2026 Mazda CX-30

Abrupt acceleration while pushing the gas pedal, erratic tachometer. Stays at the same speed for a while when gas is pushed at highway speeds then accelerates abruptly. Vibration and noise during park. During highway driving, merging and passing got risky. Bought the brand new car on 7 September, immediately followed by these issues, got the car towed to the dealership on 10 September. Still in service who confirmed most of the issues were reproduced. No warnings in the console. Today is 16th. The last time I was contacted by the service was 11th. Was not given a timeline.

I am reporting a severe electrical fire and system failure hazard resulting from unauthorized, dealership-installed aftermarket wiring modifications on a brand new 2026 Mazda CX-30. ​At the point of sale, Walker's Renton Mazda ([XXX]) spliced invasive, unauthorized aftermarket tracking/security wiring (suspected LoJack or similar) directly into the factory CAN-bus and main wiring harnesses. These modifications were done without consent, actively concealed during the pre-purchase inspection, and compromise the integrity of the vehicle's primary electrical architecture. ​Specifically, the physical installation bypassed standard safety protocols and compromised the vehicle's firewall insulation. As a military electromechanical engineering veteran, I recognize that unauthorized taps into a modern vehicle's high-speed data network and main power lines introduce immense risk of short circuits, signal logic failure, parasitic draw, and most critically, catastrophic electrical fires. ​Despite providing physical evidence of the tampered wiring, the dealership's management has denied the modifications exist and refused to remediate the safety hazard by unwinding the compromised vehicle. Mazda North American Operations (MNAO) has also refused to intervene under Case #XXX. The vehicle remains in my custody, but it is fundamentally compromised and unsafe due to the dealer's tampering with factory safety and electrical standards. I am requesting NHTSA investigate this dealership's practice of covertly installing unregulated electronics into new factory wiring harnesses, as it presents an unreasonable risk to motor vehicle safety. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)