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Home >> Hummer >> 2008 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> Road Test >> Coasting Downshifts

Coasting Downshifts

  1. Place the gear selector in the DRIVE position.
  2. Accelerate the vehicle to 6th gear with the TCC applied.
  3. Release the throttle and apply the brakes
  4. Verify the following:
    • The TCC releases (on most applications).
    • Downshifts occur as commanded.
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