2023 Tesla Model Y brakes problems

Filed Nov 2, 2026 · Brakes, Electrical · AZ

I am writing to formally escalate the recurring and increasingly serious technical and safety issues with my Tesla Model Y. Since July 2026, my vehicle has experienced multiple system malfunctions despite three service appointments, including the replacement of the vehicle computer during the most recent service. The frequency, severity, and nature of these failures have raised serious concerns regarding the vehicle’s reliability, roadworthiness, and overall safety. What initially appeared to be intermittent system alerts has now escalated to situations involving reduced propulsion, loss of critical vehicle functionality, and the vehicle becoming completely immobile while driving. I am extremely disappointed that these issues continue to occur even after multiple service interventions. I no longer have confidence in the vehicle’s ability to operate safely and reliably. he above incidents, combined with the repeated failures since July 2026, demonstrate a pattern of unresolved and potentially serious vehicle malfunctions. My concerns include: Repeated Park Assist and Adaptive Headlights malfunctions. Camera failures and abnormal vehicle visualizations. Vehicle computer replacement without lasting resolution. Electrical system power reduction and potential vehicle shutdown. Front motor disabling and reduced propulsion. Sudden reduction in acceleration and maximum speed. Windshield wiper failure during rainy weather. Automatic Vehicle Hold becoming unavailable. Automatic Emergency Braking becoming unavailable. Lane Departure Avoidance becoming unavailable. Vehicle becoming completely immobile while driving. Potential inability to restart the vehicle. Failure of driver-side door and trunk access. Unpredictable vehicle behavior and loss of confidence in its safety. These are not merely inconvenience-related issues. They involve fundamental vehicle operating systems and safety-related functions.

Filed Oct 23, 2026 · Brakes, Driver assistance · MO

I am reporting a serious safety-related malfunction involving my 2023 Tesla Model Y, which has approximately 55,000 miles. The incident involved multiple vehicle systems, including the front drive motor, propulsion system, traction control, stability control, steering assistance, and braking-related functions. Prior to the incident, I noticed a water-sloshing sound coming from underneath the vehicle, possibly near the rocker panels, following heavy rainfall. After driving for approximately five minutes and parking, I received multiple warning messages indicating that traction control, stability control, and automatic emergency braking were unavailable. Approximately two hours later, I returned to the vehicle, and the warnings had temporarily disappeared. However, about halfway through my next drive, multiple warnings suddenly reappeared, and the vehicle’s driving and braking behavior changed significantly. The regenerative braking stopped functioning, causing the vehicle to continue rolling when I released the accelerator instead of slowing down as expected. When I applied the brake pedal, I experienced unusual vibrations, increased braking effort, and abnormal noises during braking. This was extremely concerning because it affected my ability to slow down and stop the vehicle normally, creating a potential risk of a collision. I documented the following warning messages with photographs: * DI_a138: Front motor disabled * DI_a223: Traction control disabled * DI_a222: Stability control disabled * GTW_w074: Steering assist reduced * DIR_a062: Propulsive power reduced * APP_w009: Automatic Emergency Braking unavailable Due to the seriousness of these malfunctions, the vehicle was towed to an authorized Tesla Service Center for inspection. But the issue was not resolved as they were not able to reproduce the problem.

Filed Sep 22, 2026 · Brakes, Electrical · TX

On September 13, 2026, my 2023 Tesla Model Y (13,300 miles) displayed a High Voltage System alert stating the vehicle may not restart and service was required. I brought the vehicle to the Tesla Service Center for diagnosis. The technician found the alert occurred when the brake pedal was applied and identified electromagnetic interference affecting signal integrity in that circuit. On September 17, 2026, a ferrite suppressor was installed to address the interference, and the technician noted the alert cleared. He advised that if the concern returned, replacement of the CHMSL (Center High Mount Stop Lamp) may be required. The same day I picked up the vehicle after this repair, the High Voltage System alert recurred. Both occurrences happened while the vehicle was operating under Full Self-Driving (FSD), not under manual braking. My foot was not on the brake pedal either time. This detail was not accounted for in the original diagnosis, which was based on manual pedal actuation as the trigger. I have raised this discrepancy with Tesla and requested a re-diagnosis based on FSD-commanded brake actuation, including review of vehicle logs for both incident timestamps. My safety concern is that the alert explicitly warns the vehicle may not restart, and the underlying cause has not yet been correctly identified, since the initial repair did not resolve the issue and failed the same day. The vehicle and its diagnostic logs are available for inspection upon request. The problem has been reproduced and confirmed by the Tesla Service Center (two visits, same fault). It has not been inspected by the federal safety agency, police, or insurance. No warning lamps or symptoms were noted prior to the first occurrence on September 13, 2026.

