Used GMC Sierra 1500 for Sale nearGreat Falls, MT

How much does the GMC Sierra 1500 cost in today's market?

Used GMC Sierra 1500 prices span a wide range depending on model year. Here's what the market looks like right now:

The GMC Sierra 1500's current nationwide average price is $40,512, and its year-round low is $38,607.92. That gives you a useful snapshot of where this model sits today across the years in the data.

Recently, prices have come down for the 2023, 2024, and 2025 models, making now a good time to shop recent model years.

Is the GMC Sierra 1500 a good car?

Yes — the GMC Sierra 1500 earns strong owner approval across its long run, and the all-generations owner rating is 4.46/5 across every model year in the data.

Owners consistently praise the Sierra 1500 for its powerful performance, spacious and comfortable interior, and impressive towing capability. They also frequently highlight its stylish design, upscale feel, and useful feature set, which help it work well as both a daily driver and a truck for family or job-site use.

Expert reviews rate the 2020 and 2018 models among the highest across all years.

The main trade-offs show up in fuel economy, pricing, and some feature availability on certain years, especially when you move into more expensive trims and newer examples. Even so, the Sierra 1500 remains a compelling used full-size pickup if you want capability with a more premium presentation.

28.9% of listings are priced as good or great deals.

Are GMC Sierra 1500 models reliable?

Owners consistently describe the Sierra 1500 as a comfortable, capable truck with strong performance and a roomy cabin. The strongest feedback also points to smooth ride quality, useful features, and a premium-feeling interior across many model years.

• Owners rate the GMC Sierra 1500 between 4.15 and 5.0 out of 5 stars across all model years in the data.

For used buyers, long-term ownership risk is best managed by checking service history carefully, especially on older trucks where transmission and other mechanical concerns appear in the model’s history.

What should I look for when buying a used GMC Sierra 1500?

Across all model years, accident-free inventory is solid at 84.6% — always verify the vehicle history report.

Older model years carry meaningfully higher accident rates, so always verify the vehicle history report on pre-2020 models.

Key things to evaluate:

• Safety package: automatic emergency braking with pedestrian detection, forward collision warning, lane-keep assist, lane-departure warning, and a rear-seat reminder
• Infotainment: a 7-inch touchscreen with Bluetooth and wired Apple CarPlay and Android Auto smartphone connectivity; SLE and higher models add a 12.3-inch digital instrument cluster and a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto, as well as Google Built-In features
• Fuel efficiency: the Duramax diesel is EPA-rated at 25 mpg combined with RWD and 24 mpg combined with 4WD; the TurboMax four-cylinder engine will achieve 20 mpg combined in some configurations

Which GMC Sierra 1500 trim should I buy?

The 2024 GMC Sierra 1500 offers these trims:

• Pro: the entry point, aimed primarily at commercial fleets, with a 7-inch touchscreen, Bluetooth, and wired Apple CarPlay and Android Auto
• SLE: the best-value trim for many shoppers, adding a 12.3-inch digital instrument cluster, a 13.4-inch touchscreen, wireless Apple CarPlay and Android Auto, and Google Built-In features
• Elevation: a style-focused step up that builds on the SLE’s tech and adds a bolder look
• SLT: a more upscale choice that moves you further into comfort and convenience
• AT4: the off-road model with a 2-inch lift kit, Rancho monotube shocks, a locking rear differential, and skid plates
• AT4X: the more serious off-road trim, adding a front locker and more sophisticated Multimatc DSSV dampers
• Denali: the luxury-oriented trim with a large chrome grille, available 22-inch wheels, power running boards, and premium cabin features
• Denali Ultimate: the top luxury trim, adding the most premium presentation and comfort features, including heated, ventilated, and massaging front seats

What GMC Sierra 1500 do most buyers choose?

The GMC Sierra 1500 years with the most listings are 2024, 2023, and 2025.

These higher-volume years tend to be popular because they give you a broad mix of availability, newer features, and competitive pricing. They also make it easier to compare trims and find the configuration that fits your needs.

What is the GMC Sierra 1500's resale value?

Most model years in the table are down year over year, which is good news if you’re shopping used because it creates more room to find value. The newest years show the steepest drops, while the older trucks move down more slowly. That pattern gives you a wider spread of price points to choose from depending on how much equipment and age you want to balance.

The 2014, 2015, and 2016 model years have held their value best, with the smallest year-over-year price changes.

Is the GMC Sierra 1500 safe?

• 2024: 6/10
• 2023: 9/10
• 2022: 7/10
• 2021: 4/10
• 2020: 8/10
• 2019: 8/10
• 2018: 9/10
• 2015: 7/10
• 2014: 9/10

The 2024 Sierra 1500 includes automatic emergency braking with pedestrian detection, forward collision warning, lane-keep assist, lane-departure warning, and a rear-seat reminder as standard safety equipment. Denali and Denali Ultimate models can also be equipped with Super Cruise, GM’s hands-free driver-assistance system.

For the safest used buy, the 2014, 2018 and 2023 models all post the highest confirmed score of 9/10.

Should I buy a used GMC Sierra 1500 now or wait for the next model?

Buy now if:

• Price trend: The 2025 model is at −11.83% versus a year ago, and the 2024 model is at −11.08%.
• Deal availability: The 2025 model has 30.1% good and great deals, and the 2024 model has 30.6%.
• Sweet-spot year: The 2024 model has the most listings at a current average price of $48,900. The GMC Sierra 1500 offers a broad trim range, upscale cabin presentation, and strong towing-oriented capability that make it easy to tailor to your needs.

Consider waiting if:

• Powertrain/efficiency: Base models get a 2.7-liter turbocharged four-cylinder engine dubbed TurboMax that produces 310 horsepower and 430 pound-feet of torque. The available 6.2-liter V8 makes 420 hp and 460 lb-ft, while the Duramax turbodiesel 3.0-liter inline-six produces 305 hp and 495 lb-ft.
• Tech: SLE and higher models get a 12.3-inch digital instrument cluster and a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto, as well as Google Built-In features.
• Safety: Denali and Denali Ultimate models can also be equipped with Super Cruise, GM’s hands-free driver-assistance system.
• Starting price: Pricing starts at $39,595 for a base Pro model with RWD and no frills.

If you're buying used today, the 2024 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for 2028 inventory to mature.

These recommendations are based on CarGurus' proprietary market data from August 28, 2026, CarGurus experts' opinions, and generative AI.

Compare 2018 GMC Sierra 1500 Trims

The 2018 GMC Sierra 1500 offers a range of trims from budget-friendly options to fully loaded models, all featuring a capable V6 engine.

• Starting at $16,319
• Best MPG/MPGe: 18 city / 24 hwy
• Most Popular: SLE

Trim Overview

Prices updated weekly from CarGurus listings.

Quick Compare Table

Listing prices sourced from CarGurus — updated weekly. OEM specs from manufacturer data.

Missing data displayed as "—".

Trim Deep Dives

Base — "Who It's For"

The Base is the pick for shoppers who want essential features without paying for extras. It's the most budget-friendly option in the lineup.

• Avg. market price: $16,319 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 598 listings
• View Base listings

SLE — "Who It's For"

The SLE is the pick for shoppers who want a well-equipped truck without going for the highest trim. It's the most popular choice among buyers.

• Avg. market price: $26,683 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 2,407 listings — widest selection in the lineup
• View SLE listings

Trim Recommendations

Most Popular — SLE

With 2,407 active listings, the SLE is the clear volume leader in the lineup.

Browse SLE listings

Best Budget Option — Base

At $16,319 avg market price — below the lineup median of $21,501 — it's the most accessible entry point.

Browse Base listings

These recommendations are based on CarGurus' proprietary market data from September 2, 2026, CarGurus experts' opinions, and generative AI.