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Home >> Buick >> 2019 >> Regal TourX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 155 (Automatic Transmission - 9T50 (M3D) And 9T60 (M3T) - Description And Operation) >> Description and Operation >> Reverse (Hydraulic Circuits) >> Notes

Reverse (Hydraulic Circuits): Notes

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

When the gear selector is moved to the Reverse (R) position (from the Park position) the 5-7 reverse solenoid and clutch select control solenoid is commanded ON and the 1 reverse & 6-7-8-9 solenoid is commanded OFF and the following changes occur in the transmission's hydraulic and electrical systems: