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2018 GMC Sierra 1500 market value, prices & key facts

What dealers are asking for the 2018 GMC Sierra 1500 right now, from 481 current listings at 421 dealerships across 46 states, with EPA fuel economy, NHTSA safety ratings and recalls for this model year.

Asking prices of current listings · AutosXchange live dealer listings, November 8, 2026 · not sold prices

2018 GMC Sierra 1500
2018 GMC Sierra 1500 · Photo from a listing on AutosXchange
481Listings for sale now
$25,066Median asking price
$17,990–$32,121Typical range (10th–90th percentile)
112,686Median miles (481 listings with odometer)
421Dealerships listing it
See 2018 GMC Sierra 1500 listingsAll GMC Sierra 1500 yearsOther GMC models
Key facts

2018 GMC Sierra 1500 key facts

Body style
Pickup
Powertrains
Hybrid, Flex-Fuel and Gas
Engines
5.3L 8-cyl, 4.3L 6-cyl and 6.2L 8-cyl
Drivetrains
RWD and 4WD
EPA MPG (city / hwy / combined)
15–18 / 19–24 / 17–20
Fuel
Regular, Gasoline or E85 and Premium
EPA size class
Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD and Special Purpose Vehicle 2WD
Trims / series (decoded from listed VINs)
Fleet/Base and SLT
Assembly country (listed VINs)
United States and Mexico
NHTSA overall safety rating
5 out of 5 stars (7 tested versions)
NHTSA safety recalls
7 recall campaigns
Sources: U.S. EPA / DOE fueleconomy.gov (as of November 6, 2026); NHTSA vPIC VIN decoder (as of November 6, 2026); NHTSA 5-Star Safety Ratings (as of November 6, 2026); NHTSA Recalls (as of November 6, 2026). Government data for the model year as a whole; equipment, ratings and recalls of an individual vehicle depend on its trim, options and VIN.
In brief

2018 GMC Sierra 1500 overview

The 2018 GMC Sierra 1500 is a pickup, offered with hybrid, flex-fuel and gas powertrains (RWD or 4WD). EPA ratings for its 14 tested versions range 17–20 MPG combined. NHTSA rates it 5 out of 5 stars overall and lists 7 safety recalls for this model year. AutosXchange has 481 listed now, with a median asking price of $25,066 and median 112,686 miles.

Composed only from U.S. government data (EPA, NHTSA) and current AutosXchange listings; not a review.
Market snapshot

2018 GMC Sierra 1500: the market right now

Half of the 481 listings ask between $20,999 and $28,977.

$20,99925th percentile asking price
$25,066Median asking price
$28,97775th percentile asking price
112,686Median miles (middle half 87,595–137,958)
14Listings with a price cut since first listed
358Cities with listings

New vs. used (by odometer)

New or demo (under 100 mi): 0Used (100+ mi): 481

Top cities by supply

2018 GMC Sierra 1500 listings by cityHouston, TX: 8 listings, median $23,995; Marrero, LA: 4 listings, median $24,995; Hanover, MA: 4 listings, median $19,111; North Canton, OH: 4 listings, median $28,600; Sioux Falls, SD: 4 listings, median $28,120; Jasper, AL: 3 listings, median $29,990; Franktown, CO: 3 listings, median $27,950; Duluth, GA: 3 listings, median $27,995.Houston, TXHouston, TX: 8 · median $24k8 · median $24kMarrero, LAMarrero, LA: 4 · median $25k4 · median $25kHanover, MAHanover, MA: 4 · median $19.1k4 · median $19.1kNorth Canton, OHNorth Canton, OH: 4 · median $28.6k4 · median $28.6kSioux Falls, SDSioux Falls, SD: 4 · median $28.1k4 · median $28.1kJasper, ALJasper, AL: 3 · median $30k3 · median $30kFranktown, COFranktown, CO: 3 · median $28k3 · median $28kDuluth, GADuluth, GA: 3 · median $28k3 · median $28k
Price cuts: listings whose current asking price is below the price first recorded by AutosXchange (1 were raised). New vs. used is read from the odometer (under 100 miles = new or demo) because most dealer feeds carry no new/used flag.
Price vs. mileage

2018 GMC Sierra 1500: asking price vs. mileage

On the trend line, every 10,000 more miles goes with about $980 lower asking price.

