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Home >> GMC >> 2020 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 411 (Automatic Transmission - 9T60 (M3G) Or 9T65 (M3W) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P18A2 or P18A4 >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different car, the 2023 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
DTC P18A2

Transmission Park Inhibit Actuator Control Circuit Low Voltage

DTC P18A4

Transmission Park Inhibit Actuator Control Circuit High Voltage

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