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U.S. MODEL SHOWN
2020 GMC Sierra AT4 Prograde Trailering Update.

Enhance your trailering experience with the Prograde™ Trailering System. This suite of intelligent technologies can provide confidence when hitching and towing with features including:

  • In-Vehicle Trailering App† with custom trailer profiles, trailer status including tire pressure and temperature monitoring and more
  • Phone Companion App†, myGMC® Mobile APP† adding convenience when you’re outside the truck or trailer
  • Trailer Light Sequence, which includes automatic lighting test sequence