2021 TESLA MODEL 3 Complaints

While traveling over 230 miles from home on a road trip, my 2021 Tesla Model 3 suffered a complete and catastrophic failure. While in North Carolina, the vehicle became entirely unresponsive—doors would not unlock, windows couldn’t be operated, and I was completely unable to access the charging port, trunk, or frunk. The vehicle was effectively bricked without warning. This wasn’t a minor inconvenience—it was a serious safety issue. I was stranded out of state from Saturday to Tuesday, completely dependent on others for transportation while waiting for the vehicle to be towed 58 miles to a service center. I was eventually informed of the cause, auxiliary battery failure, but the fact remains: this happened without warning, in the middle of a long-distance trip, and could have left me in an extremely dangerous or isolated situation. Tesla's systems failed without notice; an apparent design flaw left me with no way to access or secure the vehicle. The inability to open the doors or charge the car poses obvious and unacceptable safety risks. The windows were secured with plastic to prevent rain from coming in. This incident is deeply concerning and should be taken seriously. I am urging NHTSA to investigate this issue and hold Tesla accountable to ensure this does not happen to other drivers under even more hazardous circumstances.

The contact owns a 2021 Tesla Model 3. The contact stated while his wife was driving at approximately 29 MPH, the vehicle independently accelerated and the front of the vehicle crashed into a tree, where it came to a stop. No warning lights were illuminated. The front driver's side air bag was deployed. A police report was filed. Medical attention was sought as a precaution; however, there were no injuries sustained. The vehicle remained at the residence. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 80,340.

Vehicle Info: Make: Tesla Model: Model 3 Year: 2021 Incident Date: April 7, 2025 Mileage: 49,000 miles Component: Electrical System / Software / Powertrain While driving on a public road, my Tesla Model 3 experienced a total system lag and shut down unexpectedly. The screen and vehicle controls froze, and the vehicle became unresponsive, leaving me stranded in the middle of the road. Tesla service later stated that the car computer had “slow FPS” (frames per second), which they claim caused the issue. They cleared memory, updated firmware, and said no further diagnosis was needed. However, no root cause was provided, and I am concerned that this issue could reoccur. This kind of unexpected shutdown while driving is a serious safety concern. I was lucky to avoid a collision, but if this had happened on a freeway or near traffic, the outcome could have been worse. I am filing this report in hopes that NHTSA will investigate whether this is an isolated issue or part of a broader safety defect related to Tesla's onboard software or power management systems.

Rear window defroster is permanently broken. Tesla made 10 attempts to repair it over the past year+ and it is still not fixed. Under certain weather conditions, there is zero visibility through the rear window.

Needs whole suspensions system fixed and is only 4 years old. Was told by the service center employee that other customers with the same year and model have had the same issue. Suspension has been noticeably affected for the past year (uneven tire wear so I had to get new tires and a bumpier ride), but just took it in today and had it officially diagnosed.

The defrost function on the computer went crazy and cracked the windshield in the morning, covered in snow. - It’s hard to see out of, and Tesla said it’s not covered even though it’s only 6 months old and to just drive it. - No, they want $1600 to look at it. I can’t get them to agree to look at it, but don’t give up. - no the defrost was slow and low, as winter is with no issues. So it snowed a lot in KC, MO. I keep my heat at 60 degrees and the fan on low. I unlocked my car with my phone to get some stuff out, but I started clearing off the back door stairs first to make a path. But only 10 minutes after unlocking it, I heard a loud pop. I thought it was electric, so I unplugged it and got in to leave and immediately was shocked to see and hear the heater on so high I didn’t know it went to that level. It had to have been 100 degrees in the car then before I even sat down… I saw the HUGE CRACK across the windshield from the bottom right passenger side, perfectly in the corner of the glass, going all the way to eye level in front of the driver. Diagonally, corner to corner. There isn’t a scratch or speck on this car. I hand wash it every week when it’s not freezing out. I keep the left scroll wheel programmed to control the fan speed, so I pushed it to lower the leaf blower setting it was on to find out it was still set to 60 and fan speed 2. I had to go up and down a few times to get it to go down to normal. I took a video and photos, and Tesla said repeatedly it’s going to cost $1600, even though I just bought it 6 months ago.

The Tesla model 3 has a manual release lever for each door in the front. The passenger side lever doesn't work, creating a safety issue if the car were to lose power then that door would not be able to be owned in case of an emergency. It was never used before and just doesn't work. I've heard this is a common issue on the 2021 model as it was the first refresh or re design.

I was driving east on [XXX] in Bourne MA using the Tesla adaptive cruise control system called "Autopilot" in very light traffic conditions. The sun was low on in the sky (behind and to the right). The system automatically engaged the brakes while crossing the bridge without obvious reason, decreasing the car speed about 10 MPH in less than a second before I overrode by pressing the accelerator. I believe the car vision system mistook a shadow cast by the vertical girders on the bridge onto the road as an obstacle. The sudden deceleration was a hazard to those behind that had to brake, but there was no collision or loss of control. The manufacturer seems acknowledge and accept that the defect exists, but has not been able to resolve the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My Tesla has full self driving supervised. When I use this feature, since about three updates ago, my Car has started braking for no reason. It hasn’t happened on a freeway, but, but on secondary roads, it will brake and try to come to a stop. It seems to do this, when there is a shadow across the road, or when there is a puddle in or near the road. Sometimes it will brake for no reason at all. I I have come close to being hit from behind. I think this is a dangerous situation that needs to be looked into.

My car experienced a problem with the control arms and based on my research this is a known problem with Tesla Model 3 yet a recall hasn’t been issued