Used 2023 GMC Sierra 1500 for Sale near Connecticut

How much does the 2023 GMC Sierra 1500 cost?

Prices have softened 9.79% compared to this time last year, making it a favorable time to shop this model year.

There are 9,680 listings available, which suggests you have a healthy amount of inventory to compare.

Is the 2023 GMC Sierra 1500 a good car?

Generally — 4.33/5 from owners and 7.83/10 from our experts. The standout strength is Safety at 9/10.

Drivers repeatedly praise the Sierra 1500 for its stylish design, advanced technology, and comfortable ride. The review summary also points to a wide variety of options and an improved interior compared with older models.

On the downside, some owners mention rising prices, limited availability of certain features like Super Cruise, and concerns about engine problems for long-term ownership. That lines up with the truck’s upscale, feature-rich positioning in the overview: it appeals most if you want a premium-feeling full-size pickup rather than a stripped-down work truck.

Only 31.9% of listings are priced as good or great deals, so the market rewards patience and comparison shopping.

Is the 2023 GMC Sierra 1500 reliable?

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

The owner summary points to a truck that many drivers find stylish, comfortable, and well equipped, while also suggesting confidence in the way it performs day to day. The expert driving notes also describe the diesel powertrain as lively and say the truck feels smooth and composed, which supports the sense that it is built to be easy to live with.

The cost-effectiveness notes add that the Sierra 1500 is backed by a five-year/60,000-mile powertrain warranty. For used buyers, the main long-term ownership risk is making sure any truck you consider has been maintained carefully, especially if you plan to keep it for many years.

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

Accident-free inventory is excellent at 92.1% — clean inventory, standard diligence applies.

You should still run a history report on any truck you’re serious about, especially if it has higher mileage or a long option list. A pre-purchase inspection is smart here because the Sierra’s tech-heavy setup and premium features can be expensive to sort out if something is not working properly. Focus on cabin condition, electronics, and evidence of regular maintenance, since the truck’s appeal depends heavily on how well its upscale equipment has held up.

Key things to evaluate:

• Trim level: The base Pro keeps things simpler with a 7-inch touchscreen, cloth seats, Bluetooth, remote keyless entry, and a more straightforward cabin layout. Higher trims add more comfort and convenience, while the Denali Ultimate brings nearly every feature available, including massaging front seats, a 12-speaker Bose premium sound system, and unique interior details.
• Powertrain: You get a 2.7-liter turbocharged four-cylinder, a 3.0-liter Duramax turbocharged inline-six diesel, a 5.3-liter V8, or a 6.2-liter V8. The diesel is the efficiency standout, while the gas engines trade economy for stronger performance.
• Safety package: Standard 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, Safety Alert seat, and Super Cruise.
• Infotainment: The base Pro 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 more advanced layout.
• 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 capability without the more complicated cabin tech. It keeps the 7-inch touchscreen and the more traditional interior layout, so it suits you best if you value straightforward function over luxury.
• SLE: This is the best-value trim for many shoppers because it adds 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.
• Elevation: This trim builds on the SLE’s equipment and opens the door to more available options and packages, so it makes sense if you want a more customized truck without jumping straight to the pricier luxury trims.
• SLT: This is the first trim that clearly leans upscale, adding leather upholstery, a power-adjustable front passenger seat, memory settings for the driver’s seat, and an auto-dimming rearview mirror.
• 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 serious trail-focused trim, with steel bumpers, an integrated front winch, 33-inch mud-terrain tires, additional skid plates, upgraded Multimatic dampers, and front-and-rear electronically locking differentials.
• Denali: This is the luxury step-up if you want premium touches without going all the way to the top. It adds unique styling, a Bose premium audio system, ventilated front seats, wireless device charging, and a camera view of the truck bed.
• Denali Ultimate: This is the top luxury pick, with massaging front seats, 22-inch wheels, a 12-speaker Bose premium sound system, an integrated Kicker sound system in the Multi-Pro tailgate, and distinctive interior detailing.

The safety package is strongest on the Denali Ultimate, which gets every available driver-assistance feature, including Super Cruise.

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

This looks like a moderate, selective buyer’s market, so you can shop with some leverage if you stay disciplined.

• Deal availability: 31.9% of listings are priced as good or great deals.
• Inventory: There are 9,680 listings available.
• Price trend: Prices have softened 9.79% compared with last year.
• Clean inventory: 92.1% of listings are accident-free.

If you find a listing below $45,333, 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 $45,333 sits slightly below last year's $50,250.

That softer pricing can help you buy more truck for the money today, but it also means future sellers may face a more competitive market if prices keep easing. If you buy well and keep the truck in strong condition, you can help protect your exit value later. Higher-trim trucks with desirable equipment may hold buyer interest better than plain-spec examples.

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?

The 2023 GMC Sierra 1500 earns a Top Safety Pick from IIHS and five-star ratings from NHTSA.

It 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, and GM’s Safety Alert seat.

Super Cruise is available on the Denali Ultimate and adds hands-free highway driving with lane-change capability. If you want the most complete safety and driver-assistance setup, that trim is the one to target.

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:

• 31.9% of listings are priced as good or great deals.
• Accident-free inventory is excellent at 92.1% — clean inventory, standard diligence applies.
• Price trend: Prices have softened 9.79% compared with last year.
• Owners rate it 4.33/5 — a solid satisfaction signal.
• It adds the Denali Ultimate and broadens the truck’s luxury and tech appeal.

Consider the 2022 if:

• At $42,216, the 2022 costs less than the current year's $45,333 average.
• It brought a major redesign with more lavish interior tech and new high-end trims.

Consider the 2024 if:

• At $48,552, the 2024 costs more than the current year's $45,333 average.
• It leans harder into luxury and technology while keeping broad pickup versatility.

The bottom line: If you want the best mix of price movement, inventory, and feature depth, the 2023 is the smart default. If your priority is saving money, the 2022 is the better value play. If you want the newest version and are willing to pay more, the 2024 is the upgrade path.

These recommendations are based on CarGurus' proprietary market data from September 11, 2026, CarGurus experts' opinions, and generative AI.