Transfer case with Autotrac and rotary control

  • You have the the option of either convenient Autotrac (for traction as needed) or do-it-yourself control (for choosing the drive mode you want, as conditions demand)
  • A simple twist of a dial shifts the transmission between 2WD High (for minimum wear and tear in everyday situations), Auto (for letting sensors determine your traction needs), 4WD High (for extra traction on snow and ice), 4WD Low (for maximum 4-wheel power and extra torque in the toughest situations) and Neutral (for towing your Sierra).

This feature requires 4WD models.