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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transaxle - 4T65-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> Road Test >> Coasting Downshifts

Coasting Downshifts

  1. Place the gear selector in the OVERDRIVE position.
  2. Accelerate the vehicle to FOURTH gear with the TCC applied.
  3. Release the throttle and lightly apply the brakes.
  4. Verify the following:
    • The TCC releases
    • Downshifts occur at speeds shown in the Shift Speed table. Refer to Shift Speed .