2018 GMC Sierra 1500 asking price vs. mileageScatter of 467 current 2018 GMC Sierra 1500 listings (asking price against odometer miles), with a least-squares trend line of about $-980 per 10,000 miles.$10k$15k$20k$25k$30k$35k$40k025k50k75k100k125k150k175k200k225kOdometer (miles)Asking price
Each dot is one current listing; the line is a straight least-squares fit over all of them. 14 extreme listings (top/bottom 1% of price or mileage) are outside the chart.
Price distribution

2018 GMC Sierra 1500: how asking prices are spread

Half of listings ask between $20,999 and $28,977; the most common band is $22,500–$25,000 (90 listings).

2018 GMC Sierra 1500 asking price distributionHistogram of 481 current 2018 GMC Sierra 1500 asking prices in 11 bins of $2,500; median $25,066.0255075100$10k–$12.5k: 5 listings$12.5k–$15k: 21 listings$15k–$17.5k: 20 listings$17.5k–$20k: 50 listings$20k–$22.5k: 54 listings$22.5k–$25k: 90 listings$25k–$27.5k: 72 listings$27.5k–$30k: 89 listings$30k–$32.5k: 39 listings$32.5k–$35k: 32 listings$35k–$37.5k: 9 listings (includes 5 above $37.5k)$10k$15k$20k$25k$30k$35k$37.5k+Median $25,066Asking price (bar height = number of listings)
Bars count listings in $2,500 price bands; the dashed line marks the median. The outer bars also include the lowest and highest 1% of prices.
Where they are listed

2018 GMC Sierra 1500: listings by state (top 10)

Texas has the most, with 52 listings (11% of 481).

2018 GMC Sierra 1500 listings by stateNumber of current 2018 GMC Sierra 1500 listings by dealer state: Texas 52, Alabama 22, Indiana 22, Ohio 20, California 18, Georgia 17, Arkansas 16, Tennessee 16, Massachusetts 15, Michigan 15.TexasTexas: 52 · 11%52 · 11%AlabamaAlabama: 22 · 5%22 · 5%IndianaIndiana: 22 · 5%22 · 5%OhioOhio: 20 · 4%20 · 4%CaliforniaCalifornia: 18 · 4%18 · 4%GeorgiaGeorgia: 17 · 4%17 · 4%ArkansasArkansas: 16 · 3%16 · 3%TennesseeTennessee: 16 · 3%16 · 3%MassachusettsMassachusetts: 15 · 3%15 · 3%MichiganMichigan: 15 · 3%15 · 3%
Counts current AutosXchange listings by the selling dealer's state (46 states in total).
By trim

2018 GMC Sierra 1500: listings by trim (top 4)

SLT is the most-listed trim (210 listings); Denali has the highest median asking price of these, $28,472.

2018 GMC Sierra 1500 listings by trimSLT: 210 listings, median $26,309; Denali: 74 listings, median $28,472; SLE: 38 listings, median $23,172; Base: 7 listings, median $14,995.SLTSLT: 210 · median $26.3k210 · median $26.3kDenaliDenali: 74 · median $28.5k74 · median $28.5kSLESLE: 38 · median $23.2k38 · median $23.2kBaseBase: 7 · median $15k7 · median $15k
Trim is read from the listing title (the word after the model name), so it is approximate. Trims with fewer than 3 listings are not shown.
Current listings

