Complaint volume
640 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
2021 Tesla Model 3 Complaints
640 consumer-submitted complaints on record for the 2021 Tesla Model 3, grouped by component category.
640 Total complaints
43 Crash reports
5 Fire reports
16 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are forward collision avoidance, service brakes,forward collision avoidance, vehicle speed control,forward collision avoidance. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 43 crash reports, 5 fire reports, 16 injury reports, and 3 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 42 complaints, with an average reported failure mileage of 18,076 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to forward collision avoidance, service brakes,forward collision avoidance, vehicle speed control,forward collision avoidance?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2021 Tesla Model 3?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2021 Tesla Model 3
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2021 Tesla Model 3 complaints?
43 Crash
5 Fire
16 Injury
3 Fatality
37 Towed
18 Medical attention
What are the most common 2021 Tesla Model 3 complaint categories?
FORWARD COLLISION AVOIDANCE 198
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 57
VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE 53
UNKNOWN OR OTHER 40
VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 32
ELECTRICAL SYSTEM 18
VISIBILITY/WIPER 12
VEHICLE SPEED CONTROL 11
SERVICE BRAKES 10
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 10
640 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| May 2025 | ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL | Attempting to park. Slowly inching forward while turning left. Vehicle accelerated. (Sudden Unintended Acceleration: SUA) Vehicle jumped a curb, bounced off a tree, dropped off the curb before comping to a stop. Internet search shows other similar reports; attributed, by Tesla, as pedal misapplication. This was not "pedal misapplication". I am not looking for anything. But NHTSA should increment occurance counter by 1. Tesla has a problem. Electrical or Mechanical...do not know. They have also lost me as a customer. The car will be sold. I have video...mp4 | Crash: Yes Fire: No Towed | Unknown |
| Apr 2025 | POWER TRAIN,ELECTRICAL SYSTEM | my 21 M3P 27K miles threw BMS_a079 I've never used a supercharger and rarely charge over 80% mostly charging at work on lvl 2 & occasionally at home on lvl 1 vehicle will no longer charge I've tried 2 Button reset and HV disconnect no help. 27k miles seems unreasonable for a battery malfunction on a vehicle that has been cared for meticulously. | Crash: No Fire: No | Unknown |
| Apr 2025 | LATCHES/LOCKS/LINKAGES | 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. | Crash: No Fire: No | Unknown |
| Apr 2025 | POWER TRAIN | 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. | Crash: Yes Fire: No Medical attention | 80,340 |
| Apr 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 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. | Crash: No Fire: No | Unknown |
| Apr 2025 | VISIBILITY | 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. | Crash: No Fire: No | Unknown |
| Mar 2025 | SUSPENSION | 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. | Crash: No Fire: No | Unknown |
| Mar 2025 | VISIBILITY/WIPER | 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. | Crash: No Fire: No | Unknown |
| Jan 2025 | LATCHES/LOCKS/LINKAGES | 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. | Crash: No Fire: No | Unknown |
| Jan 2025 | FORWARD COLLISION AVOIDANCE | 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) | Crash: No Fire: No | Unknown |
| Jan 2025 | UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | 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. | Crash: No Fire: No | Unknown |
| Jan 2025 | UNKNOWN OR OTHER | Tesla is refusing to correct this recall on my vehicle for free | Crash: No Fire: No | Unknown |
| Dec 2024 | SUSPENSION | 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 | Crash: No Fire: No | Unknown |
| Dec 2024 | STEERING,ELECTRICAL SYSTEM,SERVICE BRAKES | UNKNOWN | Crash: Yes Fire: No Injuries: 1 Towed Medical attention | Unknown |
| Dec 2024 | VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | vehicle constantly phantom brakes while driving. i have reported 100+ incidents thru my tesla "report bug" feature. It will read the speed limit sign on the off ramp and slow the vehicle down 20mps abruptly, it will see a car on an onramp and slam the brakes on thinking there is a collision coming. it is every single day using cruise control | Crash: No Fire: No | Unknown |
| Nov 2024 | UNKNOWN OR OTHER | The rear doors in this vehicle have no manual open option in case of a power outage such as a fire or submersion. This is a huge safety risk for back seat passengers, who are more likely than average to be children who could not figure out what to do in the case of an emergency | Crash: No Fire: No | Unknown |
| Nov 2024 | SEAT BELTS | The contact owns a 2021 Tesla Model 3. The contact stated that while a family member was attempting to use the rear middle seat belt, the seat belt failed to extend and was unusable. The vehicle was taken to a Tesla Service Center, where the seat belt was replaced. The vehicle was repaired as an out-of-pocket expense. The manufacturer was notified of the failure. The failure mileage was approximately 65,000. | Crash: No Fire: No | 65,000 |
