NHTSA Complaint #11710451 — 2022 ACURA MDX

The vehicle is experiencing a catastrophic mechanical failure of the transfer case/transmission splines, resulting in a 'Loss of Motive Power.' On two occasions while merging into high-speed highway traffic, the engine revved to high RPMs, but the vehicle failed to accelerate for approximately 5 seconds (Mechanical Neutral Drop). These incidents resulted in near-collisions. The vehicle also exhibits violent torque steer and unpredictable handling. The issue was initially reported to an authorized dealer at 70,320 miles but was misdiagnosed as 'no codes were present.' Subsequent inspection by a second dealer confirmed a mechanical failure of the drive splines. This is a purely mechanical failure that does not trigger dashboard warning lights or Diagnostic Trouble Codes (DTCs), leaving the driver unaware of the impending drivetrain failure until power is lost. First signs of a problem: Late August 2025 First loss of motive power incident: Early October 2025 Second loss of motive power incident: [XXX] Initial Dealer Report: October 28, 2025 (MetroWest Acura) Confirmation video from Acura of Boston: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)