Used 2023 GMC Sierra 1500 for Sale nearDenver, CO

How much does the 2023 GMC Sierra 1500 cost?

Prices have softened 9.72% compared to this time last year, making it a favorable time to shop this model year.

There are 9,664 listings available, which suggests solid inventory for comparison shopping.

If you find a listing below $45,488.04, that's toward the low end of the year-round range and worth acting on quickly.

Is the 2023 GMC Sierra 1500 a good car?

Generally — the 2023 GMC Sierra 1500 earns 4.33/5 from owners and 7.83/10 from our experts. The standout strength is Safety at 9/10.

Drivers consistently praise its stylish design, advanced technology, and comfortable ride. They also like the variety of options and the improved interior compared with older models.

The trade-offs are familiar for a truck trying to do a lot: rising prices, limited availability of specific features like Super Cruise, and some concern about engine problems for long-term ownership.

That lines up with the Sierra’s broader mission in the overview: you’re looking at a full-size truck that leans upscale without giving up utility, especially if you want a richly equipped daily driver or long-distance cruiser. Even so, the market shows 33.2% good or great deals, which helps offset some of the premium positioning.

Is the 2023 GMC Sierra 1500 reliable?

Owners rate it 4.33/5, a solid signal of long-term satisfaction.

The owner feedback points to a truck that many people find dependable enough to recommend, with praise centered on comfort, technology, and overall satisfaction. That said, some drivers do mention concerns about engine problems for long-term ownership, so reliability confidence is not universal.

The diesel powertrain is described as lively, and the 10-speed automatic keeps it in its optimal power range, which supports a strong dependability impression in daily use. The truck also comes with a five-year/60,000-mile powertrain warranty, which adds some ownership reassurance.

For used buyers, the main long-term risk is that higher-tech, higher-trim trucks can be more expensive to keep satisfying if prior maintenance or repairs were neglected.

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

Accident-free inventory is excellent at 92.2% — 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-mileage trucks or examples with lots of tech and driver-assistance equipment. Focus on how the cabin, electronics, and powertrain feel in real use, since the Sierra’s appeal depends heavily on condition and feature execution.

Key things to evaluate:

• Trim level: The base Pro keeps things simpler with a 7-inch touchscreen, cloth seats, Bluetooth, and remote keyless entry, while higher trims add more comfort and convenience. The SLE brings a power-adjustable driver’s seat, heated front seats, a heated steering wheel, dual-zone automatic climate control, a larger touchscreen, wireless Apple CarPlay and Android Auto, and a digital instrument panel.
• Powertrain: You get a 2.7-liter turbocharged four-cylinder with 310 horsepower and 430 pound-feet of torque, a 3.0-liter Duramax turbocharged inline-six diesel with 305 hp and 495 lb-ft, plus 5.3-liter and 6.2-liter V8 options. The diesel is the efficiency leader, and the gas four-cylinder uses an eight-speed automatic while the other engines use a 10-speed.
• 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, Safety Alert seat, and Super Cruise.
• Infotainment: The base truck uses a 7-inch touchscreen with Apple CarPlay and Android Auto. Other trims get a 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto, Google-connected apps, and a layout that’s more advanced but also more complex.
• Fuel efficiency: The Duramax turbodiesel with RWD returns 24 mpg city, 29 mpg highway, and 26 mpg combined. With 4WD, it drops to 22 mpg city, 27 mpg highway, and 24 mpg combined. The turbo-four returns 19 mpg city, 22 mpg highway, and 20 mpg combined, while the 5.3-liter V8 returns 16 mpg city, 21 mpg highway, and 18 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 Sierra’s core truck basics without the more complicated tech. It keeps the 7-inch touchscreen and a more straightforward cabin layout, which makes it the best fit if you value simplicity over luxury.
• SLE: This is the best-value trim for many shoppers because it adds a strong mix of comfort and convenience, including heated front seats, a heated steering wheel, dual-zone climate control, a larger touchscreen, wireless smartphone integration, and a digital gauge cluster.
• Elevation: Choose this if you want much of the SLE’s equipment with a more style-forward presentation and the flexibility of additional options and packages.
• SLT: This is the first trim that clearly moves into premium-truck territory with leather upholstery, memory settings, and a power-adjustable front passenger seat, making it a good fit if you want more comfort without jumping to the luxury end.
• AT4: Pick this if you want the off-road-oriented setup, standard 4WD, skid plates, a lifted suspension, a two-speed transfer case, and an upgraded air filter.
• AT4X: This is the more serious trail-focused choice, with AEV partnership hardware, steel bumpers, an integrated front winch, mud-terrain tires, upgraded dampers, and locking differentials.
• Denali: This is the luxury trim for buyers who want upscale styling, a Bose premium audio system, ventilated front seats, wireless charging, and a camera view of the truck bed.
• Denali Ultimate: This is the top choice if you want the most fully equipped Sierra, with massaging front seats, a 12-speaker Bose system, unique interior detailing, 22-inch wheels, and the most complete feature set.

The safety package starts with standard driver-assistance features, while the most advanced systems are reserved for higher trims, with Denali Ultimate getting every available one.

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

This looks like a moderate, selective buyer’s market, especially if you’re willing to compare listings carefully.

• Deal availability: 33.2% of listings are priced as good or great deals.
• Inventory: There are 9,664 listings available.
• Price trend: Prices have softened 9.72% compared with last year.
• Clean inventory: 92.2% of listings are accident-free.

If you find a listing below $45,488.04, 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 $45,476 sits slightly below last year's $50,373.

That price decline suggests the market has already adjusted downward, which can help future resale if you buy at the right number today. If you overpay near the top of the range, you may have less room to recover value later.

The Sierra’s broad appeal still helps: it can serve as a work truck, a luxury cruiser, or an off-road pickup depending on trim. That flexibility supports demand, but resale will still depend heavily on trim, mileage, and condition.

Vehicles with solid owner satisfaction ratings, like this model year's 4.33/5, tend to retain buyer demand, which supports resale value over time.

Is the 2023 GMC Sierra 1500 safe?

It earns a 9/10 safety score from our experts.

The Sierra 1500 comes standard with 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, and GM’s Safety Alert seat.

Super Cruise is available on the Denali Ultimate, giving you hands-free highway driving and even hands-free lane changes with a tap of the turn signal. That makes the top trim especially compelling if advanced driver assistance is a priority.

The main caveat is that many of the most advanced safety features are not standard across the lineup, so you’ll want to verify exactly which systems are on the 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:

• 33.2% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 92.2% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 9.72% compared with last year.
• Owners rate it 4.33/5 — a solid satisfaction signal.
• It adds the Denali Ultimate, which pushes the Sierra further into luxury-truck territory.

Consider the 2022 if:

• At $42,366, the 2022 costs less than the current year's $45,476 average.
• It brought a major redesign with a bolder look, a more lavish interior, and new high-end trims.

Consider the 2024 if:

• At $48,655, the 2024 costs more than the current year's $45,476 average.
• It broadens the truck’s appeal with more versatility, easy-to-use tech, and a fuel-efficient diesel.

The bottom line: If you want the best mix of current pricing, strong inventory, and luxury-truck appeal, the 2023 is the smart target. If your budget is tighter, the 2022 can save you money while still delivering the redesign benefits. If you want to spend more for a newer model-year alternative, the 2024 is worth a look, but the 2023 remains the more balanced buy.

These recommendations are based on CarGurus' proprietary market data from September 4, 2026, CarGurus experts' opinions, and generative AI.