Used 2021 GMC Sierra 2500HD for Sale near Nova Scotia
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CarGurus Analysis: 2021 GMC Sierra 2500HD
Summary
With 73 currently listed for sale and an average price of $59,869.00 CAD, 26.0% 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 5 / 5 stars.
100.0% of 2021 Sierra 2500HD models on CarGurus are accident free.
Why it stands out
The 2021 GMC Sierra 2500HD stands out as a heavy-duty pickup that leans into a more upscale personality than many rivals. In Canada, it was offered in Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate trim levels, with the Denali trims adding luxury cabin features and the AT4 models bringing off-road hardware and accessories such as skid plates, off-road suspension upgrades, and a more robust transfer case. It was also available in Regular Cab, Crew Cab, and Double Cab body styles, paired with 7' or 8'2" cargo bed options, which gives buyers a broad spread of work-focused and premium configurations.
Equipment is a major part of the appeal. The Sierra 2500HD was refreshed for the 2024 model year, and the truck’s infotainment system could include Bluetooth, Android Auto, Apple CarPlay, and Wi-Fi hotspot accessibility. Available features also included remote keyless entry and rear-seat reminders, while higher-end versions could be fitted with a Bose premium audio system, power-adjustable front seats, chrome grille trim, dual-zone automatic climate control, and power-folding tailgate options. Under the hood, it came with a 6.6-litre V8 gas engine paired with a six-speed automatic transmission, and it was also available with a 6.6-litre Duramax turbodiesel V8 engine and a 10-speed automatic transmission from Allison; rear- and four-wheel drive were both available.
Like many used heavy-duty trucks, the 2021 GMC Sierra 2500HD has strengths that are easy to appreciate but also some issues worth checking carefully. The generation is known for problems including illuminated check engine lights caused by diesel particulate filters or emissions sensors, sluggish infotainment responses, rough or delayed shifts, electrical system glitches, flaws in the MultiPro tailgate, and faulty trailer brake controllers. Even so, its wide trim range, upscale options, and mix of comfort and capability make it a distinctive choice for buyers who want a heavy-duty truck that can work hard without feeling stripped down.
Other model years to consider
- Average price: $92,317.00 CAD
- Good/great deal percentage: 25.8%
- User rating: 5 / 5
- Total listings: 132
- Average price: $79,622.00 CAD
- Good/great deal percentage: 23.6%
- User rating: 4 / 5
- Total listings: 161
- Average price: $67,414.00 CAD
- Good/great deal percentage: 24.1%
- User rating: 4 / 5
- Total listings: 158
This analysis is based on CarGurus' proprietary market data from August 6, 2026, CarGurus experts' opinions, and generative AI.
5.0 Overall rating
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Allan K
Reviewed a 2021 GMC Sierra 2500HD on Jan 18, 2021
-Excellent trailering mirrors with lights, allow increased visibility when backing up at night -Engine noise is relatively quiet compared to older diesel pick ups, can order at fast food drive throughs without shutting engine off -Fuel economy is good for a vehicle of this size (I have 3500HD, not 2500HD) -Driver safety features and various camera views are very helpful -Trim version for this review is Denali, with power running boards, really not missing anything significant
Anonymous
Reviewed a 2021 GMC Sierra 2500HD on Sep 3, 2022
An absolutely beautiful pickup ! Handles & rides exceptionally well !! Nobody will regret making the decision to purchase this awesome truck .
jordyn c
Reviewed a 2021 GMC AT4 Crew Cab 4WD on Dec 4, 2023
This car is not missing nothing at all it is perfect
Kevin K
Reviewed a 2021 GMC Sierra 2500HD on Apr 21, 2022
So far we are very happy.We appreciate the options and layout
2021 GMC Sierra 2500HD Trims
| Trim type | MSRP |
|---|---|
| AT4 Crew Cab 4WD | $59,100 |
| Double Cab 4WD | $41,600 |
| SLT Crew Cab 4WD | $56,200 |
| Base Crew Cab 4WD | $43,400 |
| SLE Crew Cab 4WD | $48,200 |
| Denali Crew Cab 4WD | $65,500 |
2021 GMC Sierra 2500HD Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2021 GMC Sierra 2500HD prices has changed over time.
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