2024 Tesla Model Y Engine Problems

SYSTEMIC POWERTRAIN SAFETY DEFECT: Catastrophic Loss of Propulsion & Failure of Dual-Motor Redundancy. 1. Incident & Safety Risk: While traveling in the far-left HOV lane of a 6-lane interstate highway, the vehicle experienced an uncommanded, unwarranted Automatic Emergency Braking (AEB) intervention during a controlled lane change. This sudden deceleration instantly triggered a complete powertrain collapse and total loss of propulsion. The vehicle came to a dead stop in a live highway lane. The driver (me), passenger, and our [XXX] infant were stranded in lane 3 of a 6 lane highway for ~35 minutes until Highway Patrol units arrived to manually push the vehicle across live traffic to the shoulder. This near-miss was an immediate, severe life-safety crisis not just for the occupants but also to others on the road. 2. Symptoms & Alert Codes: There were zero warning symptoms prior to the incident. Immediately upon the power collapse, the touchscreen displayed critical faults. Active diagnostic telemetry confirmed alert codes: DI_a137 (No Capable Drive Units) DI_a063 (System Graceful Power Off) 3. Manufacturer Confirmation & Inspection Status: The failure was confirmed in writing by the manufacturer’s service center. The diagnostic invoice explicitly states: "The rear drive inverter experienced an unintended reset due to an error. Sudden power reduction and shutdown while driving." The vehicle is currently held at the manufacturer's facility and is fully available for inspection. 4. Engineering Assessment: As a mechanical engineer, my assessment is the surge through the AEB event to the inverter’s DC-link was unable to damp this load, forcing a hardware logic reset. Crucially, the software logic failed to partition this fault. In a dual-motor architecture marketed as having built-in powertrain redundancy, a localized rear inverter reset should be isolated, leaving the front motor operational to safely navigate out of traffic, this did not happen. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (

NHTSA ID

11750667

Incident

Jun 25, 2026

Vehicle experienced PCS (Power Conversion System/DC-DC converter) failure, rendering it completely undrivable—no 12V power, cannot charge or start. PCS is physically integrated inside high-voltage battery pack per service manuals. High-voltage battery warranty active (8yr/120k miles). Tesla service denies coverage citing "associated component" in vague emails—provided only general warranty table, no specific exclusion language despite repeated requests for exact quote/formal written denial. Escalated to managers: Offered "view-only" internal service bulletin on screen at meeting—no print/copy/photo allowed. Explicitly refused formal written denial letter.

NHTSA ID

11712254

Incident

Jan 16, 2026

The contact owned a 2024 Tesla Model Y. The contact stated that while shifting the vehicle into drive (D), the vehicle inadvertently accelerated. The contact stated that he depressed the brake pedal, but the vehicle was gaining forward momentum. Additionally, the steering wheel would not turn right or left. No warning light was illuminated. The contact stated that the vehicle gained speed and crashed through a chain link fence and drove into an alley. The contact stated that the air bags deployed. The contact stated that the vehicle then crashed into a building wall and finally stopped. The contact stated he had abrasions on both hands from the air bag. The contact stated he was treated by EMT on scene. The fire department and police were also at the scene. The vehicle was towed to an impound lot and declared a total loss by the contact's insurance provider. The manufacturer was not informed of the failure. The failure mileage was approximately 25.

