GM Authority has learned that this week is the last chance to order a 2025 GMC Sierra 1500 truck in Thunderstorm Gray (color code GNO) exterior paint before it is retired from the truck's color ...

To start, entry-level Elevation variants are equipped as standard with either After Dark cloth (color code H6W) or Gideon Gray cloth (color code H6X). For buyers opting for the Elevation Premium ...