I am reporting multiple serious safety-related mechanical failures involving my 2024 Mazda CX-30, all occurring while the vehicle was covered under Mazda's manufacturer's warranty. At approximately 8,000 miles, my vehicle developed seized brake calipers. Despite bringing the vehicle to an authorized Mazda dealership multiple times, my concerns were initially dismissed. I continued operating the vehicle for thousands of miles before the brake calipers, rotors, and pads were replaced. This raises serious concerns...
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regarding braking performance and the safety of myself and other motorists. On October 13, 2025, at approximately 41,000 miles, my vehicle experienced a complete transmission failure, leaving me stranded and requiring towing. The transmission was subsequently replaced under warranty. My vehicle has also unexpectedly shut down while being driven on public roads on multiple occasions. On July 10, 2026, the vehicle broke down on a narrow, winding, two-lane roadway. The vehicle displayed a message instructing me to place it in Park. These unexpected failures created dangerous situations, potentially exposing me and surrounding motorists to collisions, particularly where safe stopping areas were limited. Additional warranty-related failures have included oil leaks from the oil pan and timing chain cover, forward-facing camera and driver-assistance system malfunctions, and other mechanical concerns. These problems have been reported to authorized Mazda dealerships, and multiple components have been inspected, repaired, or replaced under warranty. Despite extensive repairs, I remain concerned about the vehicle's overall safety and reliability. I am requesting that NHTSA investigate the repeated braking, transmission, and unexpected vehicle shutdown incidents. A relatively new vehicle should not repeatedly experience failures that could endanger its occupants and other drivers. I am concerned that these failures may indicate broader safety defects requiring inv