Complaint volume
650 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
650 consumer-submitted complaints on record for the 2021 Tesla Model 3, grouped by component category.
650 Total complaints
45 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 45 crash reports, 5 fire reports, 16 injury reports, and 5 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?
45 Crash
5 Fire
16 Injury
5 Fatality
38 Towed
18 Medical attention
What are the most common 2021 Tesla Model 3 complaint categories?
FORWARD COLLISION AVOIDANCE 199
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 57
VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE 53
UNKNOWN OR OTHER 41
VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 33
ELECTRICAL SYSTEM 21
VISIBILITY/WIPER 12
VEHICLE SPEED CONTROL 11
SERVICE BRAKES 10
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 10
650 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | On a trip to Northern California, I used the "traffic-aware cruise control", and there were several episodes of sudden hard braking for NO REASON. With no vehicle ahead for 20 car-lengths, no curves, no vehicles moving into our lane from the side, we had no clue to why this jarring experience occurred. I thought it might have been caused by gentle inclines in the road ahead, but there were plenty of these that did NOT cause this violent slam of the brakes. So, I dismissed that explanation. The final time it occurred, there was no incline, no impediments of any kind. Just a clear, flat lane ahead and no vehicle to the right, plus an unusually wide shoulder to the left. Not even a center divider wall or K-rail. The car is now scheduled to be taken to Tesla on June 29, but having obtained the appointment through the app, I have no way of knowing if I must leave the car overnight, if I can get a loaner, or even if they'll call me when it's done, assuming they can fix it. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | I was driving on the freeway, North on I-5 here in Washington State, approximately 60 to 65 mph, when in autopilot the car phantom braked for no reason. The breaking was very hard, and occurred in the passing lane; this could’ve easily caused an accident but luckily did not. | Crash: No Fire: No | Unknown |
| Jun 2022 | VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | While driving at 70 mph with adaptive cruise control engaged I experienced several instances of "phantom braking." The car braked hard all by itself with no driver input. This happened several times on June 2, 2022 and again on June 6, 2022. | Crash: No Fire: No | Unknown |
| Jun 2022 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE | When I am driving and using the cruise control (Tesla calls this Traffic Aware Cruise Control), the car will randomly brake while I am driving, sometimes very abruptly and hard, even though there is no obstacle, the road is clear, there is no weather, no danger, etc. There is no way to disable this "feature" if I do not like it so that I can use cruise control normally, the only solution is to drive it manually and not use cruise control. If somebody is behind me they almost run into me. I will provide a date below when this occured as requested, but it occurs EVERY SINGLE TIME I DRIVE THE CAR. Need to have an option to just have normal Cruise Control without the "Traffic Aware" portion. This is a REAL issue. I love my Tesla but I absolutely HATE this dangerous "feature" that DOES NOT WORK properly. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | When on Autopilot (Traffic-aware cruise control), the vehicle will brake suddenly and severely when cresting a hill that the cameras in the car cannot see over, if there is no other traffic in front of the car for the Autopilot cameras to reference against. This is most notable and disturbing on inter-city freeways in the western U.S. such as eastern Oregon or Nevada, where the freeways are rolling. This behavior (braking when cresting a hill with no vehicles visible in front of the car) is quite repeatable. The vehicle is a 2021 Tesla Model 3 with "Tesla Vision," i.e. cameras only with no radar. It is not possible to turn off the "traffic aware" element of Tesla's cruise control. If the Tesla interface had a toggle to turn off "traffic aware" so that it had conventional cruise control (i.e. the vehicle will simply hold the chosen speed regardless of surroundings), that would be helpful and in many ways safer. Ideally, though, they would reprogram the Traffic Aware Cruise Control so that it can handle cresting a hill. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | When passing below an overpass the car will rapidly brake from 80-60 MPH or 65-45 MPH without warning. I have to take over and speed up to avoid someone hitting me from behind. I believe the issue happens because the car for a second thinks you are driving on the overpass which has a much slower speed (25-40 MPH). Therefore, it brakes hard to match the speed of the overpass. When it is enough of a distance away, it goes back to the normal highway speed. This issue has happened many times since I bought the car and has not been resolved after many updates. | Crash: No Fire: No | Unknown |
| Jun 2022 | ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | The contact owns a 2021 Tesla Model 3. The contact stated while driving 70 MPH with the cruise control activated, the vehicle applied the brakes independently. The contact stated no warning light was illuminated. The contact stated he experience the failure three times while using the cruise control feature that same day. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 7,000. | Crash: No Fire: No | 7,000 |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | The car will randomly brake on the highway when its in auto drive with no need to brake immediately. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | When applying Cruise Control on the model 3, the Tesla will apply phantom braking in various situations. The car will brake on its own without any human interaction. This has occurred on the highway with no other cars nearby that should cause such braking.. This phantom braking has caused me to not use cruise control at all in my car. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | While driving on highway, I have autopilot on, and out of nowhere the vehicle will engage emergency braking. