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 |
|---|---|---|---|---|
| Jul 2023 | SERVICE BRAKES | My car is braking hard while I'm on the highway. It's happened on this trip 7 times already. In one of braking, My wife almost got rear ended | Crash: No Fire: No | Unknown |
| Jul 2023 | ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE,LANE DEPARTURE | Electrical system rebooted in the middle of driving: screen went off couldn't signal i swayed to the side and waited till the screen came back on after 3 minutes. | Crash: No Fire: No | Unknown |
| Jul 2023 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE | Constant phantom breaking | Crash: No Fire: No | Unknown |
| Jul 2023 | UNKNOWN OR OTHER | There is a design defect in the Tesla Model 3 which causes moisture to accumulate in the air filters. The filters then sit wet and develop mold and mildew. The first replacement was needed within the first 2 months of vehicle ownership. When the heat / air is turned into the on position, this fowl air is distributed to passengers in an enclosed environment and it becomes a health hazard, especially to those with preexisting respiratory issues. This is an ongoing problem with the soiled air filters requiring constant replacement. A Tesla mobile service agent confirmed that Tesla engineering team is aware of the issue, but hasn't come up with a permanent solution. The service agent stated they are spending tens of thousands of dollars in replacements filters and that a majority of his service calls are to replace the mildewed filters. The problem is Tesla continues to charge people to replace the filter with no solution for fixing the problem. | Crash: No Fire: No | Unknown |
| Jul 2023 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | When vehicle is in cruise control or autopilot the car will suddenly brake without warning. It will do this numerous times and could cause an accident if a vehicle is following close behind. | Crash: No Fire: No | Unknown |
| Jul 2023 | FORWARD COLLISION AVOIDANCE | Multiple phantom breaking events while driving at highway speed. Luckily there were no cars behind us, otherwise there could have been a collision. Caused driver and passenger whiplash and items in car to be forcibly displaced. There were no advance warning. Tried to report to manufacturer but they seem to be closed for the holiday, will try again to report after holiday. | Crash: No Fire: No | Unknown |
| Jun 2023 | FORWARD COLLISION AVOIDANCE | Car “Phantom brakes” constantly when going over a hill when it does not have vision. The braking is aggressive at freeway speeds and poses a risk for rear end collisions or road rage incidents if people think they are being brake checked. | Crash: No Fire: No | Unknown |
| Jun 2023 | VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | 1:Brake fail when trying to stop the car after the accident. The car is available for inspection at Arrow towing service Oklahoma City. 2: After the car accident the car keep going can't stop got Tee boned and my passenger broke his legs and ankles, elbow. 3: No, the problem has not be discussed with the dealer or manufacturer yet. 4: No one, including police, insurance have been inspect it. 5: No warning lamp or any kind of warning. | Crash: Yes Fire: No Injuries: 2 Towed Medical attention | Unknown |
| Jun 2023 | VEHICLE SPEED CONTROL,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | When driving the Tesla model 3 in cruise control, It will without warning apply the brakes. I have to then accelerate and then take it out of cruise control. The issue has happened about a dozen times and only happens while in cruise control. It happened most recently today but has happened in previous days. | Crash: No Fire: No | Unknown |
| Jun 2023 | SEAT BELTS | When trying to seat belt on, under normal conditions, seat belt fails to engage. The belt is stuck in full locked mode. Issue happens intermittently. Failure of seat belt forces no occupancy of front passenger seat, as the only alternative would be to not wear a belt. This raises the following concern: 1. Will the belt fail to work properly in case of a crash event? 2. Will the belt disengage when normal driving. TESLA did NOT replace the belt under warranty and out of concern for my passengers, I replaced it under my own cost | Crash: No Fire: No | Unknown |
| Jun 2023 | VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE | The incident first happend (and has been happening ever since) on I-8, I-10, I-20 east bound 2 days ago. Driving on EB I-8 with speed limits 75MPH, engaged Tesla's well touted onboard Enhanced Auto Pilot (EAP) with Auto Steer control. There was no one ahead of us for over a mile. The weather was clear and sunny, time of incident around noon. Max speed was set to 75 on EAP. All of a sudden, we felt a jerky motion, and realized the EAP has activated brakes, dropping speed from set 75 to about 50mph. No visual or audible alarms, the EAP did not disengage. The driver took over to speed up to avoid being rear ended by vehicles coming behind us. It happened several times more during our trip and then we decided to manually drive. We have video documentation available. | Crash: No Fire: No | Unknown |
