Sell My Car
AutosXchange market data

2018 GMC Terrain prices & market data

What dealers are asking for the 2018 GMC Terrain right now, from 51 current listings at 51 dealerships across 27 states.

Asking prices of current listings · AutosXchange live dealer listings, November 5, 2026 · not sold prices

51Listings for sale now
$13,800Median asking price
$10,398–$16,990Typical range (10th–90th percentile)
112,910Median miles (51 listings with odometer)
51Dealerships listing it
See 2018 GMC Terrain listingsAll GMC Terrain yearsOther GMC models
Price vs. mileage

2018 GMC Terrain: asking price vs. mileage

On the trend line, every 10,000 more miles goes with about $410 lower asking price.

2018 GMC Terrain asking price vs. mileageScatter of 48 current 2018 GMC Terrain listings (asking price against odometer miles), with a least-squares trend line of about $-410 per 10,000 miles.$8k$10k$12k$14k$16k$18k$20k025k50k75k100k125k150kOdometer (miles)Asking price
Each dot is one current listing; the line is a straight least-squares fit over all of them. 3 extreme listings (top/bottom 1% of price or mileage) are outside the chart.
Price distribution

2018 GMC Terrain: how asking prices are spread

Half of listings ask between $11,450 and $14,950; the most common band is $14,000–$15,000 (9 listings).

2018 GMC Terrain asking price distributionHistogram of 51 current 2018 GMC Terrain asking prices in 14 bins of $1,000; median $13,800.035810$9k–$10k: 5 listings (includes 1 below $9k)$10k–$11k: 8 listings$11k–$12k: 4 listings$12k–$13k: 8 listings$13k–$14k: 5 listings$14k–$15k: 9 listings$15k–$16k: 3 listings$16k–$17k: 6 listings$17k–$18k: 0 listings$18k–$19k: 1 listing$19k–$20k: 1 listing$20k–$21k: 0 listings$21k–$22k: 0 listings$22k–$23k: 1 listing (includes 1 above $23k)≤$9k$12k$15k$18k$21k$23k+Median $13,800Asking price (bar height = number of listings)
Bars count listings in $1,000 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 Terrain: listings by state (top 10)

Texas has the most, with 8 listings (16% of 51).

2018 GMC Terrain listings by stateNumber of current 2018 GMC Terrain listings by dealer state: Texas 8, Arizona 3, Florida 3, Indiana 3, Kentucky 3, Pennsylvania 3, Colorado 2, Minnesota 2, North Carolina 2, New York 2.TexasTexas: 8 · 16%8 · 16%ArizonaArizona: 3 · 6%3 · 6%FloridaFlorida: 3 · 6%3 · 6%IndianaIndiana: 3 · 6%3 · 6%KentuckyKentucky: 3 · 6%3 · 6%PennsylvaniaPennsylvania: 3 · 6%3 · 6%ColoradoColorado: 2 · 4%2 · 4%MinnesotaMinnesota: 2 · 4%2 · 4%North CarolinaNorth Carolina: 2 · 4%2 · 4%New YorkNew York: 2 · 4%2 · 4%
Counts current AutosXchange listings by the selling dealer's state (27 states in total).
By trim

2018 GMC Terrain: listings by trim (top 3)

SLE is the most-listed trim (21 listings); Denali has the highest median asking price of these, $16,722.

2018 GMC Terrain listings by trimSLE: 21 listings, median $13,995; SLT: 11 listings, median $12,995; Denali: 7 listings, median $16,722.SLESLE: 21 · median $14k21 · median $14kSLTSLT: 11 · median $13k11 · median $13kDenaliDenali: 7 · median $16.7k7 · median $16.7k
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 Terrain for sale now: best value first