2018 GMC Sierra 1500 for sale now: best value first

2018 GMC Sierra 1500 Base Double Cab 4WD for sale in Flint, MI40% below similar
2018 GMC Sierra 1500 Base Double Cab 4WD$15,614180,265 mi · Flint, MIBankruptcy Auto Loans Now
2018 GMC Sierra 1500 SLT for sale in Dickinson, TX39% below similar
2018 GMC Sierra 1500 SLT$15,675201,738 mi · Dickinson, TXGay Buick GMC
2018 GMC Sierra 1500 SLE for sale in Rome, NY39% below similar
2018 GMC Sierra 1500 SLE$15,750126,000 mi · Rome, NYK & L Auto Sales
2018 GMC Sierra 1500 SLT for sale in Milan, IL39% below similar
2018 GMC Sierra 1500 SLT$15,790168,828 mi · Milan, ILVillage Auto Outlet
2018 GMC Sierra 1500 2WD Reg Cab 133.0" for sale in West Boylston, MA39% below similar
2018 GMC Sierra 1500 2WD Reg Cab 133.0"$15,90780,513 mi · West Boylston, MAAutowright Motor Co.
2018 GMC Sierra 1500 Elevation Double Cab 2WD for sale in Jersey City, NJ38% below similar
2018 GMC Sierra 1500 Elevation Double Cab 2WD$15,995145,707 mi · Jersey City, NJGarden State Auto Mall
2018 GMC Sierra 1500 for sale in Auburn, WA38% below similar
2018 GMC Sierra 1500$15,99594,407 mi · Auburn, WACHAPINE'S AUTO SALES LLC
2018 GMC Sierra 1500 SLT Crew Cab Short Box 4WD for sale in Roanoke, VA38% below similar
2018 GMC Sierra 1500 SLT Crew Cab Short Box 4WD$15,995153,713 mi · Roanoke, VAStar Motor LLC
2018 GMC Sierra 1500 2WD Reg Cab 133.0" for sale in Ottawa, IL38% below similar
2018 GMC Sierra 1500 2WD Reg Cab 133.0"$15,999129,022 mi · Ottawa, ILKenn Motors
2018 GMC Sierra 1500 1500 for sale in Amherst, OH38% below similar
2018 GMC Sierra 1500 1500$15,999116,180 mi · Amherst, OHSun Belt Motors, Inc
2018 GMC Sierra 1500 SLT Crew Cab 4WD for sale in Blaine, MN38% below similar
2018 GMC Sierra 1500 SLT Crew Cab 4WD$16,045182,452 mi · Blaine, MNSS Motors
2018 GMC Sierra 1500 2WD Reg Cab 133.0 for sale in Gonzales, LA35% below similar
2018 GMC Sierra 1500 2WD Reg Cab 133.0$16,75481,468 mi · Gonzales, LARalph Sellers Chrysler Dodge Jeep
2018 GMC Sierra 1500 SLE Double Cab 4WD for sale in Boise, ID35% below similar
2018 GMC Sierra 1500 SLE Double Cab 4WD$16,795134,794 mi · Boise, IDBoise Auto Sales LLC
2018 GMC Sierra 1500 for sale in Columbus, OH34% below similar
2018 GMC Sierra 1500$16,995156,097 mi · Columbus, OHOne Stop Auto Care LLC
2018 GMC Sierra 1500 4WD Crew Cab 153.0" SLE for sale in Fort Morgan, CO34% below similar
2018 GMC Sierra 1500 4WD Crew Cab 153.0" SLE$16,998158,576 mi · Fort Morgan, COMorgan County Motors - Fort Morgan
2018 GMC Sierra 1500 for sale in Nampa, ID34% below similar
2018 GMC Sierra 1500$16,999127,252 mi · Nampa, IDBB Wholesale Auto
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE for sale in Las Vegas, NV34% below similar
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE$16,999167,480 mi · Las Vegas, NVNATIONWIDE AUTO SALES
2018 GMC Sierra 1500 for sale in Hanover, MA32% below similar
2018 GMC Sierra 1500$17,493128,045 mi · Hanover, MADave Delaney's Columbia Motors
2018 GMC Sierra 1500 Denali for sale in Stafford, VA32% below similar
2018 GMC Sierra 1500 Denali$17,500149,450 mi · Stafford, VAPro Auto Select
2018 GMC Sierra 1500 2WD SLT Crew Cab for sale in San Antonio, TX31% below similar
2018 GMC Sierra 1500 2WD SLT Crew Cab$17,800154,588 mi · San Antonio, TXSouth Texas Auto
2018 GMC Sierra 1500 SLE for sale in Portage, IN30% below similar
2018 GMC Sierra 1500 SLE$17,990130,409 mi · Portage, INVILLAGE AUTO MART LLC
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE for sale in Detroit, MI30% below similar
2018 GMC Sierra 1500 4WD Double Cab 143.5" SLE$17,999143,291 mi · Detroit, MICarz Auto Sales
2018 GMC Sierra 1500 Denali for sale in Conway, SC30% below similar
2018 GMC Sierra 1500 Denali$17,999187,550 mi · Conway, SCBlackwater Auto Sales
2018 GMC Sierra 1500 SLT for sale in Round Rock, TX30% below similar
2018 GMC Sierra 1500 SLT$17,999112,614 mi · Round Rock, TXCapital City Trucks LLC
See all 481 2018 GMC Sierra 1500 listings
Sorted by how far each asking price is below the median of the same model within one model year (all current listings nationwide). Badges show listings at least 5% below that median. Listings priced under 60% of that median (often data errors or damaged vehicles) and model years with fewer than 5 comparable listings are listed after the ranked ones.
Fuel economy

