for safety; but that it is overreacting to minor resistance variations from other causes. Originally Chrysler dealers claimed that the loss of neutral and low ratio following the recall was a coincidence; then it claimed that the revised software was revealing pre-existing faults in the system, despite it occurring even with new parts. Chrysler has also claimed that only a small fraction of cars have issues following the recall; but most users never have occasion to use the low ratio and may never discover the fault. Four years after this recall its issues remain unresolved. Transmission parking pawl In April 2016, the National Highway Traffic Safety Administration (NHTSA) ordered a recall of 2014 and 2015 Jeep Grand Cherokees and other cars that use an electronic gear shifter because it sometimes does not go into (or does not remain in) the park position, despite the operator's best intentions. Consumers reported that they put the car in park and left the engine running, and then were surprised when the car rolled away under power. An investigation by FCA US and the National Highway Traffic Safety Administration found some drivers have exited their vehicles without first selecting "PARK." Such behavior may pose a safety risk if a vehicle's engine is still running. The company is aware of 41 injuries that are potentially related. It was also the cause of actor Anton Yelchin's death. The vehicles involved in these events were inspected and no evidence of equipment failure was found. The vehicles also deliver warning chimes and alert messages if their driver-side doors are opened while their engines are still running and "PARK" is not engaged. However, the investigation suggested these measures may be insufficient to deter some drivers from exiting their vehicles without selecting "PARK," so FCA US will enhance the warnings and transmission-shift strategy on these vehicles. The enhancements will combine warnings with a transmission-shift strategy to automatically prevent a vehicle from moving, under certain circumstances, even if the driver fails to select "PARK." The final fix was Safety Recall S27 / NHTSA 16V-240, a software update that adds an "auto park" feature that will automatically put the vehicle in park if the driver's door is opened and the driver seatbelt is unlatched while the vehicle is stopped or moving slowly. Jeep has now replaced the shifter with a conventional lever which stays in position for late-2016 models. Other recalls In July