564 of the
7,584 complaints filed about the Tesla Model 3
are about the braking system —
7% of everything owners reported.
The worst model year for it is 2022.
Description of the Safety Defect:My 2018 Tesla Model 3 AWD suffered an abrupt and catastrophic total loss of mechanical braking power while driving. The brake pedal went completely soft, and the vehicle lost hydraulic pressure.An independent mechanic inspected the undercarriage and confirmed that the factory steel hydraulic brake lines completely rusted through and ruptured, leaking all brake fluid from the system. This vehicle has 142,905 miles and has been operated in regions that use winter road salt.Tesla is aware of this severe corrosion defect under Service Bulletin SB-26-33-001, but they have categorized it as a service bulletin rather than a safety recall. A factory brake line rusting through to total fluid failure is an extreme and immediate safety hazard to occupants and the public. Furthermore, the vehicle simultaneously threw a "Front Motor Disconnected" warning. A federal investigation and mandatory recall are urgently required to ensure Tesla replaces these defective lines for all affected owners before a fatal accident occurs.
NHTSA complaint #11756949 — an unverified report by a vehicle owner.
While operating the vehicle at low speed (~35 MPH reducing to a stop) on August 1, 2026, at approximately 10:38 AM under normal road and weather conditions, the vehicle experienced a catastrophic and simultaneous loss of primary braking capability and steering responsiveness. > Detailed Description of Failure: > * Brake Failure: Upon pressing the brake pedal, the vehicle failed to decelerate or stop adequately despite continuous application, nearly causing a collision. > * Steering Loss / Disconnection: Concurrently, while the steering wheel could physically be turned, it offered no directional control—turning the wheel had no effect on the vehicle's path, feeling as if the steering linkage or assist was entirely disconnected or disengaged. > Vehicle Warnings / Diagnostic Codes: > The vehicle's onboard display immediately registered critical active safety and chassis failures, specifically displaying: > * "ABS (anti-lock braking system) disabled - Drive with caution" > * "Automatic Emergency Braking is unavailable - Feature may be restored on next drive" > Dashcam video and system screen captures documenting the exact speed, timestamp, and error messages have been saved and are available upon request. No crash occurred, but the sudden, simultaneous failure of core braking and electronic steering systems presents an extreme safety hazard. >
NHTSA complaint #11754149 — an unverified report by a vehicle owner.
My brake lines have corroded to the point where half a liter of brake fluid has leaked out rendering the vehicle unsafe. Tesla admits that this is a design flaw but says that it does not affect this particular VIN number but the damage is exactly as described: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11753838 — an unverified report by a vehicle owner.
2024 Model 3, under 20k miles; burning smell and brake drag from right rear wheel while driving; parking brake fault alerts UI_a019, EPBR_a176, EPBR_a182; dealer inspection found cracked EPB caliper case housing near the electrical connector; Tesla SB-20-33-002 documents this same crack occurring without external impact.
NHTSA complaint #11750946 — an unverified report by a vehicle owner.
On July 11 at approximately 6:47 a.m., I was operating my Tesla Model 3 on Interstate 65 in Hart County, Kentucky, with Full Self-Driving (FSD) engaged during normal highway travel. Approximately one hour earlier, I had departed a highway rest area after sleeping from the previous day’s travel. Rain developed during the trip, but I observed adequate visibility, apparent roadway traction, and I was not impaired. I was traveling in the far-right lane of a three-lane interstate. The posted speed limit was approximately 70 mph; however, FSD limited the vehicle to approximately 65 mph and displayed warnings indicating that the higher speed was unavailable. While FSD remained engaged, the system initiated a lane change from the far-right lane into the center lane. After entering the center lane, the vehicle began displaying repeated warning messages and FSD disengaged multiple times. I attempted to locate settings related to the warnings on the touchscreen but could not identify an available adjustment. During the third disengagement, I perceived that the vehicle continued braking without releasing while steering resistance increased significantly. The steering wheel then rotated abruptly, and I was unable to regain normal directional control before the vehicle departed its intended travel path and struck a concrete median. The collision caused personal injuries and substantial vehicle damage. I have not been able to reproduce the condition. The incident was investigated by the Kentucky State Police. Based on the sequence of repeated FSD warnings, disengagements, continued braking, and abrupt steering behavior, I believe this event warrants investigation. I request that NHTSA review the vehicle’s Full Self-Driving logs, telemetry, Event Data Recorder (EDR) data, steering and braking commands, diagnostic records, and software history to determine whether a vehicle or software malfunction contributed to the collision. Almost like someone had control, into the wall -KM
NHTSA complaint #11750430 — an unverified report by a vehicle owner.
