2021 Tesla Model Y other reported problems

UNKNOWN OR OTHER

On June 7, 2026, my 2021 Tesla Model Y with approximately 37,131 miles became completely unresponsive and could not be driven. Tesla Mobile Service replaced the 12V low-voltage battery on June 11, 2026. The official repair notes stated that the battery was replaced, proper operation was verified, there were no active alerts, and the vehicle was in excellent condition. Shortly after this repair, multiple vehicle systems stopped functioning, including all cameras, navigation/GPS, and software/firmware updates. Tesla Service later diagnosed the vehicle as requiring replacement of the HW3 vehicle computer at a cost of approximately $3,066. The loss of camera functionality disabled or affected multiple driver assistance features that rely on the camera system. The vehicle has been unavailable for approximately one month while awaiting repair. During discussions with Tesla Service regarding the diagnosis, I was informed verbally by the Service Manager that they see similar HW3 computer-related issues on a regular basis (approximately every other week). I cannot independently verify that statement, but I am including it because it contributed to my concern that this may not be an isolated incident. I am not asserting the root cause of the failure. I am submitting this complaint because the loss of the vehicle’s camera system and related driver assistance functionality may represent a potential safety concern, and I believe NHTSA should be aware of this incident.

NHTSA complaint #11754296 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My car is having issues with downloading the software and installing it. It usually happens during the summer. 2025 summer i booked an appointment and visited the Tesla Service center. They diagnosed and told me the ECU is having trouble and need to replace same. Its cost around USD 4K. My car faced this issue right after the warranty is over. First the High Voltage batter died next day the warranty got over, but they replaced it under Battery Warranty. But ECU issue they want me to pay for the same. Its a huge cost and i do see lot of customers keep complaining about the same/similar issues all over internet. It looks like a wide spread issue which Tesla ECU fail after the warranty get over. Biggest challenge for the customers are, No Navigation, GPS is not working, All the cameras goes blind, Lane assistant doesn't work. dashcam recording doesn't work. Technically we can just charge the car and drive. No safety features work as expected.

NHTSA complaint #11751688 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Even after the recent recall for backup camera freezing, my backup camera froze again today. I took the car in, in the past, to report the problem and was told to reset the computer even after the technician witnessed the problem. Got charged $300 so haven't been back. Problem has been there for a couple of years. I had hoped the software update would fix it but no such luck.

NHTSA complaint #11741705 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I purchased a 2021 Tesla Model Y (VIN: [XXX] ) used directly from Tesla. I am the first retail owner outside of Tesla. I am currently experiencing a knocking noise from the driver side suspension. I have requested that Tesla inspect and complete the following federally mandated safety recalls and service bulletins, none of which appear in my vehicle’s service history: • NHTSA Recall 21V-835 / SB-21-31-003 — Front suspension lateral link fasteners may loosen and separate from the sub-frame, causing instability and crash risk • NHTSA Recall 21V-912 — Suspension knuckles may fracture • SB-20-31-006 — Front upper control arm ball joint reseal Tesla service has refused to perform these repairs free of charge, citing expired warranty (warranty expired April 5, 2025). Tesla’s response does not address that these are federal safety recalls, not warranty repairs. Federal law requires recall repairs to be performed free of charge regardless of warranty status, age, or mileage. Tesla has also failed to provide written documentation confirming whether these recalls were completed prior to selling me the vehicle. Instead, I have been redirected to a self-service VIN lookup tool and a general data privacy request form — neither of which confirms when, where, or whether the recall work was actually performed. I am requesting NHTSA investigate Tesla’s failure to complete these safety recalls prior to selling this vehicle to a retail customer, and their refusal to honor federal recall obligations. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11741805 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

This incident is related to Full self driving feature in my Model Y. It abruptly stopped on the road even when there was no obstacle. Luckily there were no vehicles behind my car which would otherwise resulted in accident and injuries to myself and my family.

NHTSA complaint #11741075 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

while traveling at approximately 80 mph with Full Self-Driving (Supervised) engaged, my vehicle experienced a simultaneous failure of the Full Self-Driving computer and the Media Control Unit (MCU) touchscreen. Without any prior warning, the touchscreen went completely black, and the vehicle immediately executed an uncommanded, sharp steering maneuver into the right lane. It was very apparent that if I didn’t take over it was going to continue crossing highway lanes and go off road. I have around 45k miles specifically on FSD and never has it failed in such an extreme manner. This sudden steering input put myself and other motorists at extreme risk of a high-speed collision or roadway departure. I was forced to physically overpower the steering wheel to maintain lane integrity and prevent a crash at highway speeds. The failure appeared to be a total loss of the vehicle’s primary visualization and automated steering systems, leaving me with no digital feedback regarding speed or surrounding traffic while the car was still in motion. Prior to this event, there were no warning lamps or symptoms such as GPS drifting or screen lag. I have since attempted a hard reset and a full power cycle, but the critical nature of this uncommanded steering at 80 mph suggests a systemic defect in how FSD manages hardware or software failures. The vehicle and its internal data logs are available for inspection upon request. This incident has been documented in the Tesla App under a service request for a full log review.

