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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2820 or P2821 >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2820

Transmission Control Solenoid Valve 9 Stuck Off

DTC P2821

Transmission Control Solenoid Valve 9 Stuck On

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