2018 GMC Sierra 1500 EPA fuel economy by version

EPA versionEngineTransmissionDriveFuelCity / Hwy / Comb
Sierra 15 Hybrid 2WD5.3L 8-cylAutomatic 8-spdRWDRegular18 / 24 / 20
Sierra C15 2WD4.3L 6-cylAutomatic 6-spdRWDGasoline or E8518 / 24 / 20
Sierra K15 4WD4.3L 6-cylAutomatic 6-spd4WDGasoline or E8517 / 22 / 19
Sierra C15 2WD5.3L 8-cylAutomatic 6-spdRWDRegular16 / 23 / 19
Sierra C15 2WD5.3L 8-cylAutomatic 6-spdRWDGasoline or E8516 / 23 / 19
Sierra 15 Hybrid 4WD5.3L 8-cylAutomatic 8-spd4WDRegular16 / 21 / 18
Sierra C15 2WD5.3L 8-cylAutomatic 8-spdRWDRegular16 / 22 / 18
Sierra K15 4WD5.3L 8-cylAutomatic 6-spd4WDRegular16 / 22 / 18
Sierra K15 4WD5.3L 8-cylAutomatic 6-spd4WDGasoline or E8516 / 22 / 18
Sierra C15 2WD6.2L 8-cylAutomatic 8-spdRWDPremium15 / 21 / 17
Sierra K15 4WD6.2L 8-cylAutomatic 8-spd4WDPremium15 / 20 / 17
Sierra K15 4WD5.3L 8-cylAutomatic 8-spd4WDRegular15 / 20 / 17
EPA estimates for every 2018 GMC Sierra 1500 version tested (14, 12 shown); MPG for fuel vehicles, MPGe for electric. Source: fueleconomy.gov, as of November 6, 2026.
Safety

2018 GMC Sierra 1500 safety ratings & recalls

7 recall campaigns on file; best overall rating 5 of 5 stars.

Tested versionOverallFrontalSideRollover
2018 GMC Sierra 1500 PU/EC RWD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 PU/EC 4WD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 Hybrid PU/CC RWD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 PU/CC RWD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 PU/CC 4WD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 PU/RC RWD★★★★★★★★★★★★★★★★★★★☆
2018 GMC Sierra 1500 PU/RC 4WD★★★★★★★★★★★★★★★★★★★☆
  • AIR BAGSNHTSA campaign 26V325000 · reported May 21, 2026

    General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles. The left-side or right-side roof rail air bag (RRAB) inflator end cap may detach from the…

  • AIR BAGSNHTSA campaign 26V166000 · reported March 19, 2026

    General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew Cab vehicles. The left or right-side roof rail air bag (RRAB) inflator end cap may detach from the…

  • AIR BAGSNHTSA campaign 25V432000 · reported June 26, 2025

    General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from…

4 more recall campaigns for this model year at nhtsa.gov/recalls.

Ratings: NHTSA 5-Star Safety Ratings, as of November 6, 2026. Recalls: NHTSA Recalls, as of November 6, 2026. Always check a specific car's open recalls by its VIN at nhtsa.gov/recalls.
AutosXchange Intel

2018 GMC Sierra 1500 price activity & trends

Tracked daily since Nov 5, 2026; data as of Nov 8, 12:35 PM UTC. ▲ ▼ show the direction of change.

Latest market activity

2.6%of 464 listings had a price cut in 7 daysWhat this means: About 1 in 38 of the 464 2018 GMC Sierra 1500 listings tracked had a price cut in the last 7 days.
$428average cut, 7 daysWhat this means: When a 2018 GMC Sierra 1500 price was cut, the cut averaged $428.
—7-day price change from Nov 12
8 / 14new listings / removed from sale, 7 daysWhat this means: 6 more listings were removed than added in the last 7 days, so fewer cars are for sale than a week ago. A removed listing is not always a sale.

Since Nov 5: 2.6% of 464 listings cut (average $428), 8 new, 14 removed from sale.

Compare by location

LocationListingsMedian askingvs. nationalCut in 7 daysAvg cutSame cars, 7-day changeNew / removed 7d
United States450$24,999—2.6%$428—8 / 14
The South204$24,995● −0.0%2.8%$497—1 / 11
The Midwest124$24,900▼ −0.4%4%$377—3 / 1
The West62$26,088▲ +4.4%1.6%$273—0 / 1
The Northeast60$24,875▼ −0.5%0%——4 / 1
Texas48$24,997● −0.0%7.8%$513—0 / 3
  • 2018 GMC Sierra 1500 median asking price in Texas: $24,997 (48 listings), the same as the national $24,999.