NHTSA complaint #11732025 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The rear camera has failed posing a safety issue when reversing the vehicle.

NHTSA complaint #11731681 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Incident Date: April 11, 2026 Approximate Time: 6:30 PM Component(s): Unknown (Suspected: Electronic Stability Control, Steering, ADAS) Description of Incident: On April 11, 2026, at approximately 6:30 PM, I was operating my Tesla Model Y on a highway with a self-driving mode engaged. I experienced what appeared to be a sudden, unintended acceleration combined with an erratic "zig-zag" steering pattern across multiple lanes. I am not certain of the technical cause, but the vehicle’s behavior felt like a loss of system control that was not initiated by me or the road conditions. I had to intervene immediately to prevent an accident. Post-Incident Actions and Manufacturer Contact: I have since contacted Tesla Service, and while they confirmed that data for that date exists, my formal "Privacy Data" requests for those specific logs have come back empty or missing the relevant timeframe. Summary of Concern: I am reporting this because I suspect a serious software or hardware malfunction occurred, though I do not have the technical diagnostic to confirm which system failed. The combination of the vehicle’s erratic movement and the subsequent difficulty in obtaining the data logs for this specific window of time leads me to believe there is a potential safety defect that requires investigation.

NHTSA complaint #11731428 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I own a 2021 Tesla Model Y with approximately 46,500 miles. The vehicle is currently displaying battery error code BMS_a079, and the battery will only charge to approximately 30%, which severely limits the driving range and makes the vehicle unreliable for normal use. I reported this issue to Tesla on March 6, but the earliest service appointment available to me is March 17 at the Tesla service center in Fayetteville, Georgia. Because Tesla service centers are not widely available, I must travel to another city to have the vehicle inspected. The limited battery charge creates a difficult situation because I must determine how to get the vehicle safely to the service center with very restricted range. I may have to arrange towing or attempt to drive a vehicle that cannot fully charge. This issue has also created a hardship for my household. I have a toddler and normal daily responsibilities, including errands and transportation needs, but the vehicle cannot reliably be used due to the charging limitation. Being without dependable transportation for an extended period of time places families like mine in a very difficult position. This problem appears to be related to the vehicle’s battery management system and is not the result of driver misuse. Consumers should not be placed in situations where a major battery fault leaves them with limited transportation options while waiting extended periods for service, especially when service centers are not easily accessible.

NHTSA complaint #11723794 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I parked my Tesla vehicle in a friend’s driveway. When I returned and opened the driver’s door, I entered the vehicle and attempted to put it into Drive. At that point, the vehicle display went completely blank and the vehicle became inoperable. I then attempted to open the door from inside the vehicle, but the door would not open and I was unable to exit the car. I was effectively locked inside the vehicle. I contacted Tesla customer support and remained on the call for approximately 1.5 hours before receiving assistance. Tesla customer support confirmed that the issue was caused by failure of the 12-volt battery. At the time of the incident, the outside temperature was below 0 degrees centigrade. The incident occurred in Cedar Rapids, Iowa. There was no prior warning or notification from the vehicle or the Tesla mobile app indicating that the 12-volt battery was at risk of failure. The failure resulted in loss of vehicle function and inability to exit the vehicle, creating a serious safety concern.

NHTSA complaint #11710416 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I noticed the windshield washer nozzle on the passenger side isn't either working or not there. I reached out to Tesla, and also stopped by a Local Dealership and they told me that it would cost me out of pocket, since it's out of warranty. Secondly, the left side driver repeater camera has a Glare when turned at night time only. which is quite dangerous due to very less visibility due to the Glare of the Turn signal light that causes the repeater camera to function properly. this is a on going known problem. I have reached out to Tesla for this matter. and I was advised that it would not be covered since it's not under warranty. This issue should be a recall that Tesla should fix. this isn't an issue caused by normal wear and tear it's a manufacturer defect.

