NHTSA Complaint #11715553 — 2018 ACURA RDX

The vehicle has developed a serious transmission defect involving harsh shifting, delayed engagement, and repeated slipping into neutral while driving. Since picking the vehicle up from Key Acura after an inspection, the condition has worsened significantly. The “Check Engine” light, the flashing “D” indicator, and the transmission warning light are now consistently illuminated. Prior to the dealer visit, these warning lights were intermittent; they are now on at all times. The vehicle can unexpectedly lose propulsion or fail to accelerate, which creates a safety risk during normal driving, especially when merging, crossing intersections, or turning. The symptoms are consistent with the known torque converter and transmission issues documented in Acura Service Bulletin 23‑029, which applies to 2017–2018 RDX models. The dealer inspected the vehicle but did not perform repairs, and the drivability and safety concerns have become more severe since the visit. Acura/Honda Client Relations has been contacted and a case is open, but no resolution has been provided. This defect poses a significant safety concern due to the sudden loss of power while the vehicle is in motion.