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Home >> GMC >> 2020 >> Acadia SL >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3H), 9T60 (M3G) Or 9T65 (M3W M3V) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P27A7-P27AE >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair : Diagnostic Repair Verification

For control module replacement, programming, and setup refer to : Control Module References

Additional Procedures 

Transmission Service Fast Learn Procedure - Perform only when the component/system is serviced.

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