Used 2023 GMC Sierra 1500 for Sale nearPortland, ME

How much does the 2023 GMC Sierra 1500 cost?

Prices have softened 10.11% compared to this time last year, making it a favorable time to shop this model year.

There are 9,748 listings available, which points to solid inventory availability.

Is the 2023 GMC Sierra 1500 a good car?

Generally — the 2023 GMC Sierra 1500 earns a 4.3/5 user rating and a 7.8/10 expert rating. The standout strength is Safety at 9/10.

Drivers consistently praise its stylish design, advanced technology, and comfortable ride, and many also like the variety of options and the improved interior compared with older models. The Sierra 1500 is especially appealing if you want a full-size pickup that leans upscale while still serving everyday comfort and practical use. Trade-offs include too much tech for a truck, cabin quality that still trails the competition, and city parking that can be a challenge without tech aids. With 36.7% of listings marked as good or great deals, the market gives you some room to shop selectively.

Is the 2023 GMC Sierra 1500 reliable?

Owners rate it 4.3/5, a solid signal of long-term satisfaction.

Drivers describe it as stylish, comfortable, and advanced, and they also point to the variety of options and improved interior as reasons it feels like a strong long-term choice. The expert drive notes also emphasize that the truck is built around a lively diesel engine and a smooth, composed driving character, which supports confidence in day-to-day use. GMC backs the Sierra 1500 with a five-year/60,000-mile powertrain warranty. For used buyers, the main long-term risk is that reported engine concerns and feature complexity can make careful inspection especially important.

What should I look for when buying a used 2023 GMC Sierra 1500?

Accident-free inventory is excellent at 90.7% — clean inventory, standard diligence applies.

You should still run a vehicle history report and prioritize a pre-purchase inspection, especially if you’re shopping higher-trim trucks with more technology and convenience equipment. Focus on overall condition, feature operation, and signs of hard use, since this model can be configured as everything from a work truck to a luxury-leaning cruiser. If you want the most confidence, pay extra attention to how the truck’s tech, cabin materials, and parking aids have held up.

Key things to evaluate:

• Trim level: The base Pro keeps things simpler with a 7-inch touchscreen, Apple CarPlay, Android Auto, remote keyless entry, cloth seats, and Bluetooth, while the SLE adds a power-adjustable driver’s seat, heated front seats, a heated steering wheel, dual-zone automatic climate control, a wall-style power outlet, a fully digital instrument panel, a larger touchscreen, wireless Apple CarPlay and Android Auto, additional USB ports, and a Wi-Fi hotspot. The SLT adds leather upholstery, an auto-dimming rearview mirror, a power-adjustable front passenger seat, and memory settings for the driver’s seat. The Denali Ultimate is the most luxurious version described, with nearly every feature optional on other trims.
• Powertrain: The Sierra 1500 offers a gas 2.7-liter turbocharged four-cylinder, a 3.0-liter Duramax turbocharged inline-six diesel, a 5.3-liter V8, and a 6.2-liter V8. The diesel is described as lively, and the gas turbo-four is the efficiency-focused choice among the gas engines.
• Safety package: Standard equipment includes forward collision warning, automatic emergency braking, pedestrian detection, lane-departure warning, and GM’s Teen Driver system. Higher trims can add blind-spot monitoring, rear cross-traffic alert, front and rear parking sensors, adaptive cruise control, a surround-view camera system, GM’s Safety Alert seat, and Super Cruise. The most advanced safety content is concentrated on upper trims.
• Infotainment: The base Pro uses a 7-inch touchscreen, while other trims get a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto. The updated system also includes Google-connected apps, a volume dial, and a home button, and all trims but the base Pro also feature a 12.3-inch fully digital instrument panel.
• Fuel efficiency: The Duramax turbodiesel with RWD returns 24 mpg city, 29 mpg highway, and 26 mpg combined. The gas turbocharged four-cylinder returns 19 mpg city, 22 mpg highway, and 20 mpg combined. The 5.3-liter V8 returns 16 mpg city, 21 mpg highway, and 18 mpg combined, while the 6.2-liter V8 with mud terrain tires returns 14 mpg city, 17 mpg highway, and 15 mpg combined.

Which 2023 GMC Sierra 1500 trim should I buy?

The 2023 GMC Sierra 1500 is offered in 8 trim levels: Pro, SLE, Elevation, SLT, AT4, AT4X, Denali, and Denali Ultimate.

