Procedure To Learn A Smooth 2-3 & 3-4 Upshift

WARNING: This page does not describe the selected car, but rather 120 other vehicles, including the 2002 Saturn Vue, 2002 Saturn SL2, 2002 Saturn SL1, 2002 Saturn SL, and 2002 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the OD and 4C Clutch Volume Index (CVIs).

Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple 1-2, 2-3 and 3-4 upshifts. The 2nd 2-3 shift following a restart or shift to Reverse will be shown during the shift as a value between the 1st 2-3 OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into 3rd gear, following a restart or shift to Reverse.
Repeat step 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.