GM unveiled the fully refreshed 2024 GMC Sierra HD in October, pulling the sheets on a long list of changes and updates for the heavy-duty pickup. Now, we’re getting our first look at the refreshed 2024 GMC Sierra HD Denali out in the real world with the following GM Authority photos.
For those readers who may be unaware, the 2024 GMC Sierra HD Denali is now the penultimate trim level in the lineup, slotting in below the new-for-2024 range-topping Denali Ultimate with regard to the trim level cadence. This particular 2500 HD model presents the Crew Cab / Short Bed SRW body style covered in White Frost Tricoat paint (paint code G1W), giving it a crisp, clean look in conjunction with the black trim bits and chrome detailing.
Up front, we spot the 2024 GMC Sierra HD Denali’s reworked grille design, which adorns the revised fascia with a polished finish. The headlights were also restyled for the 2024 model year, and now incorporate an angled L-shaped design for the lighting signature, as opposed to the C-shaped signature seen on Sierra HD models prior to the refresh. The lower bumper was reworked as well, and now incorporates a flatter, straighter layout, plus new lower lighting elements. The tow hooks and lower styling bits continue the chrome theme.
Moving into the flanks, we find power-adjustable and power folding / extending vertical trailering mirrors (RPO code DZC), which are matched with chrome mirror caps (RPO code DP9) to complement the rest of the polished bits on the body. Lower in profile, we find chromed tubular 6-inch rectangular cab length assist steps (RPO code BVQ), while the door handles are also done in chrome (RPO code W20). Sitting in the corners is a set of new-for-2024 20-inch Ultra-bright machined aluminum wheels.
As for the bits we can’t see, the 2024 GMC Sierra HD is equipped with the naturally aspirated 6.6L V8 L8T gasoline engine as standard, as well as the 6.6L V8 L5P turbodiesel Duramax engine, the latter of which was uprated with the refresh and now produces a maximum of 470 horsepower and 975 pound-feet of torque. Both engines now connect to the Allison-branded 10-speed automatic transmission, which replaces the GM six-speed automatic mated to the gasoline-powered L8T engine prior to the refresh.
Look for the 2024 GMC Sierra HD to hit production in Q1 of the 2023 calendar year.