| May 2023 | POWER TRAIN,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | On May 22, 2023 driving south on I-580 through Reno with the Tesla adaptive cruise control, there's a 55mph construction zone. As a result, I use the right scroll wheel to adjust the speed from 65 to 55mph. The scroll wheel didn't work. As a result, I turned off the cruise control with the right steering wheel stalk. At the same time, I noticed the vehicle speed indicator on the upper left of the CRT display was malfunctioning; both failing to respond to changes in the car's speed, and then indicating erroneous speeds (at one point indicating 34mph when I was going around 60mph. These issues continued. I took the exit on Double R Blvd to turn right. As I got into the right lane on the freeway to exit I attempted to turn off the cruise control and it didn't work. Approaching the exit, I then applied the brake. The regenerative braking function did not apply. As a result, it felt like the cruise control didn't turn off. However, I braked to a stop at the intersection in the right lane with no issues. When the traffic cleared, I attempted to turn right and proceed east on Double R Blvd. The car didn't move. Using the right stalk, I tried shifting into drive, reverse, and back. All this time, the drive (D) and reverse (R) indications on the CRT did not show. I let off the brake and the car inched forward. I turned right immediately into the Maverick gas station entrance to get off RR. The CRT display now showed the back-up camera displays (a normal indication of the car being in reverse). I cautiously let off the brake and applied the accelerator pedal to see if I backed up, but the car was in drive and proceeded normally. I continued to drive and the CRT screen went completely black. I soon realized the car's computer was rebooting with the faint Tesla logo on the black screen. Within a mile or so, everything came back on the screen and worked normally. I then reached my destination. When I returned to the car, it was as if nothing had happened. | Crash: No Fire: No | Unknown |
| May 2023 | ELECTRICAL SYSTEM,VISIBILITY/WIPER | This same event has happened to me approximately 3-4 times since owning the vehicle. It occurs randomly without warning. The vehicle screen will randomly and suddenly freeze up and render itself inoperable. Eventually, the screen will reset itself or I will have to manually force a reset. After about 5-10 minutes, the screen will reset and the problem goes away. During the 5-10 minutes of the screen not operating, I cannot see or change any of the vehicles controls; loss of HVAC control, cannot turn on windshield wipers, cannot see vehicle speed, don't know if turn signals are on/off (also lose audible sounds when turn signals are on) are the major safety related losses; you essentially lose all control over the vehicle settings/controls. Vehicle continues to drive as normal, and all functions are restored after reset is complete. | Crash: No Fire: No | Unknown |
| May 2023 | UNKNOWN OR OTHER | I bought my Tesla model 3 in October 2021. I no longer can view my backup camera or side camera when signaling and reversing. gps doesn’t work. Warning collision doesn’t detect. No warning lamps or messages. I schedule a service and they might think it’s a failed mcu. It’s no longer under warranty since I put 79000 miles on it. Car isn’t even two years old and if mcu failed. I think it should be replace for free if it less than two years, miles shouldn’t count. | Crash: No Fire: No | Unknown |
| May 2023 | ELECTRICAL SYSTEM,SERVICE BRAKES | The contact owns a 2021 Tesla Model 3. The contact stated while driving approximately 25 MPH as he was exiting a highway and slowing for a traffic signal at the bottom of the off-ramp his brakes failed to engage. The contact stated the brake pedal was stiff and he had attempted to use full leg force to depress the brake pedal. The contact's vehicle ran the traffic signal and the contact stated he hit the right front end of a vehicle that was across traffic from him. The contact stated no warning light was illuminated. The contact stated that the crash stopped his vehicle and the other vehicle. The contact said that the air bags had been deployed and that the left front end of his vehicle was crushed into the left wheel well. The contact stated that the other vehicle received only light damage to the right end of the bumper due to it being higher than his vehicle. The contact stated that the police were on the scene and filed a report. The other vehicle was able to drive away, and the contact's vehicle was towed to an impound lot. The contact stated that his insurance provider declared the contact's vehicle a total loss. The vehicle had not been diagnosed or repaired. The contact stated that prior to the crash he had attempted to engage his cruise control while on the highway and it would not work. The contact stated that when he engaged the cruise control the windshield wipers would activate and he stopped attempting to use cruise control. The manufacturer had been informed of the failure. The failure mileage was approximately 18,000. | Crash: Yes Fire: No Towed | 18,000 |
