Used GMC Sierra 1500 for Sale near Manassa, CO

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 $40,109, and its lowest point over the past year was $38,587. 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 is a strong choice if you want a full-size pickup with broad appeal and a premium-leaning character. 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 interiors, and impressive towing capabilities. They also frequently highlight its stylish design and advanced features, which help it work well as both a truck and a daily driver.

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

The main trade-offs across recent expert-reviewed years center on value, safety feature availability, and the complexity of the lineup. Some versions also bring a lot of technology and trim content, which can make the truck feel expensive and more complicated to shop.

32.6% of listings are priced as good or great deals.

Are GMC Sierra 1500 models reliable?

Owners and experts consistently describe the GMC Sierra 1500 as a truck with strong performance, comfortable cabins, and broad capability. Across the model years in the data, it also earns praise for its smooth ride, upscale feel, and useful feature set.

• 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 most worth watching on older trucks, where transmission and other mechanical concerns show up more often in owner feedback.

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, rear-seat reminder, and available adaptive cruise control, blind-spot monitoring, rear cross-traffic alert, park assist, and Super Cruise on Denali and Denali Ultimate models
• Infotainment: a 7-inch touchscreen with Bluetooth and wired Apple CarPlay and Android Auto on base Pro models, plus a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto and Google Built-In on SLE and higher models
• Fuel efficiency: the Duramax diesel is EPA-rated at 25 mpg combined with RWD and 24 mpg combined with 4WD, while 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 fleet-oriented starting point, with a 7-inch touchscreen, Bluetooth, wired Apple CarPlay and Android Auto, and a base price that keeps it the most affordable entry into the lineup
• 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 with a more distinctive look
• SLT: a more upscale choice for buyers who want added 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 Multimatc DSSV dampers, plus the Duramax diesel as standard for 2024
• Denali: the luxury-focused trim with a large chrome grille, available 22-inch wheels, power running boards, and upscale cabin amenities
• Denali Ultimate: the top luxury trim, pairing premium comfort features such as heated, ventilated, and massaging front seats with the most upscale presentation in the lineup

What GMC Sierra 1500 do most buyers choose?

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

These higher-volume years tend to be popular because they give you the broadest mix of trims, powertrains, and price points. They also usually offer the best chance of finding the configuration you want without giving up too much selection.

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 and want more room to find value. The newer models show the steepest drops, while the older years are falling more slowly. That pattern suggests you can often get a meaningful discount on recent Sierra 1500s without waiting for a major change in the lineup.

The 2014, 2015, and 2020 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

GMC also offers a reasonable amount of standard safety features, including automatic emergency braking with pedestrian detection, forward collision warning, lane-keep assist, lane-departure warning, and a rear-seat reminder. 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 −13.37% versus a year ago, and the 2024 model is at −10.6%.
• Deal availability: The 2025 model has 34.5% good and great deals, and the 2024 model has 34.6%.
• Sweet-spot year: The 2025 model has the most listings at a current average price of $49,374. The GMC Sierra 1500 offers a broad trim range that lets you choose between work-ready utility, premium comfort, and off-road capability.

Consider waiting if:

• Powertrain/efficiency: The 2024 Sierra 1500 offers a 2.7-liter turbocharged four-cylinder with 310 horsepower and 430 pound-feet of torque, plus a Duramax turbodiesel 3.0-liter inline-six with 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 be equipped with Super Cruise, and the recently added Super Cruise active lane-change feature automatically initiates overtakes when it spots an opening.
• Starting price: Pricing starts at $39,595 for a base Pro model with RWD and no frills.

If you're buying used today, the 2025 model year offers the best mix of value and availability. If you want the latest tech and features, it may be worth waiting for the next model year's inventory to build up.

These recommendations are based on CarGurus' proprietary market data from September 22, 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 $16,733
• 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 a reliable truck without paying for extra features. It's the most budget-friendly option in the lineup.

• Avg. market price: $16,733 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 617 listings
• View Base listings

SLE — "Who It's For"

The SLE is the pick for shoppers who want a fully loaded truck with modern features without stepping up to the higher trims. It's also the most popular trim in the lineup.

• Avg. market price: $25,896 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 2,448 listings — widest selection in the lineup
• View SLE listings

Trim Recommendations

Most Popular — SLE

With 2,448 active listings, the SLE is the clear volume leader in the lineup.

Browse SLE listings

Best Budget Option — Base

At $16,733 avg market price — below the lineup median of $21,314 — it's the most accessible entry point.

Browse Base listings

These recommendations are based on CarGurus' proprietary market data from September 24, 2026, CarGurus experts' opinions, and generative AI.