Used GMC Sierra 1500 for Sale nearSaint Louis, MO

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 $40,255, and its lowest point over the past year was $38,583. 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 its spacious and comfortable cabin, strong performance, and upscale feel. They also frequently highlight its stylish design, advanced features, and towing capability.

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

The main trade-offs in recent expert-tested years center on value, fuel economy, and the fact that not all advanced safety features are standard.

31.8% of listings are priced as good or great deals.

Are GMC Sierra 1500 models reliable?

Owners and experts consistently praise the GMC Sierra 1500 for its strong performance, comfortable interior, and broad feature set. Across the model years in the data, it also earns positive feedback for its smooth ride and upscale feel.

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

For long-term ownership, you should pay close attention to maintenance history and model-year condition, especially on older trucks where wear and repair history matter more.

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

Across all model years, accident-free inventory is solid at 84.8% — 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: Denali and Denali Ultimate models can also be equipped with Super Cruise, GM’s hands-free driver-assistance system.
• Infotainment: 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.
• Fuel efficiency: The Duramax diesel is EPA-rated at 25 mpg combined with RWD and 24 mpg combined with 4WD.

Which GMC Sierra 1500 trim should I buy?

The 2024 GMC Sierra 1500 offers these trims:

• Pro: The work-focused starting point, with a 7-inch touchscreen, Bluetooth, and wired Apple CarPlay and Android Auto; it suits buyers who want the Sierra’s core capability at the lowest entry point.
• SLE: Adds the 12.3-inch digital instrument cluster, a 13.4-inch touchscreen, wireless Apple CarPlay and Android Auto, and Google Built-In, making it the best-value trim for many shoppers.
• Elevation: Brings the same larger-screen tech with a more distinctive appearance and a step up in everyday presentation.
• SLT: Adds a more upscale feel and sits in the middle of the lineup for buyers who want more comfort and convenience.
• AT4: Adds a 2-inch lift kit, Rancho monotube shocks, a locking rear differential, and skid plates for buyers who want off-road hardware.
• AT4X: Adds a front locker and more sophisticated Multimatc DSSV dampers, along with the diesel engine being standard for 2024.
• Denali: Adds the signature chrome grille and a luxury-focused cabin with premium comfort features.
• Denali Ultimate: Adds the most upscale presentation, including available 22-inch wheels, power running boards, a 360-degree camera system, heated, ventilated, and massaging front seats, heated rear seats, a power sunroof, and dual-zone automatic climate control.

What GMC Sierra 1500 do most buyers choose?

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

These higher-volume years tend to be popular because they give you more inventory to compare, which can make it easier to find the right trim, mileage, and price combination. They also often line up with newer features and broader deal availability.

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 negotiate. The steepest drops are concentrated in the newer model years, while the older trucks show smaller declines. That pattern suggests recent inventory has softened more quickly than the oldest examples.

The 2014, 2015, and 2018 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.

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 −12.93% versus a year ago, and the 2024 model is at −10.69%.
• Deal availability: The 2025 model has 32.8% good and great deals, and the 2024 model has 33.8%.
• Sweet-spot year: The 2023 model has the most listings at a current average price of $45,237. The GMC Sierra 1500 offers a spacious, comfortable cabin with a premium-leaning character that makes it feel especially well rounded for daily use.

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, and 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 2023 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 15, 2026, CarGurus experts' opinions, and generative AI.

Compare 2018 GMC Sierra 1500 Trims in Saint Louis, MO

The 2018 GMC Sierra 1500 offers a blend of capability and comfort, with trims that cater to both budget-conscious buyers and those seeking more features.

• Starting at $27,776
• 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 a solid choice for budget-minded buyers.

• Avg. market price: $27,776 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 62 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 for a reason.

• Avg. market price: $27,776 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 203 listings — widest selection in the lineup
• View SLE listings

Trim Recommendations

Most Popular — SLE

With 203 active listings, the SLE is the clear volume leader in the lineup.

Browse SLE listings

Best Budget Option — Base

At $27,776 avg market price — below the lineup median of $27,776 — it's the most accessible entry point.

Browse Base listings

These recommendations are based on CarGurus' proprietary market data from September 12, 2026, CarGurus experts' opinions, and generative AI.