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Home >> Chevrolet >> 2012 >> Tahoe PPV >> Repair and Diagnosis >> External Pages >> Different car >> Section 1023 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information and Procedures >> Road Test >> Manual Downshifts

Manual Downshifts

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Manual downshift testing is not required for vehicles equipped with Driver Shift Control (DSC). The TCM and shift solenoids will automatically override DSC downshifts to protect the transmission from damage.

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