2020 Tesla Model Y brakes problems

Filed Oct 22, 2026 · Brakes, Driver assistance · OR · crash · 1 injury

I was driving a 2020 Tesla Model Y with Full Self-Driving (FSD) engaged when another vehicle unexpectedly turned into my path, resulting in a heavy initial collision. However, the most critical safety failures occurred immediately after this first impact: FSD Failure to Disengage: Despite the severe physical impact of the collision, the Tesla FSD system completely failed to detect the crash or automatically disengage. It did not apply the brakes. Instead, the system continued to actively propel the vehicle forward for approximately 5 to 10 meters, steering it directly into a concrete traffic median and causing a severe secondary collision. -Airbag Non-Deployment: Despite enduring two distinct physical impacts—the initial crash and the secondary median collision which resulted in a broken axle—none of the airbags deployed to protect the cabin. -The vehicle was rendered a total loss. It has been inspected by the responding police officer (who cited the other driver for the initial crash) and my insurance company's total loss adjusters. There were no warning lamps or messages prior to the failure. A driver assistance system that continues to independently drive a vehicle after a structural crash, coupled with a complete failure of airbag deployment, poses a severe risk of further injury or fatalities to the occupants and the public. Tesla Customer Service has opened an internal investigation , but I am filing this report directly with the federal safety agency because a driver assistance system that continues to independently drive a vehicle after a structural crash, coupled with a complete failure of passive safety deployment, represents a catastrophic safety defect. I urge the federal safety agency to investigate Tesla’s FSD post-collision disengagement protocols and airbag sensor reliability to prevent future fatalities. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 24, 2026 · Brakes, Electrical · VA

2020 Model Y developed a parking-brake/braking system failure. Vehicle displayed "Steering & Braking - Parking brake functions degraded/parking brake may not apply or release." This resulted in the vehicle being unable to drive for extended periods of time. Tesla diagnosed a rear-right brake caliper failure and quoted approximately $886. Tesla acknowledged the condition is not normal wear and tear but declined coverage because the vehicle is outside of warranty and there is no open recall. I am concerned about premature failure of a safety-critical brake/parking-brake component.

Filed Apr 21, 2026 · Brakes, Suspension · CO

There was a grinding sound coming from the LF wheel. This was progressively getting worse. Car was shaking while driving so dropped it off with my mechanic due to safety concerns. Per the mechanic that fixed the issue: Inspection found LF wheel bearing is loose. A bolt backed out on inside rubbing through axel shaft. Allowed wheel bearing to damage to damaged from moving in place. Axle shaft damaged from rubbing on backed out bolt. Replace LF axle shaft and wheel bearing. Informed by mechanic that wheel could have fallen off while driving. No prior work. Mechanic believes most likely issue was not having the bolts appropriately installed at time of manufactue

Filed Jun 13, 2024 · Brakes · MD

When I went to my local garage to have a wheel rotation and wheel alignment done, they discovered that my rear driver side break hose was leaking. They also discovered that the rear passenger side break hose was showing similar wear/damage. I had the car towed to Tesla repair center because the replacement parts were backordered for the local garage. At the Tesla repair center, I asked if this was a potential build quality issue or something else, which they couldn't answer. Besides tire related items, like new tires and wheel alignment, all my other servicing was done thru Tesla. They noticed that they had done some half-shaft lubrication work that would have required them to disassemble the breaks. Of course they are not going to speculate or admit wrong doing. Therefore, in my mind, the issue was either original build quality from the factory or maybe the Tesla service mechanic not properly reassembling the breaks during one of the service visits. Just incase this was a factory build issue, I wanted to put in this incident so it can be counted towards any tally that the federal safety agency maybe keeping.

Filed Mar 2, 2024 · Brakes · NY

Tesla Model Y, loses control in snow and fish tails, making it unsafe. This has happened multiple time in winter and even in heavy rain. I follow standard recommendations for winter/snow driving, if you skid, ease off acceleration, and do not brake to avoid skidding. If we do this, the regenerative brakes kick in and brakes the car, causing the skid. Have had several narrow escapes in highways and even in regular roads. I hope Tesla will can give an option to turn of the regenerative braking for winter driving. Thanks

Filed Sep 25, 2023 · Brakes, Driver assistance · NJ

We’re getting errors for traction control, reduced traction, control, disabled automatic emergency, braking is unavailable, ABS disabled. This is a manufactures defect, and Tesla is requiring us to pay.

Filed Aug 30, 2023 · Acceleration, Brakes · OR

While driving in cruise control mode, not auto steer, and with no vehicle in or obvious obstruction in front, the brakes will be applied without warning (phantom braking). It has happened multiple time in the years of ownership. It has happened once or twice with a vehicle following resulting in near rear-end collision. In one case this resulted in the follower reacting with "road rage," passing with horns blaring and braking in front of my vehicle. I have this recent incident on video as it just requires me to honk the horn and the last 5-10 minutes of driving is recorded.

Filed Aug 21, 2023 · Brakes, Steering · CA

I purchased our Tesla model Y 3 years ago. I intentionally disabled and did not subscribe to any autonomous driving features because I don’t trust them. I disabled all aspects of auto pilot functions. Despite this, my car still will automatically swerve at random times, slam on the brakes randomly with no reason to break, etc. It is terrifying when this happens unexpectedly and infuriating that I have disabled all these features, but it still does this. This is most common when I put it in cruise control. Rarely these will happen when, for example you cross a double yellow line, but most of the time they happen when nothing has occurred to prompt them. I believe this is an unsafe feature, and needs to be investigated. Unfortunately, with Tesla they have no customer service so there’s nobody that I can report this to.

Filed Jul 19, 2023 · Brakes · FL

Phantom breaking

Filed Jun 15, 2023 · Brakes, Driver assistance · MN

On the last road trip, my car emergently braked for no reason when using cruise control and autopilot causing safety issues for cars behind my vehicle. This happened at least 6 times on my 500-mile round trip. I reached out to Tesla service and was told there is no fix at this time. in my opinion this is a dangerous problem that needs addressing in an urgent manner.