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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0776 or P0777: Transmission Control Solenoid Valve 2 Stuck >> DTC Descriptors

DTC Descriptors

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

The DTCs listed below set due to a transmission hydraulic/mechanical condition. Perform the Circuit/System Verification and Circuit/System Testing to identify the cause.

DTC P0776

Transmission Control Solenoid Valve 2 Stuck Off - The 1-2-3-4-5-Reverse Clutch did not apply due to a hydraulic/mechanical condition.

DTC P0777

Transmission Control Solenoid Valve 2 Stuck On - The 1-2-3-4-5-Reverse Clutch did not release due to a hydraulic/mechanical condition.