2025 Gmc 2500hd Denali Ultimate Review. The 2025 gmc sierra 2500 hd comes in seven trims โ pro, sle, slt, at4, denali, at4x and denali ultimate. Read our comprehensive review for insights.
Gmc sierra 2500hd denali finally gets a luxurious interior. The sierra hds get a revised front fascia with newly available led headlights and taillights with sequential turn signals.