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Learn A Smooth 4-5 Upshift

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

Use the following steps to have the TCM learn the Alt 2C CVI.

  1. Accelerate the vehicle through 88 km/h (55 mph) at a steady 10-15 degree throttle opening and perform multiple 4-5 upshifts.
  2. Repeat step  1 until the 4-5 shift become smooth and the Alt 2C CVI become stable. There is a separate 2C volume used and learned for 4-5 shifts, 2CA. It is independent of the 2C CVI learned on 3-2 kickdowns.
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