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This all-new system allows the driver to choose from preset drive modes that have been tailored for different terrain or weather conditions. It adjusts Sierra’s transmission shift points, throttle mapping and StabiliTrak to optimize performance for the situation. The available modes in the Traction Select System are:

  • Tour
  • Sport
  • Off-Road (with Technology Package)
  • Tow/Haul
Learn more about Sierra AT4’s Traction Select System on GMC LIFE.