Why ford ranger diesel push start It has manual transmission.?

A Ford Ranger diesel with a push-button start and a manual transmission isn't inherently contradictory. The push-button start system (which is often part of a keyless entry system) simply replaces the traditional ignition key with a button. The engine starting mechanism itself is separate from the transmission type. The button activates the starting system; the clutch and gear selection are still handled manually as with any other manual transmission vehicle.