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 |
|---|---|---|---|---|
| Nov 2025 | LATCHES/LOCKS/LINKAGES | I am the owner of a 2021 Tesla Model 3 and am filing this complaint due to a significant safety concern: my vehicle does not have manual or mechanical releases for the rear doors; only electronic mechanisms are present. In the event of a total power failure, accident, fire, or submersion, rear seat passengers would be unable to exit the vehicle through the rear doors, as there is no physical lever or alternative escape route directly available inside the rear seats. This design poses a serious risk to occupant safety in emergencies, especially for families with children or passengers unable to access the front seat manual releases or trunk escape features. The lack of a rear mechanical release is inconsistent with standard automotive safety practices and could lead to injury or loss of life if electronic door access is disabled. It’s important to note that newer Tesla models now include manual rear door release mechanisms, demonstrating that Tesla recognizes the safety benefit and necessity of this feature. Owners of earlier models, like mine, are left without this critical safety upgrade, and I believe this should be addressed for all affected vehicles. I strongly urge NHTSA to investigate this issue and consider whether a recall or mandatory modification is warranted for the affected Tesla Model 3 vehicles. Please contact me if any additional details are required. | Crash: No Fire: No | Unknown |
| Nov 2025 | UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE,LANE DEPARTURE | Tesla full self driving software malfunctioned and turned into oncoming traffic lanes instead of crossing over to the correct opposite side of the roadway. This occurred after getting off a on ramp in Ukiah, California around 2am Nov 15, 2025. This could have put others in serious danger if there were cars coming in the oncoming lanes heading in the different direction. The problem has not been reproduced by a dealer or other entity. Yet This has happened to other tesla drivers as well using FSD as you are probably already aware. No inspection and it was sudden and unexpected. | Crash: No Fire: No | Unknown |
| Nov 2025 | ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM | I have been very cautious on charging my Tesla Model 3 and have followed all of the manufacturer's recommendations. The HV battery recently failed at 105,050 miles. South Korea has noted a battery reliability issue for this year car and model, so I am reporting this to you so if a recall is needed, you can track this. I believe my battery is a Panasonic NCA. | Crash: No Fire: No | Unknown |
| Nov 2025 | STRUCTURE | We were not able to open the door after the 12 V battery died; fortunately we were not inside the car else this could have been catastrophic. There was no way for anyone trapped inside to come out. | Crash: No Fire: No | Unknown |
| Oct 2025 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | I drove into my neighbor’s driveway to drop her off. As I slowed down and applied the brakes to stop, the car failed to respond. It continued forward, running over the flower and plant pots at the edge of the driveway, crossing the backyard, and finally colliding with the trees and bushes at the rear of the property. All airbags deployed, and the vehicle was damaged beyond repair. | Crash: No Fire: Yes Medical attention | Unknown |
| Oct 2025 | STRUCTURE | This car is dangerous to rear passengers there's no mechanical door release cable so if there's a loss of electrical power and the car is involved in an accident the rear people or children are trapped | Crash: No Fire: No | Unknown |
| Sep 2025 | STEERING | Steering wheel is peeling/degrading and causing difficulties with steering and control. | Crash: No Fire: No | Unknown |
| Sep 2025 | STRUCTURE | The passenger door handle is inoperable . The door handle is stucked open. | Crash: No Fire: No | Unknown |
| Sep 2025 | STEERING,LANE DEPARTURE | Steering rack failure. Steering assist, auto pilot and lane departure prevention failed and would not work properly so this is a safety issue. Manual steering worked fine but the safety and auto pilot functions would no longer function. Paid for Tesla service over $3,000 to replace steering rack and now is working properly. Reporting this as this may happen to others and probably should be a proactive recall on the steering racks so others don't lose these safety features. Maybe related to computer as it failed, worked again and then failed again and was then repaired by Tesla service center. | Crash: No Fire: No | Unknown |
