$1,718 lower median
2018 Chevrolet Equinox
$12,495Median asking price · 13 qualifying listings
Middle 50%$10,994–$14,524
Find listings on VehiSales ↗Actual LT (1LT) listing photo; individual equipment may differ.
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2018 GMC Terrain prices in Massachusetts
$13,995
Median asking price
7 active listings · Updated September 13, 2026
Price your exact car
Massachusetts price overview
Typical asking price range
$11,754 – $14,748 All 7 listings · Middle 50% of asking pricesMedian asking price
$13,995Trim, mileage and condition change what a comparable vehicle costs.
As of September 13, 2026, the median asking price for a 2018 GMC Terrain in Massachusetts is $13,995, based on 7 active dealer listings tracked by VinAssessment.
Behind the price
Price range & market sample
The median asking price for a 2018 GMC Terrain in Massachusetts is $13,995 based on 7 active listings.
7 active dealer listings
Snapshot September 13, 2026 · refreshed daily
30-day asking price change: −$2,164.
Typical: $11,754–$14,748 — the middle half of 7 asking prices
Median $13,995
$9,944 low
$19K high
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded.
$14,248
Pre-owned median (6)
97,011
Average mileage
−$980
vs national average
What moves the price
Mileage
Asking prices run about $19,199 at 15K–30K miles and fall to $12,258 over 105K miles — roughly $800 for every 10,000 miles. These are different vehicles; trim, condition and equipment also vary.
Observed spread: up to $6,941Trim
The SLE typically asks $13,412, while the Denali asks $17,861 — same year, same market.
Observed spread: up to $4,449About these price differences
The $11,754–$14,748 typical range isn't randomness — two factors explain most of it:
Biggest factor in these observed spreads: Mileage. These groups contain different vehicles.
Find your mileage and trim in the configurator below.
Configure the exact car
Choose a state and trim once to update the connected price tables and charts for a 2018 GMC Terrain. Mileage adjusts the estimate only.
The configurator starts with United States prices for all trims. Select a state to explore its estimates; the report heading and overview above describe the page's state.
Trim
Total miles the car has already driven, as shown on its odometer.
mi
Estimated asking price · All trims
$14,495
$12,057
–
$16,995
656 listings · Nationwide
ⓘ This is a modelled estimate based on current listings and market data. Actual prices may vary.
Estimate assumptions
at typical mileage, nationwide
Modelled from 656 real asking prices, adjusted for mileage and location. An illustrative estimate from mixed listing groups, not matched vehicles. Not a formal appraisal.
Live 2018 GMC Terrain listings, priced by VIN
Compared with all listings
All-listings median $13,995
2018 GMC Terrain
SLE
$8,988
VIN 3GKALMEV3JL325841
−$5,007 · vs all-listings median
2018 GMC Terrain
SLE
$9,373
VIN 3GKALMEV6JL346523
−$4,622 · vs all-listings median
2018 GMC Terrain
SLE
$9,636
VIN 3GKALTEV2JL299081
−$4,359 · vs all-listings median
View 9 more priced VINs
- SLE VIN 3GKALMEV1JL374102 $10,999 −$2,996 vs median
- SLE VIN 3GKALNEU5JL253702 $10,995 −$3,000 vs median
- SLE VIN 3GKALMEV4JL363658 $10,995 −$3,000 vs median
- SLT VIN 3GKALPEX2JL295492 $11,237 −$2,758 vs median
- SLE VIN 3GKALTEV7JL157549 $12,900 −$1,095 vs median
- SLE VIN 3GKALMEV5JL402029 $13,000 −$995 vs median
- SLT VIN 3GKALVEX5JL256934 $13,199 −$796 vs median
- SLE VIN 3GKALTEV2JL361840 $13,800 −$195 vs median
- SLT VIN 3GKALPEV8JL356648 $15,400 +$1,405 vs median
Price differences are not deal ratings. Compare equipment, mileage and vehicle history before judging a price.
Every VIN links to a full market report: decode, active listings and the local price band.
A little comparison goes a long way
About this comparison ↓What else could you drive?
Compare 2018 GMC Terrain with other models from the same year. Choose the trims that matter to you.
As of September 13, 2026, among same-year alternatives to the 2018 GMC Terrain in this catalog, the 2018 Ford Escape has the lowest median asking price ($9,850, 41 listings with photos) and the 2018 Jeep Compass the highest ($13,487, 51 listings).
Comparison catalog · Snapshot September 13, 2026, 19:00 UTC · Only listings with photos. This sample is separate from the price overview above and its figures differ.
Your comparison starting point
2018 GMC Terrain
All trims · Massachusetts
The price overview above is this page’s reference figure. The comparison below uses its own catalog sample: 6 listings with photos, catalog median $14,213 (the baseline for the “lower/higher” badges).