The forward-facing camera and Autopilot computer system on my 2021 Tesla Model 3 has failed. The dashboard first showed intermittent warnings that "Automatic Emergency Braking is currently unavailable" and "Adaptive headlight features are unavailable." Over several weeks the problem worsened from intermittent to constant, and the vehicle progressively lost its forward road visualization and all active safety features. Using the vehicle's Service Mode diagnostics, the Autopilot computer's Primary (A) processing node reports a "CRITICAL" status. The fault log records repeated alerts including dasMIA (driver-assistance system not responding), aebFault (automatic emergency braking fault), and fisheyeCamInitFault and fisheyeCameraStreamExit (forward camera initialization and stream failures). The cameras themselves are physically clean and unobstructed. Safety risk: the failure disables Automatic Emergency Braking and forward collision avoidance, lane-keeping/driver assistance, and the adaptive auto high-beam headlights. AEB is a critical crash-avoidance system; losing it leaves the vehicle unable to brake automatically for an imminent collision, and the loss of adaptive headlights reduces nighttime visibility. A Tesla service center inspected the vehicle, confirmed the diagnosis, and determined the Autopilot computer — a sealed, solid-state control unit — had failed and required full replacement at approximately $3,400. The vehicle is well under 50,000 miles. This failure appears consistent with the same car-computer power-component shorting failure for which Tesla issued a recall on its newer model-year vehicles. The vehicle and the failed component are available for inspection on request. The vehicle has not been inspected by police or insurance.
NHTSA complaint #11743634 — an unverified report by a vehicle owner.
-I was driving down into an indoor basement level garage very slowly as there is a steep incline. It descends from street level to basement level within a distance of approximately 30 to 35 ft. At the end of the incline is a sharp curve to the right, followed by a sharp left turn to proceed straight. -While on the incline, the car was slowing to a stop. I gently tapped the accelerator to keep it moving. -The car suddenly lunged forward, rapidly accelerating. The acceleration was not consistent with the amount of accelerator input I applied. -I quickly steered right to avoid hitting the wall, then immediately steered left to avoid hitting parked cars and garage columns. -I braked as hard as possible, pumping it. The brake pedal was stiff. The car kept moving forward despite my efforts and did not stop until I crashed into a parked car at the end of the garage. -My son was in the front passenger seat. We both had seatbelts on. Other than whiplash, there were no major injuries. -There were no warnings, messages or any indications that a problem was present prior to the incident. -There was no one in the parked vehicle that was struck and no other people in the garage. -My cell phone automatically alerted emergency services. The police responded, and I reported the incident.
NHTSA complaint #11742761 — an unverified report by a vehicle owner.
The Tesla was hit on the passenger side by a Honda civic that ran a red light traveling more than 25 mph The Tesla spun 180 degrees after impact. No airbags deployed. Immediately after impact the Tesla turned on hazard lights. However the vehicle would not come to a stop after pressing on the brakes. After impact the vehicle was coasting backwards at probably less than 5-6 mph. It would not respond to brake presses. Oddly the vehicle had regen braking enabled which should have brought it to a stop, but it didn’t. The vehicle kept coasting backwards as if it was in neutral for about 20 meters until it hit a curb and stopped. BRAKES WOULD NOT WORK!!!
NHTSA complaint #11734115 — an unverified report by a vehicle owner.
My hard brake lines were corroded and had to be replaced on a 7 year old model 3 with 70k miles on it. The cost was over $4000 as battery has to come out and it's very labor intensive. Tesla offered no help with paying for this. They tried to say the car probably was in a very corrosive environment before I bought the car (I purchased it about a year ago). However, I've seen little to no corrosion anywhere on the car. I've decided to report this issue after talking with several lifelong mechanics who have said they have never heard of hard brake lines failing on a car with age and mileage that mine has. Also after searching owner groups I've heard from other owners that have had this same issue and it seems like a growing number especially in early model 3 cars. I was giving a warning about low brake fluid and advised not to drive the vehicle before getting it inspected.
NHTSA complaint #11727777 — an unverified report by a vehicle owner.