| Sep 2025 | ELECTRICAL SYSTEM,SEATS,UNKNOWN OR OTHER | Resistive occupancy sensor consistently failing causing: -Bluetooth to not automatically connect anytime the vehicle is entered - vehicle puts itself in park to prevent rollback if seatbelt is not applied - car does not recognize when driver is in seat These are serious safety concerns as it could cause a domino effect in safety features if not applied when needed. | Crash: No Fire: No | Unknown |
| Sep 2025 | SEAT BELTS | Driver belt latch failed while driving | Crash: No Fire: No | Unknown |
| Aug 2025 | STEERING,WHEELS | While driving a Tesla 2021 model 3 tonight at 8:45 P.M. turning left the wheels locked to the left and would not turn straight causing me to hit a concrete divider. After hitting concrete divider steering released to normal driving but driver side car front rim tire was damaged and wheel alignment misdirected. | Crash: No Fire: No | Unknown |
| Aug 2025 | FORWARD COLLISION AVOIDANCE,LANE DEPARTURE | Component/System involved: Advanced Driver Assistance Systems — FSD (Supervised)/Autosteer (Lane Keeping Assistance) and Adaptive Cruise Control. Possible failure to warn/stop (FCW/AEB). Vehicle and data are available for inspection upon request. I preserved dashcam files and requested Tesla to preserve engineering logs and EDR. What happened & safety risk: On [XXX] at ~[XXX] PDT on [XXX] near East Palo Alto, CA, with FSD (Supervised) engaged, the system appeared to misinterpret an exit ramp/gore area as a continuing lane at a highway fork and maintained ~60 mph (posted ~70). As soon as I saw the trajectory was unsafe, I braked and began manual steering takeover, but the vehicle contacted a roadside sign near the gore/shoulder before I could complete the maneuver. I then stopped safely. No other vehicles were struck. Airbags did not deploy. This posed a serious collision risk to me, my passenger, and nearby traffic. Reproduction/confirmation: NOT REPRODUCED. I have not attempted to reproduce the event. UNKNOWN whether the issue has been reproduced by Tesla or a service center yet. Inspection to date: Police responded (report pending). My insurer has opened a claim. I opened a Tesla Service request asking to PRESERVE Autopilot/FSD engineering logs for the incident window and to coordinate EDR extraction; engineering review pending. Vehicle remains drivable. Warnings or symptoms before failure: No audible/visual forward-collision warning was perceived by me and I did not observe automatic emergency braking. No prior warning lamps/messages were noticed before the departure toward the gore. UNKNOWN whether any internal/partial interventions were recorded in logs. Evidence available: Four-camera Tesla dashcam footage saved and backed up (see [XXX] ); precise time window ~[XXX] PDT on [XXX]. I can provide files and cooperate with data retrieval/inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: Yes Fire: No | Unknown |
| Aug 2025 | TIRES | On [XXX], I was given a Tesla Model 3 loaner vehicle (VIN: [XXX] ) from the Knoxville, TN Tesla Service Center while my own Tesla was in for warranty repair. At pickup, I told the service advisor that the passenger-side tires looked unsafe. No inspection or warning was provided. After driving only 7.7 miles at normal speed on smooth roads, both passenger-side tires failed simultaneously. There were no potholes, curbs, or debris impacts. Tesla’s own service invoice states the cause was “not specified” and only speculates possible curb or debris damage without proof. Two tires failing on the same side so soon after hand-off suggests a pre-existing structural defect or safety issue. This incident posed a serious safety risk to myself and other motorists and could have caused loss of control at highway speeds. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| Aug 2025 | BACK OVER PREVENTION | The 2017-2020 Tesla model 3's have a recall for the rear camera wiring harness. The recall ends with cars built until September of 2020. My car was built in December of 2020 and my 2021 tesla model 3 was just repaired and had the exact same issue. The coaxial cable wore out and my rear camera didn't work. Because my car wasn't included in this recall, i had to pay for it. This recall needs to be expanded to other year models of the tesla model 3. The problem isn't isolated to vehicles prior to 2020. | Crash: No Fire: No | Unknown |
