parts including labor were an additional $1,500. These parts were not defective. Tesla has developed a new part of the safety system which is not backward compatible with other parts of the safety airbag system. This is improper practice and the cost for upgrading their defective manufacturing practices of safety systems should not be passed on to the customer.