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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (Automatic Transmission - ALLISON - Service, Diagnosis & Troubleshooting) >> Road Test Procedure >> Coasting Downshifts

Coasting Downshifts

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  1. Place the shift selector in DRIVE.
  2. Accelerate the vehicle to FIFTH range with the TCC applied.
  3. Release the throttle and lightly apply the brakes.
  4. Verify the following conditions:
    • The TCC releases.
    • Downshifts occur in normal sequence and the transmission returns to FIRST range before the vehicle comes to a stop.