2026 GMC Terrain Denali in Sioux Falls, SD | Billion Buick GMC

The 2026 GMC Terrain Denali is available for purchase at Billion Buick GMC in Sioux Falls, South Dakota, as of April 12, 2026.

Pricing for a specific 2026 GMC Terrain Denali unit at the dealership is listed with a final price of $43,039. This figure is derived from a manufacturer’s suggested retail price (MSRP) of $44,390, with an additional $399 in dealer-added accessory fees.

The final sale price includes several credits, including $1,000 in Buick GMC Bonus Cash and $750 from the GMC GMF Bonus Cash Program. The dealership also notes that a documentation fee of $249 is charged.

2026 GMC Terrain Model Details

The 2026 model year of the GMC Terrain features three distinct trim levels. These include the luxury-oriented Denali trim and the AT4 trim, which is focused on off-road capabilities.

Market data for new GMC Terrain vehicles in the Sioux Falls area indicates a broader price range for the model, with some vehicles listed between $34,030 and $42,901, including the AT4 and Denali versions.

Dealership Operations and Accessibility

Billion Buick GMC operates as a new and used car and truck dealership. The facility is located in Sioux Falls and is accessible via I-29 and I-229.

The dealership provides vehicles and services to several regions, including:

• Sioux Falls, South Dakota
• Brandon, South Dakota
• Brookings, South Dakota
• Madison, South Dakota
• Sioux City, Iowa

In addition to new inventory, the dealership offers a Certified Pre-Owned vehicle program intended to provide a benefits package beyond those available with standard used vehicles.