A hard shift can result from an electronic control problem, a hydraulic concern, or internal wear. A damaged mount or another drivetrain component can also make an otherwise normal shift feel unusually harsh.
Some vehicles change shifting behavior when cold, towing, or operating in a selected drive mode. A new or worsening change still deserves attention, especially with a warning light.
Tell Certified Transmission in Council Bluffs which shifts feel harsh and whether the concern changes as the vehicle warms up. Those details help guide testing.