| Jul 2025 | STEERING,POWER TRAIN,SERVICE BRAKES | What component or system failed or malfunctioned, and is it available for inspection upon request? - ABS, Automatic Emergency Braking, Traction Control, Stability Control failed while braking using the regenerative braking. How was your safety or the safety of others put at risk? - While coming to a stop using the regenerative braking, the regenerative braking immedietely ceased to work, and the driver had to immediately apply the hydraulic brakes to avoid a rear end collision Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - No, they appeared while braking. This issue is not new to this vehicle and has happened in the past, however the errors cleared themselves out. | Crash: No Fire: No | Unknown |
| Jul 2025 | UNKNOWN OR OTHER,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | On [Wednesday, 07/09/2025], I was driving my Tesla Model 3 in rainy conditions when the vehicle suddenly swerved and crashed into a sidewall. The road was wet but not flooded, and I was traveling at a moderate speed. As I lifted my foot off the accelerator to slow down, the car's regenerative braking system engaged abruptly, which I believe shifted weight forward and caused the rear tires to lose traction. This led to hydroplaning and complete loss of control. There were no warning lights or alerts prior to the incident. The road surface did not have visible hazards or standing water that would typically explain a spinout. The tires were moderately worn but within usable limits. As a result of the crash, the car was declared a total loss. The insurance company now has possession of the vehicle. Thankfully, no one was injured, but the crash was severe. After the incident, I researched similar cases and found multiple reports and articles (e.g., AutoEvolution) linking Tesla’s regenerative braking to increased risk of hydroplaning or loss of control in wet or slippery conditions. The regen system eliminates coasting and applies braking force immediately upon throttle lift-off, which appears to be a safety risk in reduced-traction environments like rain, snow, or ice. I believe this issue deserves investigation, as it may affect the safety of other Tesla drivers in similar weather conditions. | Crash: Yes Fire: No Injuries: 1 Towed Medical attention | Unknown |
| Jul 2025 | AIR BAGS,SEAT BELTS | Correction: Retrofit SBR in OCS Equipped Front Passenger Seat - Remove and Replace. FIRST ROW - SEAT BELT REMINDER SENSOR BOX CLIP (1130363-00-B), FIRST ROW OCCUPANCY SENSOR(1099592-00-F) FIRST ROW SEAT HARNESS ASSEMBLY - RIGHT HAND (1489060- 03-G). This car has 69k miles and I'm informed this is out of warranty and has a cost of $696.75 to repair on a car that is less than 4 years old. Saying the sensor failed is not accurate as the error does not exist unless there is someone in the passenger seat which tells me the sensor is working somewhat. Tesla will not inform me of what will and will not work in the event of a collision but that these items need to be replaced to ensure safety of occupant's. I am skeptical since safety is your number one concern and should be the concern of every auto manufacturer. Unless damage by the owner specifically, how and why is this not covered for the life of the vehicle? | Crash: No Fire: No | Unknown |
| Jul 2025 | LATCHES/LOCKS/LINKAGES | The frunk keeps opening while driving or parked without me pressing the control to open the frunk | Crash: No Fire: No | Unknown |
| Jul 2025 | FORWARD COLLISION AVOIDANCE | While using traffic aware cruise control or autosteer, the car occasionally detects a nonexistent person in the center of the lane I’m driving in, the proceeds to slam on the brakes when no hazard exists. It seems that tire markings in the road and certain lighting conditions cause the car to think there is a person in the road. Additionally, when driving on a highway with rolling hills, the car detects a forward collision alert and hits the brakes and disengages the autosteer. Both of these could cause a rear and collision at highway speeds. The dealer has claimed that the cause is functionally normally and I already tried to get it serviced but the car continues to have these issues. I do have video evidence of the car slamming on the brakes and detecting a forward collision. | Crash: No Fire: No | Unknown |
