The 2026 GMC Sierra HD features some minor changes over the outgoing 2025 model, with highlights such as the elimination of a number of different rear-wheel-drive model configurations. Additionally, buyers get several new options in terms of exterior color palette. Now, GM Authority is taking a closer look at the 2026 GMC Sierra HD in the new Glacier White Tricoat paint color.
The Glacier White Tricoat is marked with color code G4J and touch-up paint number WA-241L, and is available for the Sierra HD SLT, Denali, and Denali Ultimate trim levels. Price is set at $1,095. FYI, Glacier White Tricoat is not available for Sierra HD Pro, SLE, AT4, or AT4X.
Glacier White Tricoat serves as a direct replacement for White Frost Tricoat (paint code G1W), previously offered for the Sierra HD since the 2018 model year launch.
As for interior colorways, Glacier White Tricoat is available along with all interior colors offered for the 2026 Sierra HD SLT, Denali, and Denali Ultimate interior color options. As always, you can learn more about the 2026 GMC Sierra HD interior colorways by heading over to our previous coverage.
The 2026 GMC Sierra HD offers a total of nine different paint options, as we discussed previously. We’ve also listed all nine options below (relevant color codes are listed in brackets):
- Red Cardinal (G7C)
- Coastal Dunes (G42)
- Metallic Rain (GXP)
- Glacier White Tricoat (G4J)
- Black Onyx (GBA)
- Sterling Metallic (GXD)
- White Peak (GAZ)
- Titanium Rush Metallic (G6M)
- Volcanic Red Layer (GNT)
As a reminder, the 2026 GMC Sierra HD can be had with a pair of different powertrain options, starting with the naturally aspirated 6.6L V8 L8T gasoline engine, which produces 401 horsepower and 464 pound-feet of torque. Buyers can also opt for the Duramax 6.6L V8 L5P turbodiesel engine, which produces 470 horsepower and 975 pound-feet of torque.
Underneath the body panels, the Sierra HD uses a more capable variant of the GM T1 platform, while vehicle production takes place at GM’s Flint Assembly plant in Michigan.
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