Summary

• With 4,210 currently listed for sale and an average price of $74,367.00, 31.3% of 2025 GMC Sierra 2500HDs for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2025 GMC Sierra 2500HD 5 / 5 stars.

• 94.2% of 2025 Sierra 2500HD models on CarGurus are accident free.

Why it stands out

The 2025 GMC Sierra 2500HD stands out as a heavy-duty pickup that leans more upscale than many rivals. GMC offers it in more trim levels than the related Chevy Silverado 2500HD, with a wider range of upscale options and features, and the Denali and Denali Ultimate trims are described as more luxurious than the Silverado’s top-tier High Country trim. For buyers who want a work-capable truck that can still feel well equipped, that broader spread of comfort and premium touches is a major part of its appeal.

It also brings a strong mix of technology and capability. The Sierra 2500HD is available with Bluetooth, Android Auto, Apple CarPlay, and wifi hotspot accessibility through the GMC infotainment system, while higher trims can add a Bose Premium audio system, power-adjustable front seats, chrome grille trim, dual-zone automatic climate control, and power-folding tailgate options. For 2025, GMC made the trailer brake controller standard across all trims and widened the availability of adaptive cruise control and front and rear park assist. The truck is offered with a 6.6-liter V8 gas engine and a 6.6-liter Duramax turbodiesel V8, along with rear- and four-wheel drive, and it comes in Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate trims.

There are tradeoffs to consider, though. The AT4 models add off-road hardware and accessories such as skid plates, off-road suspension upgrades, and a more robust transfer case, but the truck’s high MSRPs when new are noted as a drawback. Used shoppers should also be aware that fourth-generation Sierra 2500HD models have had a number of reported problems, including check engine lights, infotainment sluggishness, rough or delayed shifts, electrical glitches, MultiPro tailgate issues, and faulty trailer brake controllers.

Other model years to consider

• 2024 GMC Sierra 2500HD

  • Average price: $68,072.00
  • Good/great deal percentage: 31.3%
  • User rating: 4 / 5
  • Total listings: 4,212

• 2021 GMC Sierra 2500HD

  • Average price: $51,157.00
  • Good/great deal percentage: 30.0%
  • User rating: 5 / 5
  • Total listings: 1,696

• 2020 GMC Sierra 2500HD

  • Average price: $49,600.00
  • Good/great deal percentage: 28.6%
  • User rating: 4.86 / 5
  • Total listings: 1,137

This analysis is based on CarGurus' proprietary market data from August 6, 2026, CarGurus experts' opinions, and generative AI.