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES | On at least 4 occasions, I have been driving at freeway speeds of 70mph with cruise control engaged - typically while driving on I-35 between Duluth and Minneapolis in Minnesota - and the vehicle has applied the brakes very hard for no known reason, without human input to the brake pedal. The most recent occurrence was on May 27th, 2022. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | On multiple occasions, my vehicle has experienced the same “phantom braking” problem other Teslas have. This has happened when cruise control (autopilot) was enabled. No cars or obstacles were directly in front of my vehicle and the immediate breaking was unnecessary | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | While driving on the highway, , this car continues to phantom brake at high speeds which is dangerous. Both adaptive cruise control and “autopilot” experience this. It can be an overpass, cloud, or when the car sees it’s shadow. The phantom braking is a serious safety issue and makes me not want to use the feature. Tesla needs to improve this ASAP. | Crash: No Fire: No | Unknown |
| Jun 2022 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE | The autopilot used for automatic cruise control regularly brakes for unexplained reasons when there is no immediate threat. This is not only scary but it could cause an accident if other cars were right behind me. There is one part of highway 470 in Highlands Ranch, CO, where it happens every time, like autopilot is expecting the speed limit to drop so it slows way down for me, but the speed limit hasn’t changed. Other times it just happens randomly. It will happen at least once usually every hour I use autopilot. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | Since purchasing my vehicle a year ago, it had has occasionally engaged the emergency braking system in situations where other cars have not been a threat or directly in front of me. This week, the system engaged when I was driving up an incline on the highway with no vehicles around me. Very disconcerting and DANGEROUS. As a result I deactivated the system. This is a flaw. | Crash: No Fire: No | Unknown |
| Jun 2022 | UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | I was in auto pilot (cruise control). The car was going at 78 mph. The brakes suddenly engaged for no reason. Slowing the car to 60 mph very quickly. It basically felt like I slammed on the brakes. This happened 3 times. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | Car brakes heavily and suddenly for no reason while using cruise control. Seems to be on 2 way roads when semi-truck is passing by in opposite lane. Has happened multiple times on different days under different conditions. Concerned about being rear-ended. I have not had this inspected and no crash has occurred. I stopped using cruise control on this vehicle due to safety concerns. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | My car has on several occasions while using cruise control feature engaged, braked unexpectedly at highway speeds when nothing was in front of the car. My Tesla does not have Full Self Driving capabilities, it has also done this emergency braking with Autopilot engaged. It's happened so many times while the Autopilot is engaged, that I never use Autopilot anymore. I have twice nearly been rear ended, (with only cruise control engaged) by a car following me when this auto-braking happened in highway traffic, forcing me to have to immediately hit the accelerator pedal in response, to avoid being hit from behind after the brakes auto engaged. | Crash: No Fire: No | Unknown |
| Jun 2022 | ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | Vehicle will engage breaks when there is no obstacle or while on a straight road when placed in cruise control. | Crash: No Fire: No | Unknown |
| Jun 2022 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | I’ve experienced the “phantom braking” most recently on may 29th, on highway. No cars around or anything that should have trigged it. I was in autosteer mode when it happened both times. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | Driving at night, using adaptive cruise control, about 70 MPH, no other vehicles near by, multi lane highway, when pavement changed from black tarmac to lighter concrete surface, the Tesla braked hard automatically. I accelerated and disengaged the cruise control. No loss of control. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | This happens to me all the time. Especially on interstates such as I-4 in Florida. The car will suddenly brake with no warning, slowing down dramatically. For example, if driving at 80 mph the car will suddenly for no reason slam on the brakes to 50mph, almost having other cars behind me rear end me. This issue has never been dealt with by Tesla and Tesla claims it's a normal problem to have. I've never had any other car with adaptive cruise control do this. | Crash: No Fire: No | Unknown |
| Jun 2022 | ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | While driving with cruise and steering control, car will emergency brake like something is in front of the car. Many call it "phantom" braking. One time on a 2 lane highway the car braked hard for no reason, it happened on the way to Vegas and a large group of bikers were behind us. Very scary at highway speeds. We let the bikers pass. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | While using cruise control on the highway, I was rounding a slight bend in the road and the automatic braking system actuated, immediately slamming on the brakes and scrubbing off significant speed. Luckily I was close to the accelerator pedal and was able to quickly react by applying throttle, but had there been another vehicle following closely, there could have been a collision. There were no visible objects in or around the road to cause an emergency braking event. I have not used the cruise control feature since this occurrence, but it had happened twice before with similar circumstances. Reference "phantom braking" phenomenon well documented by many other operators. | Crash: No Fire: No | Unknown |
| Jun 2022 | FORWARD COLLISION AVOIDANCE | When Autopilot is engaged the vehicle will sometimes rapidly slow down unexpectedly. There is no visual or audio warning to accompany the slow down to indicate what the vehicle detected to cause this. It is a rare occurrence but could potentially cause an accident in heavy traffic. | Crash: No Fire: No | Unknown |