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  • Interior image of the 2018 GMC Sierra 3500 Denali HD premium heavy-duty truck.
    8" diagonal GMC Infotainment System with Navigation1 is standard on the Sierra 3500 Denali HD
  • Interior image of the 2018 GMC Sierra 3500 Denali HD premium heavy-duty truck.
    The 2018 Sierra 3500 Denali HD’s safety and driver alert technologies, like Forward Collision Alert help prepare you for the unexpected.
  • Interior image of the 2018 GMC Sierra 3500 Denali HD premium heavy-duty truck.
    Easy-to-reach controls for safety and convenience features (Shown with available features)
  • Interior image of the 2018 GMC Sierra 3500 Denali HD premium heavy-duty truck.
    Sierra 3500 Denali HD with Jet Black interior
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8" diagonal GMC Infotainment System with Navigation1 is standard on the Sierra 3500 Denali HD