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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6T30 (MH9) Or 6T40 (MH8) - Description And Operation >> Description and Operation >> Drive Range, Fifth Gear Default (Gen 1) >> 1-2-3-4 Clutch Releases

1-2-3-4 Clutch Releases

1234 Pressure Control (PC) Solenoid 5 

If the transmission is in First, Second, Third or Fourth gear when an electrical condition commands a protection mode, the 1234 PC solenoid 5 defaults to its normally-low state (OFF), allowing PCS 1234 clutch fluid pressure to exhaust and the 1-2-3-4 clutch to release.