New 2025 Gmc Sierra 2025 Denali Hd. The denali trim moves to second place in the sierra hd’s hierarchy for the 2025 model year with the introduction of the new denali ultimate trim, available for both. The 2025 gmc sierra hd features two new trims designed to boost the truck’s appeal (and sticker price):

See the complete list of 2025 gmc sierra hd updates,. The new 2025 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate.