2018 TESLA MODEL 3 Complaints

Mold, mildew and smelly odors are coming through the on-cabin ventilation system. This is the 3rd time since 2020, I had to purchase & replace the two air filters and spray the poorly designed duct & condensation accumulation. I inspected the self-installed air filters and there were no signs of moisture, mildew, mold or stains on the filters, which makes me think the problem was /is from the HVAC condenser or coil area. Tesla had issued a 2019 software update to “run” the ventilation system longer after the vehicle was in “Park” but the software update has NOT solved the mildew and bacteria odors that are vented into the cabin, and subsequently changed the HVAC design in post 2021Tesla models that corrected this problem with many pre-2021 Model 3s. Tesla Service Centers are still charging for the coil spray cleaning and not covering this mold & bacteria-creating HVAC design problem of their earlier year vehicles ca as I had to pay Tesla for a pair of air filters change and now they want me to pay for a separate fee for spraying the condenser coils.

The car's dashboard display shows an alert "Front Passenger Safety Restraint System Issue". This puts the front passenger at risk.

I believe my car should be included in the recall for trunk harness recall. My alert and issue is the rear camera being off due to rear trunk ruining the wiring harness that has affected many cars. This is already a recall but I believe my car missed being involved.

Front suspension creaking noise, took in for service, techs ultimately found the front subframe captive welded nuts that secure the front links had sheared off, requiring a replacement of the subframe and some other suspension components. Nuts, which were initially welded to the subframe during assembly, were loose on both sides. No associated damage or impact, normal use over 7 years of ownership. This is also a common issue, and is already associated with a very limited recall (21V-835) but for whatever reason, this failure is still occurring quite often in the wild - normally with far more extreme consequences than in my case.

The first time the lower Lateral Links on the front right side just broke and luckily it didn't happen on the highway with passengers Right now I hear the same noises again coming from the driver's left side from the lower Lateral Links I am afraid that it will happen again and that’s really scary I drove many cars before and never felt so unsecured I don't understand how such a safety problem is not being addressed. I hear and read that other Tesla owners are also reporting the same problem.

My 2018 Tesla Model 3 began showing a "front passenger safety restraint fault" alert within the last week or so. I scheduled service and then received an estimate of almost $1000. When I corresponded with Tesla through their app, they told me the diagnostic code is: RCM_a056_passengerFrontOCS, indicating failure of the passenger Occupant Classification System (OCS). The OCS controls whether and how the airbag deploys; failure could prevent deployment or cause improper deployment in a crash, creating a serious safety risk. Tesla acknowledges the fault but told me the repair (replacing the OCS and passenger airbag) will not be covered since the car is out of warranty. Tesla has issued service bulletins (SB-19-20-003 R1, SB-23-20-002 R7) for known OCS issues, and many Model 3 owners have reported the same fault. This appears to be a widespread safety defect and should be investigated as a potential recall.

While driving on the 5 freeway, using autopilot, my car suddenly decelerated and came to a complete stop. Fortunately, we were not struck from behind, and I was able to get the car to accelerate again after approximately 10 seconds.

The front passenger side upper control arm is squeaking and causing vehicle to drift to right, vehicle only has like 60k miles and the upper control arms have been replaced by Tesla before

The contact owns a 2018 Tesla Model 3. The contact stated that while driving 60 MPH with the Self Driving feature activated, the vehicle failed to slow down while approaching oncoming traffic. The vehicle accelerated and drove around the traffic. The contact depressed the brake pedal and touched the steering wheel to disable the Self Driving feature, but the vehicle failed to respond. The contact stated that once the vehicle passed through traffic, the brake pedal was depressed again, and the Self Driving feature was deactivated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was 55,866.

Main incident: Time: 2025-08-28 ~12:41 PM PST What happened: After searching for a parking space, the driver was preparing to reverse into the spot, the driver pressed up the stalk to shift the gear into reverse, a sound was heard and something showed up on the screen, the vehicle once again started accelerating and running forward suddenly and sharply (3 mph to 28 mph in 3 secs), driver tried to steer the vehicle away from cars and buildings to minimize danger, the car rushed onto a concrete curb, hit one blue Tesla, then hit the side of a concrete utility pole, and ran over a plant and last crashed into the chain-link french before it finally stops Injuries: * Spine pain for one passenger Damages: ** All tires blown out, tire falls off ** Severe damages throughout the vehicle body * One Tesla parked on the parking lot was severely damaged * The utility pole's base box was scraped and deformed * One plant was knocked down Similar case 3 few mins ago: Time: 2025-08-28 ~12:38 PM PST What happened: The driver entered a oneway parking lot, but found no available spot and was trying to back up, the vehicle suddenly accelerated on its own. The driver performed an emergency brake and stopped the vehicle. At the time the vehicle stopped, it was only about 20 inches away from two cars in front of it Injuries and damages: None What component or system failed or malfunctioned, and is it available for inspection upon request? Malfunctioning of the electronic control or braking system leading to abnormal acceleration Conflicting gear shifting and autopilot engagement design The right stalk is used to both shift gears and engage autopilot features, this design makes it very easy for the system to confuse the two actions Autopilot feature safety issues Autopilot features (whether its FSD or cruise control) should not be allowed to initiate abrupt acceleration to a dangerous speed in a low speed area (for example parking lot) Insurance claim filed, number: 25-647243342