Learn A Smooth 4-3 COASTDOWN And Part Throttle 4-3 KICKDOWN

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The transmission oil temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the UD shift volume.

At a vehicle speed between 64-97 km/h (40-60 MPH), perform repeated 4-3 kickdown shifts.
Repeat step 1 until the UD volume becomes somewhat stable and the shift becomes smooth.