GMC Dealer Inventory Increases In January 2025

Moving in sync with typical seasonal market trends, the inventory of new GMC vehicles on dealer lots increased in January 2025, rising sharply to an 86 days supply from the near-optimum 70 days supply Big Red registered a month previously in December 2024.

As revealed by Cox Automotive research, GMC inventory is still lower than the U.S. national dealership average of a 96 days supply of new vehicles in January 2025.

A year ago, GMC inventory was approximately equal to current levels, with an 83 days supply in January 2024. The same seasonal pattern was visible at the time, with an early-year uptick as sales slowed following the December vehicle-buying surge that generally occurs each year. The current 86 days supply means dealerships have enough stock for 86 days of selling at current rates. Inventory amounting to a 60 days supply is considered optimal in the industry.

Turning to individual models, the GMC Hummer EV once again has the highest inventory in terms of days supply among the brand’s lineup. The Hummer tends to be a slower-selling model, likely also true for the GMC Sierra EV, the other model with high January inventory. Meanwhile, the GMC Savana, GMC Yukon and GMC Acadia all had lower than average inventory among Big Red’s offerings.

The brand’s inventory is showing general conformation to the auto market as a whole. Days supply surged by 26 percent in January 2025 as an average across the market, while sales fell 25 percent compared to the vigorous performance in December. These changes are typical of a “January lull” as post-holiday spending contracts and cold, snowy weather disrupts sales.

However, the early 2025 auto market still shows more early-year life than was the case a year ago. Sales are still 7.1 percent higher than in January 2024, showing the exceptional surge in vehicle purchases at the end of 2024 hasn’t lost all its momentum. Inventory is also up 14.2 percent. Cox executive analyst Erin Keating remarked that current sales and inventory trends give “the dealers confidence in the market and consumers freedom of choice of vehicle.”

The total number of new vehicles in inventory increased a narrow 1.2 percent between New Years’ 2025 and the start of February, rising to 2.92 million vehicles. Meanwhile, average transaction price (ATP) fell as less luxury vehicles sold, once again mirroring typical vehicle sales patterns.