Middle 50%: $13,995–$14,995
Explore the alternatives
$726 lower median
2018 Jeep Compass
$13,487Median asking price · 51 qualifying listings
Middle 50%$11,999–$14,603
Find listings on VehiSales ↗Actual several trims listed listing photo; individual equipment may differ.
$1,218 lower median
2018 Nissan Rogue
$12,995Median asking price · 42 qualifying listings
Middle 50%$10,995–$15,695
Find listings on VehiSales ↗Actual SL AWD listing photo; individual equipment may differ.
$1,218 lower median
2018 Hyundai Tucson
$12,995Median asking price · 16 qualifying listings
Middle 50%$11,890–$13,689
Find listings on VehiSales ↗Actual SE Standard listing photo; individual equipment may differ.
$4,363 lower median
2018 Ford Escape
$9,850Median asking price · 41 qualifying listings
Middle 50%$8,995–$12,429
Find listings on VehiSales ↗Actual SEL listing photo; individual equipment may differ.
No alternatives have a lower median in this selection. Broaden your filters or turn off “Lower median price only”.
Compare prices side by side
| Model / trim | Median | Middle 50% | Listings |
|---|---|---|---|
| 2018 GMC Terrain All trims | see price overview above | $13,995–$14,995 | 6 |
| 2018 Chevrolet Equinox All trims | $12,495 | $10,994–$14,524 | 13 |
| 2018 Jeep Compass All trims | $13,487 | $11,999–$14,603 | 51 |
| 2018 Nissan Rogue All trims | $12,995 | $10,995–$15,695 | 42 |
| 2018 Hyundai Tucson All trims | $12,995 | $11,890–$13,689 | 16 |
| 2018 Ford Escape All trims | $9,850 | $8,995–$12,429 | 41 |
What these prices mean
Only catalog listings with photos are included. Trim names do not verify equivalent equipment. Prices are asking prices, not completed sales. Alternatives share the body style and class of the source model; the nearest model years are used when the same year has too few listings. Price differences are not a valuation adjustment or guaranteed savings.
Snapshot: September 13, 2026, 19:00 UTC. 1 source listings excluded by statistical price screening; this does not verify that every deposit or payment ad has been removed.
VehiSales opens in a new tab with the model, year and known mileage range. Confirm trim, fuel, drivetrain, condition and location on VehiSales; its live inventory may differ.
2018 GMC Terrain: a fair price for your mileage
Mileage means the miles recorded on the odometer. Compare asking prices in your mileage band, then select a trim — the equipment version — to narrow the comparison where data is available.
Across the national mileage bands, the overall difference is roughly $800 per 10,000 miles. These are different vehicles, not depreciation of the same car.
Region · trim United States · All trims
Active listings 656
Median asking price $14,495
Mileage means the total miles on the odometer. Each point shows the median asking price for a mileage band; shaded areas show the middle 50% of prices.
Swipe the chart horizontally to see every mileage band.
Compare all trims at the same mileage
Compare like-for-like mileage
United States · all states · September 13, 2026
Read across a row to compare trims at a similar odometer reading. Each price is the median asking price for that group, not a valuation of your exact car.
Scroll sideways to compare all trims. Mileage stays visible on the left.
| Mileage (odometer) | All listings | SLE | SLT | Denali |
|---|---|---|---|---|
| 15K–30K miles | $19,199 | — | — | — |
| 30K–45K miles | $19,995 | $17,163 | $20,259 | $21,346 |
| 45K–60K miles | $18,144 | $17,371 | $20,092 | $20,833 |
| 60K–75K miles | $17,344 | $15,853 | $18,004 | $19,053 |
| 75K–90K miles | $15,954 | $14,923 | $16,484 | $18,386 |
| 90K–105K miles | $14,652 | $13,350 | $14,734 | $17,291 |
| Over 105K miles | $12,258 | $11,838 | $12,842 | $14,867 |
“—” means insufficient data: at least 3 listings per trim and mileage band, or 5 for all trims combined. Equipment, condition and location can still differ within a row.
Counts cover the selected region and trim, including listings without usable mileage. Thin mileage bands and rare or unknown trims may be omitted from the chart.
View the full national mileage price table
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 15K–30K miles | 5 listings | $19,199 | $15K–$20K |
| 30K–45K miles | 17 listings | $19,995 | $18K–$21K |
| 45K–60K miles | 44 listings | $18,144 | $17K–$21K |
| 60K–75K miles | 86 listings | $17,344 | $16K–$19K |
| 75K–90K miles | 84 listings | $15,954 | $15K–$18K |
| 90K–105K miles | 117 listings | $14,652 | $13K–$16K |
| Over 105K miles | 302 listings | $12,258 | $11K–$14K |
United States — all states. These bands combine different trims, conditions and listing histories. They do not hold trim or condition constant. National data; the mix of vehicles in Massachusetts may differ.
2018 GMC Terrain: price by trim
United States · all states · September 13, 2026. Counts and prices below are national totals for each trim. The shared market filters update this table for your selected state and highlight your trim.