Median asking price per day

What this means for you: The typical 2018 GMC Sierra 1500 asking price stayed within 1% over the last 2 days.

2018 GMC Sierra 1500: median asking price per dayUnited States: Nov 6 $25k, Nov 7 $25k, Nov 8 $25k; Texas: Nov 6 $23.8k, Nov 7 $25k, Nov 8 $25k$23.8k$24k$24.3k$24.5k$24.8k$25kNov 6Nov 7Nov 8United States Nov 6: $25kUnited States Nov 7: $25kUnited States Nov 8: $25kTexas Nov 6: $23.8kTexas Nov 7: $25kTexas Nov 8: $25kUnited StatesTexas
Market moversMarket TrendsCompare marketsData (JSON)

Method terms: "same cars" is the median asking price of the same listings on both dates (a same-store median), so changes in the mix of cars do not move it; a "model" is a model year, make and model with at least 30 listings from 5 dealers (a cohort); a "group of states" is a U.S. Census division.

Source: AutosXchange Intel Hub, autos-xchange.com/market. Asking prices of dealer listings tracked by AutosXchange since Nov 5, 2026, not sold prices; not seasonally adjusted. A market figure is published only with at least 30 listings from at least 5 dealers (no dealer above 40%). "Removed from sale" means a listing left the dealer's website; it is not a confirmed sale. Methodology
AutosXchange Intel Hub

Latest price changes: 2018 GMC Sierra 1500

12 cuts and 0 raises in the last 30d; median cut −1.5%.

  • ▼ Cut−$500 (−2.4%) · 2018 GMC Sierra 1500 Denali$21,216 → $20,716 · Classic Cdjrf of Arlington, Arlington, TX · 7 h ago
  • ▼ Cut−$500 (−2.3%) · 2018 GMC Sierra 1500 SLT$22,216 → $21,716 · Classic Cdjrf of Arlington, Arlington, TX · 7 h ago
  • ▼ Cut−$273 (−1.1%) · 2018 GMC Sierra 1500 1500 SLT$25,989 → $25,716 · Sterling Auto Sales (Frederick), Frederick, CO · 1 d ago
  • ▼ Cut−$825 (−3.5%) · 2018 GMC Sierra 1500 SLT$23,713 → $22,888 · McKinney Buick GMC, Mckinney, TX · 2 d ago
  • ▼ Cut−$225 (−0.8%) · 2018 GMC Sierra 1500 SLT$27,025 → $26,800 · McKinney Buick GMC, Mckinney, TX · 2 d ago
  • ▼ Cut−$223 (−0.9%) · 2018 GMC Sierra 1500 SLT$25,484 → $25,261 · Lakeside Chevrolet of Huntington, Huntington, IN · 2 d ago
All price changes in the AutosXchange Intel Hub →

Source: AutosXchange Intel Hub, autos-xchange.com/market, 2026-11-08.

By model year

GMC Sierra 1500 market data by model year

Listings and median asking price per model year. Years with fewer than 5 listings link to the listings.
Shop locally

2018 GMC Sierra 1500 for sale by city

FAQ

Frequently asked questions

What is the average asking price of a 2018 GMC Sierra 1500?
Across 481 current listings on AutosXchange, the median asking price of a 2018 GMC Sierra 1500 is $25,066. Most listings (10th to 90th percentile) ask between $17,990 and $32,121. These are dealer asking prices, not sold prices.
How many GMC Sierra 1500 are for sale?
AutosXchange currently lists 481 vehicles from 421 dealerships in 46 states.
What mileage is typical for a 2018 GMC Sierra 1500?
The median odometer reading is 112,686 miles; the middle half of listings show between 87,595 and 137,958 miles (481 listings with a published odometer).
What is a fair asking price for a 2018 GMC Sierra 1500?
Half of current listings ask between $20,999 and $28,977 (25th to 75th percentile), around a median of $25,066. Compare mileage, trim, condition and the vehicle history report before deciding; AutosXchange figures are asking prices, not sold prices.
Where are the most GMC Sierra 1500 for sale?
Texas has the most current listings (52), followed by Alabama (22).

AutosXchange market data is calculated from the asking prices of current dealer listings on AutosXchange, refreshed as dealers update their inventory. These are not sold or transaction prices and not appraisals. Listings with an asking price under $500 (placeholder prices) are excluded. Confirm price, fees and availability with the selling dealer.