Used 2021 GMC Sierra 2500HD for Sale near Waterloo, ON

## Summary - With 59 currently listed for sale and an **average price of $60,701.00 CAD**, 35.6% of 2021 GMC Sierras 2500HD for sale on CarGurus are rated as good or great deals. - **Favourably reviewed:** Owners rated the 2021 GMC Sierra 2500HD 4.69 / 5 stars. - **100.0% of 2021 Sierra 2500HD models on CarGurus are accident free**. ## Why it stands out The 2021 GMC Sierra 2500HD is a notable contender in the heavy-duty pickup truck segment, appreciated for its upscale design and robust performance. With a focus on “Professional Grade” qualities, this truck offers many of the same advanced technology and comfort features found in the Sierra 1500, distinguishing it from competitors like the Ram heavy-duty trucks, which lack similar connectivity options. The Sierra 2500HD is famous for its range of luxury trims, including the Denali, which provides an elevated driving experience. Additionally, the latest models are equipped with impressive safety features and a substantial suite of amenities, making them highly attractive to buyers in the market for a heavy-duty vehicle. However, potential buyers should be aware of the generational complexities and some reported issues in earlier models, ensuring they choose carefully among the lineup. ## Other model years to consider - **[2025 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2025-GMC-Sierra-2500HD-c33462)** - Average price: $98,559.00 CAD - Good/great deal percentage: 21.9% - User rating: 5 / 5 - Total listings: 96 - **[2023 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2023-GMC-Sierra-2500HD-c32421)** - Average price: $74,513.00 CAD - Good/great deal percentage: 24.1% - User rating: 4.33 / 5 - Total listings: 116 - **[2024 GMC Sierra 2500HD](https://www.cargurus.ca/Cars/l-Used-2024-GMC-Sierra-2500HD-c32774)** - Average price: $77,353.00 CAD - Good/great deal percentage: 18.2% - User rating: 3.86 / 5 - Total listings: 121 This analysis is based on CarGurus' proprietary market data from March 23, 2026, CarGurus experts' opinions, and generative AI.