Vehicle is 7 years old with 107,000 miles. I received a warning regarding low brake fluid with instructions not to drive the vehicle. Dealer is advising all brake lines are rusted out and need replacement. Rusted lines are apparently causing the brake fluid to leak. I've never heard of any vehicle, let alone a 7 year old vehicle, needing all brake lines replaced. After researching online, my 2018 Tesla Model 3 is not the only Tesla Model 3 with this issue. Specifically, it appears some early 2018 Model 3s have suffered this issue. I believe this is a design defect and safety issue, and that Tesla should be voluntarily repairing affected vehicles with this known issue, since it is a design/safety issue.
NHTSA complaint #11706805 — an unverified report by a vehicle owner.
Brakes failed to stop the car. The car sat at Tesla service center for one month with no action from Tesla.My wife rear ended another car. The air bags deployed. No one was injuryed and the other was not damaged. Both people could have been seriously hurt or killed. Car was finally towed to Classic Collision November 24 by State Farm Insurance for repair. Estimate to be repaired January 8, 2026.
NHTSA complaint #11706446 — an unverified report by a vehicle owner.
The steering was hard to turn, and the fully supervised driving mode didn't work. This has happened twice, and both times the issue went away on its own after a few minutes. I performed a soft reset both times, but it did not resolve the issue. The first time, the steering was very heavy, i.e., hard to turn. The second time was less difficult, but in both cases, FSD (Full Self-Driving) did not function. General Guideline questions: 1. The steering system malfunctioned. The car is available for inspection. 2. The car was very difficult to drive. I was able to turn the wheel, but I won't let my wife drive it. 3. No. The nearest service center is 90 miles away, and so far, they want me to bring the car to them. I am still working to resolve this, as I believe this issue requires mobile service. 4. No inspections have been done. 5. Yes. An alert message on the main display stated: "Alerts - Steering & Braking - Steering assist reduced/Steering may require increased effort."
NHTSA complaint #11704827 — an unverified report by a vehicle owner.
Regen braking sporadically not working when going down mountain or steep roads. Sometimes they work and sometimes they won’t. This is after extensive driving on warm days while battery is between 70-80%. Support could not help me and they don’t have any technicians available. I’ve sent them videos and time stamps and they are ignoring the issue and unable to help due to lack of knowledgable representatives This is a serious safety concern
NHTSA complaint #11702604 — an unverified report by a vehicle owner.
While driving my Tesla Model 3 with self-driving engaged in excellent conditions, the car suddenly braked to a full stop. There was no apparent reason to do so and the driver did nothing. The road ahead was free of traffic, and no obstacles, pedestrians or animals were visible. It was possible to resume driving by turning self-driving off. Tesla forums online show many instances of others reporting similar problems in various Tesla models over several years. A rear end collision will ultimately be the result of this flaw if it hasn’t yet occurred.
NHTSA complaint #11701217 — an unverified report by a vehicle owner.
While driving home from purchasing my new tesla a under dash panel just to the left of the steering column detached an fell on top of the brake pedal. This made it impossible to apply the brakes. Fortunately because of regenerative braking i was able to stop the car and replace the panel. The panel is only held in place with 2 magnets. I find this extremely dangerous and could have easily caused a life ending accident.
NHTSA complaint #11699131 — an unverified report by a vehicle owner.
The vehicle’s brakes did not work, automatic emergency brakes and collision warning both did not work. I pressed on the brake for about 5 seconds but the brakes did not work, resulting in a collision with the car in front. Everything is available for inspection if needed. Both my safety and the driver of the vehicle in front of me was at risk. The problem has not been confirmed yet. The vehicle is currently at a shop, waiting inspection. There were no warning lamps, messages, or symptoms.
NHTSA complaint #11697065 — an unverified report by a vehicle owner.
Repeatedly and randomly, with cruise control (not FSD) engaged, the car would brake, sometimes aggressively. The last time, it braked so hard the tires or brakes squealed and the car swerved slightly before I was able to regain control. This was on the freeway (in Colorado, if I remember correctly) while I was cruising at 70 or 75 MPH. I decided that that was the last time I would use cruise control; it was just not safe. I had an appointment on October 22 to take the car in for service. But then a friend told me this was called "phantom braking" and that there was no fix. A friend suggested that I contact the NHTSA.
NHTSA complaint #11695523 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11695420 — an unverified report by a vehicle owner.