| Nov 2024 | STRUCTURE | Tesla doors are opened from the inside of the vehicle by pressing a button. In the event of a power failure, the buttons will not open the doors. The front doors have an additional manual release to open the door. However, the rear doors do not. In a power failure mode, rear seat passengers will be unable to open their doors to exit the vehicle. Newer model Teslas contain the manual release for the rear doors. However, I have contacted Tesla and they have no plans to address my vehicle. I consider this a life threatening issue. Tesla should be required to retrofit any of their vehicles that have no way to manually open the rear doors. | Crash: No Fire: No | Unknown |
| Oct 2024 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE,LANE DEPARTURE | My Tesla was operating in Full-Self-Driving Beta when it experienced a sudden uncontrolled accelration event. I was driving on [XXX] at approximatley [XXX] this morning. The road speed limit was 40 mph. The car display was correctly showing that the road speed limit was 40mph. The speed offset in the cars setting was limited to 5 mph max above the speed limit. While the car was driving it suddenly accelerated very hard from approximately 40 mph to over 60mph before I was able to stab the brake pedal and kick the car out of full self driving mode. There were no errors, warnings, or signs that anything was wrong with the car. I have also notified Tesla via the service request function in the Tesla App under the section for "software performance". INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| Oct 2024 | VEHICLE SPEED CONTROL,ELECTRICAL SYSTEM | The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 65 MPH, the braking system erroneously activated, causing the vehicle to abruptly decelerate. The contact stated that the failure was due to a failure with the computer reading the speed limit as 45 MPH instead of 65 MPH. The cause of the failure was not yet determined. The manufacturer and local dealer were not notified of the failure. The failure mileage was 35,000. | Crash: No Fire: No | 35,000 |
| Oct 2024 | STEERING,LANE DEPARTURE | 1. Autosteer/Lane assist failure, yes its available for inspection upon request with Tesla 2. Due to above failure met with a crash which led to severe medical issues 3. The car has been totalled and the car is not functional, waiting on Tesla to inspect and confirm 4. Police has filed a crash report but manufacturer, insurance yet to inspect the vehicle or component 5. Absolutely NO WARNING lamps/messages prior to the failure. | Crash: Yes Fire: No Injuries: 1 Towed Medical attention | Unknown |
| Oct 2024 | ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES | The contact owns a 2021 Tesla Model 3. The contact stated while driving at various speeds, the hood opened unintentionally, the A/C unit and the radio intermittently turned on and off, the infotainment system screen intermittently turned black and randomly turned back on, along with several other failures that occurred. No warning lights was illuminated. The failures occurred on several different occasions. The contact was notified that the VIN was included in NHTSA Campaign Number: 24V554000 (Latches/Locks/Linkages, Electrical System) however, while attempting to update the vehicle software, the vehicle failed to complete the software update. The vehicle was drivable and was taken to the place of residence; the contact attempted to get in contact with Tesla Roadside Assistance however, once the contact reached the "confirm pickup spot" screen, the screen froze and would not confirm the request. The vehicle was not repaired. The contact attempted to notify the manufacturer however, the contact received no response in return. The failure mileage was unknown. | Crash: No Fire: No | Unknown |
| Oct 2024 | STEERING,SUSPENSION,WHEELS | While driving, I started to hear a creaking sound while backing up and turning the wheel left. The sound became worse over the course of a few weeks. The steering also felt a little loose. I reached out to the manufacturer for a service appointment, and could only be scheduled about a month out. After a few weeks, while trying to parallel park, the car felt like a tire was stuck, or had a flat. I stopped the car to look at all of the tires and they looked fine. When I returned home, I tried to recreate the issue with my wife moving the car slowly from the driver seat while I looked at the wheels. As she turned and backed up, the creaking sound was very loud, but the tires looked fine. When she put the car in drive and began to pull back into the driveway, I could see the front passenger tire was turned abnormally far to the left, looked like it was leaning, and it was locked (not rolling). Once we had the car in a safe position, I jacked up the car and looked at the passenger control arm to see a bolt completely missing from the front suspension lateral link. The other bolt was 1/2 of the way out and barely holding on. If this had come apart at highway speeds, I am afraid it could have killed or seriously injured my family. | Crash: No Fire: No | Unknown |
| Sep 2024 | ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES | The contact owns a 2021 Tesla Model3. The contact received notification of NHTSA Campaign Number: 24V554000 (Latches/Locks/Linkages, Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted but saw no recall information related to the VIN. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect. | Crash: No Fire: No | Unknown |
| Sep 2024 | AIR BAGS | Front passenger safety restraint system fault alert popping up every few minutes while driving. It is the most irritating thing and there is no way for me to fix it without spending over $500 dollars. This is seemingly a common problem for this make and model through reddit posts and car forums. I was also told by a employee at the tesla service center that they see this very often. It is shocking that Tesla hasn’t taken responsibility in fixing this, when there is nothing any of us could’ve done to have this happen. I’ve seen people get quoted anywhere from $500-2,000 for this exact problem. It is so beyond distracting while driving. | Crash: No Fire: No | Unknown |