2018 GMC Terrain SLE for sale in Lacombe, LA31% below similar
2018 GMC Terrain SLE$8,988120,290 mi · Lacombe, LAArabi Auto Group
2018 GMC Terrain for sale in Houston, TX29% below similar
2018 GMC Terrain$9,250150,121 mi · Houston, TXA2 Motors Houston
2018 GMC Terrain for sale in Richmond, VA28% below similar
2018 GMC Terrain$9,390131,000 mi · Richmond, VASam's Auto Inc.
2018 GMC Terrain SLT for sale in Nashville, TN24% below similar
2018 GMC Terrain SLT$9,900135,043 mi · Nashville, TNBBB AUTO SALES
2018 GMC Terrain SLE for sale in Woodbridge, VA23% below similar
2018 GMC Terrain SLE$9,999125,262 mi · Woodbridge, VACars Of Fairfax
2018 GMC Terrain for sale in Toledo, OH20% below similar
2018 GMC Terrain$10,398112,910 mi · Toledo, OHAutoMatch USA INC
2018 GMC Terrain for sale in Plainfield, IN17% below similar
2018 GMC Terrain$10,69986,477 mi · Plainfield, INRapid 500
2018 GMC Terrain SLT Diesel for sale in Stokesdale, NC15% below similar
2018 GMC Terrain SLT Diesel$10,990144,879 mi · Stokesdale, NCKey Automotive Group
2018 GMC Terrain SLE for sale in Detroit, MI15% below similar
2018 GMC Terrain SLE$10,995134,822 mi · Detroit, MIBassett Used Cars LLC
2018 GMC Terrain for sale in Philadelphia, PA15% below similar
2018 GMC Terrain$10,995124,821 mi · Philadelphia, PAImpressive Auto Sales
2018 GMC Terrain SLE for sale in Salem, OR15% below similar
2018 GMC Terrain SLE$10,995123,429 mi · Salem, ORPRESTIGE AUTO CENTER LLC
2018 GMC Terrain SLE for sale in Minneapolis, MN15% below similar
2018 GMC Terrain SLE$10,99997,602 mi · Minneapolis, MNLake Street Auto
2018 GMC Terrain for sale in Tampa, FL15% below similar
2018 GMC Terrain$10,999110,362 mi · Tampa, FLQLD AUTO INC
2018 GMC Terrain SLE for sale in Birmingham, AL8% below similar
2018 GMC Terrain SLE$11,900145,915 mi · Birmingham, ALAllStarz Auto Group
2018 GMC Terrain SLT for sale in Corona, NY7% below similar
2018 GMC Terrain SLT$11,995115,200 mi · Corona, NY1 Stop Auto Sales Inc
2018 GMC Terrain Denali for sale in Lindon, UT7% below similar
2018 GMC Terrain Denali$11,995120,649 mi · Lindon, UTPLANET AUTO SALES
2018 GMC Terrain SLT for sale in West Bend, WI7% below similar
2018 GMC Terrain SLT$11,999101,353 mi · West Bend, WILynch Buick GMC of West Bend
2018 GMC Terrain FWD 4dr SLT for sale in Wichita, KS5% below similar
2018 GMC Terrain FWD 4dr SLT$12,30090,463 mi · Wichita, KSPrestige Auto Sales
2018 GMC Terrain for sale in Mcallen, TX
2018 GMC Terrain$12,500115,896 mi · Mcallen, TXRODRIGUEZ AUTO SALES
2018 GMC Terrain SLT for sale in Tampa, FL
2018 GMC Terrain SLT$12,599122,441 mi · Tampa, FLBlue Ocean Auto Sales LLC
2018 GMC Terrain SLE for sale in Amherst, NY
2018 GMC Terrain SLE$12,81196,487 mi · Amherst, NYNorthtown Kia
2018 GMC Terrain SLE SUV 3GKALTEVXJL375551 for sale in Newark, NJ
2018 GMC Terrain SLE SUV 3GKALTEVXJL375551$12,990120,891 mi · Newark, NJGarden Auto Sales
2018 GMC Terrain SLT for sale in Phoenix, AZ
2018 GMC Terrain SLT$12,995122,578 mi · Phoenix, AZDR Auto Sales
2018 GMC Terrain SLE for sale in East Jourdanton, TX
2018 GMC Terrain SLE$12,995149,748 mi · East Jourdanton, TXSwans Autoplex
See all 51 2018 GMC Terrain 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.
By model year

GMC Terrain market data by model year

Listings and median asking price per model year. Pages for years with fewer than 5 listings show the listings only.
Shop locally

2018 GMC Terrain for sale by city

FAQ

Frequently asked questions

What is the average asking price of a 2018 GMC Terrain?
Across 51 current listings on AutosXchange, the median asking price of a 2018 GMC Terrain is $13,800. Most listings (10th to 90th percentile) ask between $10,398 and $16,990. These are dealer asking prices, not sold prices.
How many GMC Terrain are for sale?
AutosXchange currently lists 51 vehicles from 51 dealerships in 27 states.
What mileage is typical for a 2018 GMC Terrain?
The median odometer reading is 112,910 miles; the middle half of listings show between 91,701 and 123,544 miles (51 listings with a published odometer).
What is a fair asking price for a 2018 GMC Terrain?
Half of current listings ask between $11,450 and $14,950 (25th to 75th percentile), around a median of $13,800. Compare mileage, trim, condition and the vehicle history report before deciding; AutosXchange figures are asking prices, not sold prices.
Where are the most GMC Terrain for sale?
Texas has the most current listings (8), followed by Arizona (3).

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.