Filed Sep 9, 2026 · Brakes, Driver assistance · NY

I own a 2023 Tesla Model Y (VIN: [XXX]) equipped with Full Self-Driving and Hardware 3 (HW3) computer. Over the last couple of years, while using Autopilot/FSD, my vehicle has repeatedly exhibited phantom braking, including sometimes coming to a complete stop for no reason. My vehicle has also swerved into the lane of oncoming traffic on many occasions. On one occasion, this happened three separate times in one day, and the following day the vehicle swerved off the side of the road while FSD was engaged. I have reported these incidents to Tesla Service repeatedly for years, including photos of related screen malfunctions and "What Happened" incident data, documented in the Tesla app as well as in-person at service center visits. August 2026 was the first time Tesla told my husband and me that this was a known hardware/software (Hardware 3) issue, despite years of prior reports. Tesla has given conflicting information about whether a hardware upgrade is possible: I was told the HW3 computer cannot be upgraded and was encouraged to purchase a new vehicle instead, while a service representative separately mentioned a $3,000 upgrade option that "probably wouldn't fix the issue anyway." I am concerned this vehicle poses an ongoing risk of a head-on collision or road departure to myself and other drivers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 29, 2026 · Acceleration, Brakes · CA · crash

On February 17, 2026, around 4:20 pm, as I was departing my agency's parking garage structure, my 2023 Tesla Y uncontrollably and un-prompted accelerated at a very high speed. I applied the brake and it would not stop. I nearly killed the security guard at the garage who was trying to direct my vehicle to the correct exit lane. The vehicle ran across a sidewalk adjacent to the garage, ran across a street, hit a street parking meter, ran across another sidewalk, ran across and toppled a perimeter fence around a parking lot across from the garage I exited, ran over concrete wheel barriers, and continued running for about 300 feet before it came to a stop on its own. This duration of this terrifying ordeal was 3 to 5 seconds. The air bags did not deploy. I called 911 repeatedly for Police investigation and report but the Police never showed up. I towed the vehicle to a Tesla Collision Center, which inspected and investigated the accident, and the Tesla Center stated that the FSD system was working properly and did not find anything wrong. I informed the Tesla Center that I did not subscribe to the FSD system service and was not using it during the accident, and they stated that they stand by the determination of their engineering division that reviewed the "blackbox", information gathering device of the vehicle. The vehicle was totaled and non-salvageable. Prior to the accident, the Tesla Collision Center, had repaired the vehicle from a previous accident that occurred on September 25, 2025. There were no warnings before the vehicle uncontrollably accelerated at a very high speed. I have copy of the accident videos. Your platform would not allow me to upload the videos.

Filed Jul 21, 2026 · Brakes, Driver assistance · NY

I was pushed to complete an update on my 2023 Tesla Y with an over the air update. This happened last week. Following the update i have been getting a slew of errors when driving my car related to the parking break, brake functions, automatic energy braking and steering are affected. The wording on the app / car says, Alerts - Steering & Braking - Parking brake functions degraded / Parking brake may not apply or release / Parking brake may not apply or release. This causes my auto brake to not engage, my hold break to not engage, my parking brake to not engage. This causes my car to roll at stop / red lights. I have to physically slam by brakes to stop. This is extremely unsafe and Tesla is trying to charge me $130 to diagnose the car to see why the update caused the issue. My car went from fully drivable without any FSD, normal driving to a runaway trainwreck. This happens roughly 20-30 minutes randomly into driving. Not immediately and it is completely random.

Filed Jun 10, 2026 · Brakes, Electrical · FL

A 2023 Tesla Model Y experienced a sudden electrical failure while parked/being prepared for use. Multiple warnings appeared on May 26, 2026, including high-voltage system service required, low-voltage electrical system power reduced/vehicle shutting down, cabin climate control limited, and steering/braking/parking brake functions degraded. The vehicle could not be driven normally and required flatbed recovery. The failure created a safety concern because the vehicle showed high-voltage and low-voltage faults together with steering/braking/parking brake warnings and could have left the vehicle disabled without reliable restart or parking brake function. The manufacturer service center inspected and repaired the vehicle after several days. The component should be available through manufacturer service records, and screenshots of the warnings, tow/recovery, and service records are available.

