2024 Gmc Sierra 2024 Hd At4x Interior. The gmc sierra hd was revised for the 2024 model year, and received a bevy of enhancements to the exterior, interior and powertrain specifications. The first ever sierra hd at4x and at4x aev edition is taking the at4 experience to the next level.
View photos of the 2024 gmc sierra hd. The 2024 gmc sierra hd features two new trims designed to boost the truckโs appeal (and sticker price):