Here's the short version:

• Pro: This is the simplest choice if you want the most straightforward setup, including the carryover infotainment system and the basics you need without the added complexity of the higher trims.
• SLE: This is the best-value trim for many shoppers because it adds heated front seats, a heated steering wheel, dual-zone climate control, a larger touchscreen, wireless smartphone integration, and a Wi-Fi hotspot.
• Elevation: This trim keeps much of the SLE’s equipment while opening the door to more available options and packages, so it suits you if you want a more customized build.
• SLT: This is the step up if you want a more upscale cabin, thanks to leather upholstery, memory settings, and a power-adjustable front passenger seat.
• AT4: This is the off-road-oriented choice, with standard 4WD, skid plates, a lifted suspension, a two-speed transfer case, and an upgraded air filter.
• AT4X: This is the most trail-focused trim described, with steel bumpers, an integrated front winch, mud-terrain tires, additional skid plates, upgraded dampers, and locking differentials.
• Denali: This is the luxury-leaning pick if you want premium audio, ventilated front seats, wireless charging, and a bed-view camera.
• Denali Ultimate: This is the top-end choice if you want the most complete luxury and tech package, including massaging front seats, a 12-speaker Bose system, 22-inch wheels, and the integrated Kicker sound system.

The safety package expands as you move up the range, and the most advanced driver-assistance features are concentrated on the upper trims.

Is now a good time to buy a used 2023 GMC Sierra 1500?

This is a moderate market for selective buyers, so you can shop with some leverage if you know what you want.

• Deal availability: 36.7% of listings are priced as good or great deals.
• Inventory: There are 9,748 listings available.
• Price trend: Prices have softened 10.11% compared with last year.
• Clean inventory: 90.7% of listings are accident-free.

If you find a listing below $43,970, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2023 GMC Sierra 1500's resale value?

The current average of $43,970 sits slightly below last year's $48,916.

That price movement suggests the Sierra 1500 has already absorbed a meaningful amount of depreciation, which can help future resale stability if you buy at the right price. If you keep the truck in strong condition and avoid overpaying up front, you may have a better chance of limiting your loss when it’s time to sell. Demand should also benefit from the model’s strong owner satisfaction and broad appeal across work, comfort, and luxury use cases.

Vehicles with solid owner satisfaction ratings, like this model year's 4.3/5, tend to retain buyer demand, which supports resale value over time.

Is the 2023 GMC Sierra 1500 safe?

The 2023 GMC Sierra 1500 earns a 9/10 safety score from our experts.

Standard safety equipment includes forward collision warning, automatic emergency braking, pedestrian detection, lane-departure warning, and GM’s Teen Driver system. Higher trims add blind-spot monitoring, rear cross-traffic alert, front and rear parking sensors, adaptive cruise control, a surround-view camera system, GM’s Safety Alert seat, and Super Cruise. The most advanced driver-assistance features are concentrated on upper trims, so you’ll want to check carefully which systems are included on the specific truck you’re considering.

Should I buy a 2023 GMC Sierra 1500 or consider a different year?

If you're weighing the 2023 against nearby model years, here's how to think about it:

Choose the 2023 if:

• 36.7% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 90.7% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 10.11% compared with last year.
• Owners rate it 4.3/5 — a solid satisfaction signal.
• The 2023 adds a luxury-leaning Denali Ultimate and a lively diesel option.

Consider the 2022 if:

• At $40,722, the 2022 costs less than the current year's $43,970 average.
• It brings a major makeover with more upscale design, added utility, and new high-end trims.

Consider the 2024 if:

• At $46,883, the 2024 costs more than the current year's $43,970 average.
• It broadens versatility with easier-to-use tech and a fuel-efficient diesel.

The bottom line: The 2023 is the right pick if you want the strongest mix of luxury ambition, feature depth, and current-market value. If your priority is saving money, the 2022 is the better bargain; if you want a newer-feeling truck and can spend more, the 2024 is worth a look.

How does the 2023 GMC Sierra 1500 compare to the 2023 Chevrolet Silverado 1500?

Expert Pros & Cons (per CarGurus review team)

2023 GMC Sierra 1500:

• Pros: Tons of cabin space, Lively diesel engine, Versatile features.
• Cons: Too much tech for a truck, Cabin quality still trails competition, City parking a challenge without tech aids.

2023 Chevrolet Silverado 1500:

• Pros: Easy-to-use technology, Powerful engine options, Tons of cabin space.
• Cons: Rough ride compared to rivals, Polarizing front-end styling, Steering feels numb at times.

Our experts score the 2023 GMC Sierra 1500 7.8/10 and the 2023 Chevrolet Silverado 1500 8.7/10. The Sierra leans more upscale and feature-rich, while the Silverado comes across as the more straightforward and better-rated choice overall. If you want a truck with a lively diesel and lots of versatility, the Sierra has the edge in personality; if you want easier tech and a stronger expert score, the Silverado is the safer bet.

Read our full side-by-side expert comparison here.

These recommendations are based on CarGurus' proprietary market data from October 27, 2026, CarGurus experts' opinions, and generative AI.