Filed Jun 9, 2026 · Acceleration, Brakes · FL · crash

I was driving my Tesla in self drive mode, and ibecause it started raining. I reduce the speed to standard. I had a notification on the screen, an alert in red. That the tesla reached the maximum speed in that mode “standard”. I was surprised and decided ti canceled the FSD feature and took control of the vehicle. Then when I was driving in the expressway very close to my exit on the right lane, the car accelerated by itself and turn to the left unexpectedly. I tried to returned the car to my lane and I never had control again of the car. Not the steering wheel, not the breaks responded. I was spinning on the expressway until I hit the concrete barrier with the rear bumper. Hopefully I did not hit any car nor they didn’t hit me. The car shutdown after the impact. Tesla sent me the footage of the impact, ignoring the moment that caused that incident that was some seconds before. The brakes were automatically turned onz and the wheels did not move. I know something wrong happened. Specially because the incident some minutes before when I was driving in standard mode and accelerated with no reasons. I have safety concerns. Also I noticed that after the last upgrades the car was havung navigation issues that I reported immediately when the autopilot was removed and we have to select the options.

Filed May 24, 2026 · Brakes, Driver assistance · NM

I have written several times before about my car's phantom braking in cruise control. When the Santa Fe Tesla dealer, where I bought the car, told me recently that the problem had been fixed, I was disappointed they didn't bother to tell me, but thrilled to hear the news. On May 12-13 I drove over 900 miles. I tried cruise control for significant portions of both drives and did not experience one problem. Finally, I thought, they fixed the problem...and how nice it was to have cruise control for extended drives. Not so soon: on May 19th I was driving 2 friends up to volunteer at the Wildlife refuge on I-25 in northern New Mexico. The phantom braking happened again. My friends were dismayed...one thought I had seen something in the road that she didn't see. The other, in the back seat, tried to understand what happened. Please, this is beyond the pale! Of course I will call and take the car in to the dealer...an hour's drive for me. I will be surprised if they fix it, and if they do it under warranty. I did just buy new tires (see previous report about original tires with multiple flats and not even making it to their 40,000 mile warranty) so I'm no longer worried about getting a flat in the rural areas where I live and drive.

Filed May 11, 2026 · Brakes · MD

Purchased used 2023 Tesla Model Y from Tesla on April 17, 2026 at ~16,300 miles. Pre-delivery, Tesla notified me by text that the vehicle failed state safety inspection due to front upper ball joint play (a known Tesla Model 3/Y defect). Tesla repaired it at its own service center and certified it as passing on April 8, 2026. No warning lamps or messages. ~12 days post-delivery a family member reported a noise from the left rear; the vehicle was then parked. On May 10, 2026, I removed the left rear wheel and found the left rear brake caliper completely detached from the rear knuckle. Both caliper bracket mounting bolts were missing. The caliper was held only because it had seized on the rotor. Vehicle unsafe to operate. Towed by flatbed to Tesla May 11; available for inspection on request. Properly torqued caliper bracket bolts do not back themselves out in ~800 miles of light use. Realistic causes: (a) bolts installed but not torqued to spec, worked loose in service; (b) bolts missing at state inspection and certified anyway; (c) suspension disassembled during the pre-sale repair, bracket reassembled with bolts omitted. All implicate Tesla's workmanship; (b) and a visibly-loose (a) also implicate the inspection. Tesla previously acknowledged this failure mode in recall SB-21-33-002 ("Loose Brake Caliper Bolts," 2019-2021 Model 3 / 2020-2021 Model Y): caliper bolts "may not be torqued to internal specifications" and "may be loose, allowing the brake caliper to separate." My vehicle is outside that range but the recall shows this is a known Tesla pattern. Risk: caliper detachment can wedge the wheel, lock the brake, damage tire/wheel, boil brake fluid, or break free at speed — any can cause loss of control. Vehicle driven ~800 miles in this condition. Dealer confirmation pending; Tesla instructed in writing not to repair pre-inspection. State Police ASED complaint filed; formal dispute filed with Tesla Resolutions.