NHTSA ID

11674618

Incident

Jul 29, 2022

Mileage

25 mi

SUDDEN ACCELERATION, I WAS DRIVING IN MY OWN DRIVEWAY AND A MODEST SPEED T15 MPH I HAVE A CIRCULAR DRIVEWAY AND I WAS ASCENDING UP THE CIRCLE WHEN THE CAR SUDDENLY ACCELERATED WITHOUT MY ACTION. i TOOK MYI FOOT OFF THE ACCELERATOR AND HIT THE BREAK BUT THE CAR DID NOT STOP OR SLOW DOWN. IT CONTINUED UP MY DRIVEWAY ON MY LAWN AND ACCROSS MY LAWN THROUGH A FENCE AND I WOUND UP IN MY NEIGHBORS LOT WITH CONSIDERABLE DAMAGE. I WAS SHAKEN BUT DID NOT SEEK MEDICAL ATTENTION AT THE TIME. MY NEIGHBOR AND MY WIFE ASSISTED. THE CAR WAS TOWED TO TESLA CONTRACTOR BODY SHOP -RECON. WHERE IT IS NOW. I HAVE REQUESTED THAT TESLA EVALUATE AND REPAIR THE CAR BEFORE I DRIVE IT AGAIN AND PICK IT UP FROM THE BODY SHOP. I NOTIFIED THE BODY SHOPP(TONI MCCARTHY) AND TESLA SERVICE(RADCLIFFE SERVICE PERSON WORKS FOR DON HADDON SERVICE MANAGER) .SO FAR NOTHING HAS HAPPENED . TESLA ASKED ME TO SEND A PHOTO OF THE ACCELERATOR BUT SINCE THE CAR IS STILL IN THEIR AUTHORIZED BODY SHOP, I AM UNABLE TO DO IT. i AM AFRAID TO DRIVE THE CAR AND ASKED THEM TO TOW IT FROM THE BODY SHOP TO THE ROCKVILLE TESLA DEALER BUT THEY SEEM RELUCTANT TO DO THIS. MY WIFE HAD A SEPARATE PRIOR EXPERIENCE WITH SUDDEN ACCELERATION .N HOPING FOR NHTSA INTERVENTION

NHTSA ID

11637163

Incident

Dec 2, 2024

Since I purchased the car 4 months ago my car has been going into the service center non stop for every issue you can imagine. Tesla spins and blames all issues and ignores me. Corporate says they can’t do anything and then ignore. Service center providing inaccurate or not providing service invoices.Deny my buyback requests. Repairs are failed and new damage occurs at every service appointment. New issues arise with the car every time I drive it. I rarely drive it as it’s not safe. Tesla continually cancels service appointments or does not have parts in stock. issues: -Safety restaurant system fault -electric motor issues: loud high pitched whistle/whine when driving. -car loosing power while driving -seat moving while driving -window clicking -water dripping out of dash vents. -Misalignments: frunk, trunk, trim -paint drips, bubbles, cracks, peeling -battery range issues -battery coolant fan issues -defects interior plastic surfaces -seat defects -hole left in front of car between dash and windshield with damages windshield. New dash uneven over airbag. -plastic trim falling off

NHTSA ID

11627857

Incident

Jul 5, 2024

The contact owns a 2024 Tesla Model Y. The contact stated that the vehicle was experiencing abnormal battery drainage and was not operating based on the designed mileage. Additionally, the contact stated that the vehicle was overheating, and the failure persisted after the vehicle had been parked and turned off. The contact also stated that the front passenger's side window would roll down unintentionally while driving. There was no warning light illuminated. The vehicle was taken to a Tesla Service Center several times; however, the failure could not be replicated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 6.

NHTSA ID

11591770

Incident

Apr 14, 2024

Mileage

6 mi

Front motor of 3-week-old Tesla Model Y became disabled while driving on a highway at 65 mph. This meant the car also lost power steering, traction control, and ABS braking. Car was limited to top speed of around 40 mph on a busy highway with very little room to pull over. Car was difficult to steer and braking was greatly reduced. There was no advanced warning of this. Was finally able to pull over, exit and reenter the vehicle, which temporarily corrected the problem. However, when the car was started the next day, the front motor was disabled again, but resolved when the car was restarted. The car was not driven again until Tesla service center was contacted and car was taken in for repair. On the way to the service center, the issue occurred again. The alerts included “Front motor disabled - OK to drive. Vehicle power may be limited” The vehicle is not safe to drive since this is happening while traveling at high speeds. Tesla service has not addressed the issue or tried to diagnose the cause yet in spite of the car being at their service center for over a week.

NHTSA ID

11586430

Incident

Apr 20, 2024

Electrical system had 7 alerts/warning scroll on screen. Said vehicle was going to shut down. Regenerative braking system failed. Pulled car into a parking spot. Vehicle would not go into park so I could not take foot off of brake. Started to shift between park and neutral randomly. Was told by Tesla to reboot car. Did this three times, but nothing changed. Tesla dealership reproduced and confirmed. There were no warnings or messages before the incident.

NHTSA ID

11580588

Incident

Mar 26, 2024