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gmc Workshop Repair Guides

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Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP
values. Transmission performance may be affected as new TAP values are learned.

13. Reset the TAP values. Refer to Transmission Adaptive Functions   (See: Description and Operation/4L60-E/4L65-E/4L70-E - Automatic

Transmission/Transmission Adaptive Functions).

Transmission and Drivetrain > Automatic Transmission/Transaxle > Band Apply Servo, A/T > Component Information > Service and Repair > 4L60-E/4L65-E/4L70-E - Automatic Transmission > Page 4753

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