Used 2018 GMC Sierra 1500 for Sale near Saint John, NB
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Sponsored by MacDonald Buick GMC Cadillac
CarGurus Analysis:
2018 GMC Sierra 1500
With 461 currently listed for sale and an average price of $26,278.00 CAD, 26.9% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
100.0% of 2018 Sierra 1500 models on CarGurus are accident free.
CarGurus Analysis: 2018 GMC Sierra 1500
Summary
With 461 currently listed for sale and an average price of $26,278.00 CAD, 26.9% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favourably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
100.0% of 2018 Sierra 1500 models on CarGurus are accident free.
Why it stands out
The 2018 GMC Sierra 1500 stands out as a full-size pickup that leans more upscale than many rivals while still delivering the capability buyers expect from a truck. In this generation, GMC’s approach is to give the Sierra a near-luxury cabin feel without piling on unnecessary frills, and the truck’s appeal is built around that balance of refinement, practicality, and strength. It also offers a wide range of trims, from work-focused versions to more premium and off-road-oriented choices, which helps it suit very different kinds of buyers.
For 2018, the Sierra 1500 could be had with a broad engine lineup that included a 2.7-litre turbocharged four-cylinder, a 4.3-litre V6, a 5.3-litre V8, a 6.2-litre V8, and a 3.0-litre inline-six Duramax turbodiesel. Transmission choices varied by engine and included six-, eight-, and 10-speed automatics, with rear- and four-wheel drive available. The truck’s trim range also gave it real personality: Denali and Denali Ultimate focused on luxury, while AT4 and AT4X added rugged styling and off-road hardware. The AT4X in particular went further with skid plates, beefed-up dampers, all terrain tyres, and 16-way power heated and ventilated front seats with a massage feature.
There are a few reasons shoppers may still want to approach this generation carefully. The Sierra 1500 is known to be pretty reliable overall, but the model line has had problem years, and used examples can be expensive. Even so, the 2018 Sierra 1500 remains appealing because it combines strong towing ability, good connectivity features, and a premium-leaning interior with enough variety to cover everything from daily driving to serious work use.
Other model years to consider
- Average price: $66,788.00 CAD
- Good/great deal percentage: 34.9%
- User rating: 5 / 5
- Total listings: 1,449
- Average price: $48,412.00 CAD
- Good/great deal percentage: 31.3%
- User rating: 5 / 5
- Total listings: 773
- Average price: $56,685.00 CAD
- Good/great deal percentage: 34.1%
- User rating: 4.64 / 5
- Total listings: 1,530
This analysis is based on CarGurus' proprietary market data from August 6, 2026, CarGurus experts' opinions, and generative AI.
4.5 Overall rating
Filter by rating
Ryan A
Reviewed a 2018 GMC Sierra 1500 on Aug 5, 2025
Only thing i didn’t like is the gas mileage. Mine is slightly lifted though and averages about 13 miles to the gallon
Edward E
Reviewed a 2018 GMC Sierra 1500 on Feb 28, 2020
2018 GMC Sierra. Simply the best driving & riding truck I have ever owned. The magnetic ride sets it apart and was the reason I purchased a 2018 vs the newer body style without it. It’s also the reason I choose it over similar Ford and Dodge trucks.
Anonymous
Reviewed a 2018 GMC Sierra 1500 on Mar 3, 2021
very luxurious and drives incredible smooth.. Wouldnt know its a pickup truck
Jason J
Reviewed a 2018 GMC Sierra 1500 on Aug 20, 2022
Great truck, but not liking this heavy shudder from the torque converter.
2018 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| SLT Double Cab 4WD | $46,000 |
| Base | $29,000 |
| Base Crew Cab 4WD | $38,700 |
| SLE Double Cab 4WD | $42,100 |
| Base Double Cab 4WD | $37,000 |
| Denali Crew Cab 4WD | $56,000 |
| SLT Crew Cab 4WD | $48,400 |
| SLE Crew Cab 4WD | $44,700 |
2018 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Sierra 1500 prices has changed over time.
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