NHTSA complaint #11709822 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

In May 2025, Tesla pushed an over-the-air (OTA) software update overnight while the vehicle was parked. When the vehicle was started the following morning, the update had failed mid-process and stalled at approximately 50%. Immediately upon startup, the backup camera and navigation/maps stopped functioning. The vehicle has been unable to complete subsequent software updates since. Tesla service later inspected the vehicle and indicated that the main computer/ECU was stuck in a loop and required replacement. The backup camera and navigation loss occurred immediately following the OTA update and persisted for several months despite multiple service attempts. Due to the vehicle’s rear design and limited rear window visibility, operating the vehicle in reverse without a functioning backup camera significantly impairs visibility. Even when using mirrors or physically turning to look backward, rearward visibility is restricted. As a result, the loss of backup camera functionality presents an ongoing, daily safety hazard during normal vehicle operation.

NHTSA complaint #11705202 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Tesla's Full Self Driving (FSD) stopped my car on trolley tracks today, and would have stayed on the tracks for a minute if I hadn't taken control and driven off the tracks. This occurred in downtown San Diego, where the trolley (light rail) has many level street crossings. They are well marked. You are not supposed to enter the zone around the tracks until the vehicle ahead of you has moved far enough for you to be able to cross the tracks and get safely past them. I was using FSD. It drove my Tesla onto the tracks before the car ahead of me had given me room to get off the tracks. The line of traffic was stopped for a red light. I would not have been able to drive forward until the light changed, perhaps over a minute. So, I took over and manually drove the car into the adjacent lane, which luckily was empty, and off the tracks. If a train had come while FSD was still in control, this would have killed me, and perhaps other nearby people. There was no warning message or other indicator.

NHTSA complaint #11703481 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I dropped my kids to school and started reversing the car without seatbelts. Thinking that I will get out of the parking lot and then put the seatbelt on. Car will stop and goes into park mode. Somehow I came out of the parking lot and about to put and drive again same thing. Car will go into park mode. Somehow I started coming out of the parking lot and took a pause. Same thing again car stops and goes into park mode. It was almost the car behind me about to hit. I guess this is a bug of the “Hold” mode.

NHTSA complaint #11699553 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I am reporting a safety issue involving my 2021 Tesla Model Y. The vehicle recently displayed a “Parking brake function degraded” warning. The car has only 91,000 miles and is approximately four years old, which is far too soon for a failure of a critical safety component such as the electronic parking brake. Please investigate whether this issue is part of a wider defect affecting Tesla Model Y vehicles. This should not occur on a relatively new car with moderate mileage.

NHTSA complaint #11694151 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Rear cameras and side cameras suddenly failed resulting in low visibility and severe blind spots increasing the chances of collision with other vehicles, people, etc. It is reproducible at the dealer and they are trying to fix the problem by replacing the computer. It can be inspected until dealer repairs the issue. The vehicle has only been inspected by the dealer. There was a warning on the screen starting that cameras are temporarily unavailable but camera function did not return after a week and brought to the dealer for repair.

NHTSA complaint #11693540 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

🚨 Immediate Escalation: Safety-Related HV Drive-System Concern / Diagnostic Fee Dispute / No Loaner – Urgent Review Needed VIN [XXX] I am requesting immediate escalation of a safety-related concern involving my 2021 Model Y (approx. 90,000 miles) currently assigned to the Tesla Wilmington Service Center. The advisors (Shelly & Amanda) has stated the diagnostic fee will not be covered until after inspection, but the earliest inspection is October 22, and I’m being asked to drop off the vehicle now with no loaner or transportation support. This is a High-Voltage Drive-System concern that may fall under the Drive Unit Limited Warranty (valid through Feb 2029). The local team refuses to classify the case under warranty review or confirm transportation support, leaving me without safe mobility for weeks. Please escalate this to a Corporate Service Manager or HV Warranty Specialist today and confirm: 1. That the diagnostic will be covered pending warranty review, and 2. That loaner or transportation support will be provided. I’ve been going back and forth with the Wilmington team for a week, and this matter has not been resolved. Despite this being a SAFETY concern and issue . I was told that that O would have to wait weeks to get this issue resolved. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11692553 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

After 4 years of ownership, the HV battery has failed. This has put the car at risk it stopped charging and without charging the car was no longer drivable. The battery was overheating the car was very hot the AC stopped working. This put the car at risk when drive the battery dropped significantly while driving. Yes we got it inspected they said that the battery is failing and needs to be replaced. I have a quote about the replacment parts. There was a message at the end that the battery was unable to charge.

NHTSA complaint #11686642 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

I was driving on the highway with my 2021 Model Y Tesla when control arm detached from the frame. Tesla said they could not confirm if it was covered on the warranty over the phone.