| Jul 2025 | VISIBILITY/WIPER | The interior rearview mirror exhibits tiny bubbles around the edges and streaking or cloudiness within the layered structure of the auto-dimming (electrochromic) mirror. The problem has occurred in multiple potential replacement mirrors, indicating a design or manufacturing defect. The issue first appeared as small bubbles around the outer edge, then progressed to visible streaking and cloudiness within the mirror surface. These symptoms impair rear visibility, particularly at night or in bright light conditions, when glare and distortion are most severe. This creates a safety hazard by: 1) Obstructing the driver’s clear view of approaching vehicles. 2.) Reducing reaction time Increasing the risk of rear-end collisions or unsafe lane changes. 3.) It compromises overall driver situational awareness, especially in high-speed or congested traffic environments. The defect is not isolated to a single part. Defective mirrors have been retained for documentation and are available for inspection. Mirror replaced with same part number under limited warranty, but the replacement option showed same failure, suggesting a broader defect not yet addressed by a permanent fix. Additional replacement parts offered show similar defects. | Crash: No Fire: No | Unknown |
| Jul 2025 | BACK OVER PREVENTION | While backing up, the rearview camera feed occasionally displays a noticeable delay, which prevents objects and pedestrians from appearing in real time. This lag creates a significant safety risk, as the visual information on the screen does not accurately reflect the vehicle's current surroundings. Additionally, the display on the left side (vehicle proximity visualization) does not match the camera view or actual situation, further contributing to confusion and potential danger when reversing. This issue persists despite software updates and appears to be a systemic flaw that compromises driver awareness and vehicle safety. Cross-traffic alert appears impacted. | Crash: No Fire: No | Unknown |
| Jul 2025 | VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,SERVICE BRAKES | Incident Details: • Date of Incident: [XXX] • Time: [XXX] • Location: San antonio, Tx • Weather/Road Conditions: Clear, dry highway; 90 F • Speed: 60 mph; • Description: while driving my 2021 Tesla Model 3 with Full Self-Driving (FSD) software version 12.6.4 engaged, the vehicle unexpectedly changed lanes without my input, likely due to the Auto Lane Change feature. Immediately after, it braked hard for and unrecognized slowing traffic ahead. This sudden jolt caused immediate pain in my upper back, neck, and chest, which persists. I believe FSD misjudged traffic patterns or road conditions, a known issue with v12.6.4 based on online reports. The incident occurred in heavy traffic and no crash occurred, but the abrupt braking posed a safety risk and caused injury. I’m unable to see a doctor today but plan to soon for a diagnosis. This is a serious safety concern, as FSD’s erratic behavior could cause collisions or further injuries. Injuries: Yes, back, neck, and chest pain caused by sudden braking. No medical diagnosis yet; planning to see a doctor soon. Crash: No Fire: No Police Report: No accident Attachments: i have video INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| Jun 2025 | AIR BAGS,SEAT BELTS,SEATS | RCM2_a636 Front passenger safety restraint system fault Service is required Passenger airbag turns OFF when a passenger is sitting in it. Error is intermittent and while occasionally turn off and on. Seems like a lawsuit waiting to happen should someone get in a car accident. | Crash: No Fire: No | Unknown |
| Jun 2025 | SERVICE BRAKES | On [XXX] at approximately [XXX] on [XXX] in Oakland, CA, I was intending to park the car on the street at the curb. As I started to pull to the side of the road to park, the brake suddenly fully engaged, bringing the car to an immediate complete stop. My foot was not on the brake at the time. There were no obstructions of any kind in the road or in front of the vehicle. No warning sounds, messages or lights were activated before, during or after the incident. The incident caused no injuries, because of the low speed at the time, just a sudden jerk forward. However, if the event had occurred at a higher speed, some kind of injury would have been likely. I am also reporting the incident directly to Tesla. There has been no testing or inspection of the vehicle. The vehicle will be made available for inspection or testing if requested. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |