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GMC
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2022
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Terrain SLT, FWD
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures (1 Of 2)
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Diagnostic Information and Procedures
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DTC P0815, P0816, or P0826 (without EPH)
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DTC Descriptor
DTC Descriptor
DTC P0815
Upshift Switch Circuit
DTC P0816
Downshift Switch Circuit
DTC P0826
Up and Down Shift Switch Circuit