NHTSA complaint #11684879 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The main vehicle computer (MCU) failed. The problem first appeared in May 2024 with intermittent rear camera malfunctions. It has since worsened. Most recently (08/28/25), the center display went completely black and the vehicle became inoperable — I could not start or move it. This left me stranded in a dangerous neighborhood late at night and required the car to be towed. When the display fails, I lose access to the rear camera, climate controls (including defrost), and turn signal indicators. These are safety-critical systems, and in this case the failure also disabled the ability to drive the vehicle entirely. The problem has been reported to Tesla. They inspected the vehicle but claimed the earlier camera malfunction was unrelated to the current computer failure. No independent mechanic has inspected it. The failures are ongoing and reproducible. No warning lights or alerts appeared before the system shut down. The vehicle is available for inspection upon request. Being that this issue originally arose back in May, 2024- it should fall under Tesla’s warranty which expired in December 2024.

NHTSA complaint #11684568 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Brake line failed at the left rear tire. Corroded line. The line is corroded on the right rear also. These are my observations. The brakes failed when driving locally at lower speeds so the car was able to eventually stop due to the regenerative braking. Will be towed to the dealer for inspection/repair. Inspection/repair will occur on Sept.15, 2025. No warning until after the failure.

NHTSA complaint #11682579 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

There is a latch sensor open kept Coming on. I have been to the Tesla dealership twice and nothing has been resolved.

NHTSA complaint #11678430 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Vehicle: 2021 Tesla Model Y VIN: [XXX] Date of Incident: [XXX] On the afternoon of Sunday [XXX], while my Tesla Model Y was parked at home and charged to approximately 80%, both my wife and I attempted to enter the vehicle to attend an important appointment. Upon approach, we found the car completely unresponsive — no power, no screen activity, and we were unable to start the vehicle or release the charging cable. Despite this, both front doors could still be manually opened. However, the frameless windows did not automatically lower as they normally would when opening and closing the doors, As a result, when we attempted to close the doors, both front door windows shattered, as the glass was unable to lower and collided with the door frame. This incident clearly resulted from a critical system failure that disabled essential safety and design functions. The vehicle was not damaged prior to this event, and there was no impact or external force involved. This malfunction rendered the vehicle inoperable and directly caused costly damage. I am requesting the following: A full investigation into the root cause of the power system failure Immediate replacement of both shattered front windows at no cost A written explanation of what caused the vehicle to become unresponsive This issue raises serious concerns about vehicle safety and reliability, especially when essential functions like glass auto-drop are disabled without any warning, leaving the glass vulnerable to breakage. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11670270 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The bolts connecting the front upper control arm and steering knuckle may not have been tightened properly, potentially leading to detachment.  This causes the car to have squeaky, leaking noises when going over bumps and making turns.

NHTSA complaint #11667991 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Tesla refuses to clear this recall, despite the software having been rolled out via over-the-air updates years ago. I now have to sell my vehicle because I'm unable to import it to Canada.

NHTSA complaint #11659090 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The heat pump stopped working twice, which requires a trip to the service center and the repair to restore function is a minimum of $3,000. The vehical has no heat at all, no defrost, no cabin heat nothing! This defect happens in the coldest parts of winter and leaves the owner stranded wherever this occurs. The first time was at 52,000 miles. It wouldn't turn on. The heat pump seized. The second time was on a trip, it blow out all the freon and stopped working in Waterloo, Iowa. I was 4 hours from home and it was -4F outside. The car had 136,000 miles. Many others have had heat pumps go out in the same situation...dead of winter. The repair is $3,000 to get heat back into the car. The heat pumpscare clearly defective or not big enough and are destroying themselves every other winter in Minnesota. This is 1. Dangerous because you can't defrost your windshield. 2. You cold freeze to death in very cold conditions. 3. A very expensive repair pn a part that should last mire than a 1 or 2 years. Home heat pumpsvlast 10- 24 years!!

NHTSA complaint #11644352 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The pedestrian warning system and horn are speakers in newer Tesla's. The speaker is in the front right ahead of the wheel facing down towards the road. When it is raining or snowing, rain or snow get lodged into the speaker and it is completely inaudible. I stood 4 feet away from my vehicle and had someone honk the horn and couldn't hear anything at all. This is very dangerous. The pedestrian warning system is complexly inaudible also. Issue persists for approx. 2 days after rain. If it continues to rain for several days, the horn does not work the entire time. I have contacted Tesla support and they state there is nothing they can do to fix it since it is how it was designed.

NHTSA complaint #11637662 — an unverified report by a vehicle owner.