Warning problems of the 2025 Tesla Model Y

The vehicle has suffered recurring, critical electronic and low-voltage safety system failures that first began under the original factory warranty and have now resulted in a complete central computer (hw4) failure. History of defect: 1. Feb 2025 (~7,170 miles): initial failure of the 16v low-voltage network and safety systems. Tesla replaced the vcfront body controller and low-voltage battery under warranty. 2. May 2025 (~14,543 miles): safety equipment failures required replacement of the cabin radar and seat belt buckles under warranty. 3. Sept 2026 (~80,000 miles): total hardware 4 (hw4) central computer failure. This resulted in the complete loss of all active safety systems, forward collision warning, automatic emergency braking, autopilot, backup cameras, and power management features. Safety risk: the complete failure of the hw4 computer completely disables essential safety functions required for safe vehicle operation on public highways. Tesla has denied warranty coverage for the hw4 replacement despite the issue originating from early low-voltage controller failures during the bumper-to-bumper warranty period. Additional critical safety incident: during the computer/system failure, I experienced a power steering malfunction accompanied by an on-screen warning. The steering wheel became extremely hard to turn/stiff, making it nearly impossible to steer the vehicle safely.

Summary of safety defect: multiple critical safety systems randomly disengage without warning while the vehicle is in operation, creating an immediate crash hazard. Detailed description: for approximately one month, my vehicle has experienced intermittent, unpredictable failures of multiple safety-critical systems while driving. These failures occur randomly during operation and include: regenerative braking system failure (primary safety concern) lane departure warning system failure automatic vehicle hold system failure traction control system failure automatic emergency braking system failure electronic stability control system failure safety hazard analysis: the sudden disengagement of regenerative braking while driving poses an acute collision risk. Tesla vehicles are designed with regenerative braking as the primary deceleration method when releasing the accelerator. Drivers develop muscle memory and expectations based on consistent vehicle behavior. When regenerative braking unexpectedly disengages mid-drive, the vehicle's deceleration characteristics change dramatically and without warning, creating a dangerous situation where: the driver expects normal deceleration upon releasing the accelerator the vehicle instead continues at speed, requiring sudden brake application reaction time is insufficient to compensate for the unexpected behavior change rear-end collisions or other crashes become likely, particularly in traffic similarly, the automatic vehicle hold feature unexpectedly disengaging means the vehicle may roll when the driver expects it to remain stationary at traffic lights or stop signs. Pattern and frequency: these system failures occur randomly and unpredictably while driving. The issues sometimes resolve after: restarting the vehicle restarting the cent however, the failures recur without warning during subsequent driving. Manufacturer response: service visit date: November 28, 2024 diagnosis: Tesla service center acknowledged this as a.

Self driving was maintaining vehicle. Looked at roadway before reaching down to passengers side for water bottle. The weight shift in the seat turned the self driving off immediately while turning sharp left. The Tesla Model Y crossed the left interstate lane barely missing an 18-wheeler. Drove 80mph in the central ditch, branches, and rocks. Car was still in drive, and rolled up to roadside which was covered in dust. The two eighteen-wheelers that I cut off then drove away, and drove Tesla to next exit to see damage. (dashcam footage available. ).

While on a two lane road, my car decided to go around the car in front of me into on-coming traffic while in full self-driving mode. I had to jerk the car to the right to prevent a head-on collision!!!! I missed the on-coming vehicle by seconds!!! this was terrifying!.