Fiat Chrysler shifter woes continue: Ram, Dodge rotary knob investigated for rollaway risk NHTSA probes crashes of Dodge Durango and Ram 1500 trucks By Jay Ramey Published: Dec 20, 2016 Save Article ...

At issue were electronic dial-like rotary gear selector knobs that were new at the time and different from previous mechanical shifters that used a lever to select gears.

Previously, mechanical shifters used a lever to select gears. On the rotary shifter, the driver turns the knob. There's a catch to click into the next gear.