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| SLE | 350 listings | $13,412 | $11K–$15K | |
| SLT | 163 listings | $14,647 | $13K–$17K | |
| Denali | 143 listings | $17,861 | $16K–$20K |
National data; the mix of vehicles in Massachusetts may differ.
Understand the differences
2018 GMC Terrain: VIN configurations and specifications
Multiple VIN patterns can share the same trim. Compare their recorded equipment, then open a specification page for the full details.
-
SLT AWD 1.5L 4-cyl · AWD VIN pattern: 3GKALVEV · year code J$14,407 Median asking price · U.S. 26 priced listings · September 13, 2026
-
Denali 2L 4-cyl · FWD VIN pattern: 3GKALSEX · year code J$17,680 Median asking price · U.S. 45 priced listings · September 13, 2026
-
SLE AWD 2L 4-cyl · AWD VIN pattern: 3GKALTEX · year code J$14,495 Median asking price · U.S. 44 priced listings · September 13, 2026
-
SLT 2L 4-cyl · FWD VIN pattern: 3GKALPEX · year code J$14,999 Median asking price · U.S. 33 priced listings · September 13, 2026
Show 11 more configurations
-
SLT AWD 2L 4-cyl · AWD VIN pattern: 3GKALVEX · year code J$14,929 Median asking price · U.S. 47 priced listings · September 13, 2026
-
Denali AWD 2L 4-cyl · AWD VIN pattern: 3GKALXEX · year code J$17,568 Median asking price · U.S. 90 priced listings · September 13, 2026
-
SLE 1.5L 4-cyl · FWD VIN pattern: 3GKALMEV · year code J$12,995 Median asking price · U.S. 147 priced listings · September 13, 2026
-
SLT Diesel 1.6L 4-cyl · FWD VIN pattern: 3GKALREU · year code J265 VINs in our database Observed VINs, not production totals
-
SLT Diesel AWD 1.6L 4-cyl · AWD VIN pattern: 3GKALWEU · year code J$14,813 Median asking price · U.S. 5 priced listings · September 13, 2026
-
SLT 1.5L 4-cyl · FWD VIN pattern: 3GKALPEV · year code J$13,697 Median asking price · U.S. 37 priced listings · September 13, 2026
-
SLE 2L 4-cyl · FWD VIN pattern: 3GKALMEX · year code J$13,429 Median asking price · U.S. 34 priced listings · September 13, 2026
-
SL 1.5L 4-cyl · FWD VIN pattern: 3GKALLEV · year code J54 VINs in our database Observed VINs, not production totals
-
SLE AWD 1.5L 4-cyl · AWD VIN pattern: 3GKALTEV · year code J$13,502 Median asking price · U.S. 96 priced listings · September 13, 2026
-
SLE Diesel AWD 1.6L 4-cyl · AWD VIN pattern: 3GKALUEU · year code J$14,000 Median asking price · U.S. 9 priced listings · September 13, 2026
-
SLE Diesel 1.6L 4-cyl · FWD VIN pattern: 3GKALNEU · year code J$12,995 Median asking price · U.S. 6 priced listings · September 13, 2026
Where these specifications come from
Specifications combine decoded VIN data, including NHTSA vPIC , with inventory records. If decoding does not identify a trim, a recorded inventory trim may be shown. VIN patterns do not confirm every installed option.
Counts describe observed VINs in our database, not factory production totals. Prices are median asking prices from qualifying U.S. listings, not original MSRP. Check the vehicle’s build sheet for exact equipment.
FACTORY REFERENCE
2018 GMC Terrain factory brochure
Model-year reference for features and equipment. Actual VIN equipment may differ.
No verified factory brochure is currently listed for this exact model year.
Need equipment for a specific vehicle? Look up its factory window sticker →
Price history
Change state or trim for this report →
View national price history · all trims
Median asking price by month — U.S., all trims · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 GMC Terrain is $14,577 (September 2026) — down 8.8% from $15,990 in September 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| September 2026 | $14,577 | $12K–$17K | 492 |
| August 2026 | $14,595 | $12K–$17K | 881 |
| July 2026 | $14,842 | $13K–$17K | 846 |
| June 2026 | $14,900 | $13K–$17K | 789 |
| May 2026 | $14,994 | $13K–$17K | 800 |
| April 2026 | $14,990 | $13K–$17K | 741 |
| March 2026 | $14,953 | $13K–$17K | 864 |
| February 2026 | $14,798 | $13K–$16K | 820 |
| January 2026 | $14,798 | $13K–$17K | 731 |
| December 2025 | $14,859 | $13K–$17K | 543 |
| November 2025 | $14,898 | $13K–$17K | 436 |
| October 2025 | $15,665 | $14K–$18K | 490 |
| September 2025 | $15,990 | $14K–$18K | 245 |
2018 GMC Terrain inventory across the U.S.
See how asking prices vary across states. Looking for a 2018 GMC Terrain for sale near you? