Used GMC Sierra 1500 for Sale nearSeattle, WA

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 $39,917, and its lowest point over the past year was $38,584. 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 upscale appeal, broad capability, and a comfortable cabin. The all-generations owner rating is 4.46/5 across every model year in the data.

Owners consistently praise its spacious and comfortable interior, strong performance, and impressive towing capability. Reviewers also frequently highlight its stylish design, advanced features, and overall versatility for both work and family use.

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

The main trade-offs center on fuel economy, pricing, and feature complexity, especially on higher-spec trucks. Some recent expert-tested years also call out value concerns and note that advanced safety features are not standard across the lineup.

33.3% 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, a comfortable cabin, and broad everyday appeal. 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 best managed by checking service history carefully, especially on older trucks where transmission and other mechanical concerns appear 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 84.1% — 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, and a rear-seat reminder
• Infotainment: a 7-inch touchscreen with Bluetooth and wired Apple CarPlay and Android Auto smartphone connectivity; 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 fleet-oriented starting point, with a 7-inch touchscreen, Bluetooth, and wired Apple CarPlay and Android Auto; best if you want the most straightforward setup.
• SLE: Adds the 12.3-inch digital instrument cluster and the 13.4-inch touchscreen with wireless Apple CarPlay and Android Auto, plus Google Built-In features; this is the best-value trim.
• Elevation: Brings the same larger-screen tech and a more distinctive appearance.
• SLT: Adds a more upscale feel while keeping the Sierra’s broad capability.
• AT4: Adds a 2-inch lift kit with Rancho monotube shocks, a locking rear differential, and skid plates.
• AT4X: Adds a front locker and more sophisticated Multimatc DSSV dampers.
• Denali: Adds the large chrome grille, available 22-inch wheels, power running boards, and upscale comfort features.
• Denali Ultimate: Adds the most premium presentation, along with a front-view camera as part of a 360-degree camera system, heated steering wheel, 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 combine broad availability with newer features and strong market interest. They also give you more choices across trims and price points, which makes it easier to find the right truck for your budget.

What is the GMC Sierra 1500's resale value?

Most model years in the table are down by roughly 8% to 14% year over year, which creates better opportunities for used buyers. The steepest drops are concentrated in the newer years, while the older trucks show somewhat smaller declines. That pattern suggests recent-model Sierra 1500s are softening faster than older ones, giving you more room to negotiate on late-model inventory.

The 2014, 2018, and 2015 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

The 2024 Sierra 1500 includes automatic emergency braking with pedestrian detection, forward collision warning, lane-keep assist, lane-departure warning, and a rear-seat reminder as standard safety features. 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 −13.57% versus a year ago, and the 2024 model is at −10.39%.
• Deal availability: The 2025 model has 35% good and great deals, and the 2024 model has 35.9%.
• Sweet-spot year: The 2023 model has the most listings at a current average price of $44,829. The GMC Sierra 1500 offers a spacious, comfortable cabin with a premium feel that makes it appealing for both daily driving and long trips.

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, while the available 6.2-liter V8 makes 420 hp and 460 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 29, 2026, CarGurus experts' opinions, and generative AI.

Compare 2018 GMC Sierra 1500 Trims in Seattle, WA

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 $27,116
• 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 great choice for budget-minded buyers.

• Avg. market price: $27,116 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 44 listings
• View Base listings

SLE — "Who It's For"

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

• Avg. market price: $27,116 (updated weekly)
• MPG/MPGe: 18 city / 24 hwy
• Inventory: 127 listings — widest selection in the lineup
• View SLE listings

Trim Recommendations

Most Popular — SLE

With 127 active listings, the SLE is the clear volume leader in the lineup.

Browse SLE listings

Best Budget Option — Base

At $27,116 avg market price — below the lineup median of $27,116 — it's the most accessible entry point.

Browse Base listings

These recommendations are based on CarGurus' proprietary market data from October 1, 2026, CarGurus experts' opinions, and generative AI.