Learn A Smooth 4-3 Coastdown and Part Throttle 4-3 Kickdown

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.

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