| May 2023 | FORWARD COLLISION AVOIDANCE | Was using cruise control on a road trip, traveling through Arizona and the car jolted to stop three different times without advance notice or anything in the road. It was like slamming on the brakes. I was afraid to use it anymore, so now it’s like having a vehicle without cruise control feature. There were cars all around. We are fortunate no one hit us. This needs to be addressed. Googled and discovered it is called “phantom braking.” Hoping this serious safety issue will be fixed and no one gets hurt or dies because of it. Thank you | Crash: No Fire: No | Unknown |
| May 2023 | FORWARD COLLISION AVOIDANCE | Using cruise control or auto pilot and then the car randomly brakes. | Crash: No Fire: No | Unknown |
| May 2023 | FORWARD COLLISION AVOIDANCE | The contact owns a 2021 Tesla Model 3. The contact stated that while driving at 70 - 75 MPH with the cruise control activated, the vehicle experienced phantom braking. No warning lights were illuminated. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 31,043. | Crash: No Fire: No | 31,043 |
| May 2023 | FORWARD COLLISION AVOIDANCE | While using the autopilot or cruise control feature The vehicle slams on the brakes without driver intervention. I found this appears to be a common problem called “ Phantom Braking” I opened ticket with the local Tesla facility but they required an accurate time storm of the incident to be able to troubleshoot the issue. This is a major safety issue and I request it be investigated as soon as possible. I read some news reports that Tesla Phantom Braking has caused major accidents and I don’t want to be in one. | Crash: No Fire: No | Unknown |
| Apr 2023 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | While on Autopilot, the car suddenly phantom brakes when there is no risk of any collision ahead. This has happened multiple times on high speed highways. Within 1 hour, this happened 5 times and caused near-collisions with the car following my car. | Crash: No Fire: No | Unknown |
| Apr 2023 | UNKNOWN OR OTHER | I was driving to school which is about an hour away from my home. I was in the carpool lane when all of a sudden I got a notice that the top speed of the vehicle was reduced to 35 MPH second later it said it was in low power mode. The screen starting flashing red and it began to shake and shut down. I had seconds to get into the shoulder of the freeway and the car and the car lost all power. This was an unprovoked incident and I feel that if put me in grave danger. In order for the car to start driving I had to exit and enter it again while on the freeway. I was thankfully able to pull into the shoulder because I was in the carpool lane but had I not been I would have had to do this in full traffic. | Crash: No Fire: No | Unknown |
| Apr 2023 | STRUCTURE,UNKNOWN OR OTHER | Tesla had been sending me messages since last year about the safety recall notice but they have not downloaded the necessary firmware update to remedy the safety issue NHTSA Recall no: 22V-702 | Crash: No Fire: No | Unknown |
| Apr 2023 | FORWARD COLLISION AVOIDANCE | My full self driving computer has crashed for the 3rd time since owning the vehicle which controls all of the cars safety features.. Tesla says they won’t do anything because the car is past the warranty by 9,000 miles.. so I’m basically stuck with a 1980’s Tesla. | Crash: No Fire: No | Unknown |
| Apr 2023 | FORWARD COLLISION AVOIDANCE | During the time we have owned this car, it exhibits random and sudden deceleration events when operating AutoPilot (adaptive cruise control) on highways and freeways. The events are not explainable by presence of any notable present or potential hazard. The risk presented to and by surrounding (following) vehicles is so significant that it renders this function unusable. Saturday, April 1, was the last time this occurred before we decided we could no longer safely use this function, instead going to full manual control of the throttle and brake for all highway driving. | Crash: No Fire: No | Unknown |
| Apr 2023 | SUSPENSION | There is a recent recall for suspension related issues with this model. Recently there is a suspension related knocking sound coming from front drivers side area that seems suspension related. I am unable to schedule appt for inspection/ repairs due to another unrelated scheduled service. Tesla requires scheduling through the Tesla application and does not allow scheduling for service when another appointment is pending. I have no way to contact them directly. They have not responded to my concern through customer service app. | Crash: No Fire: No | Unknown |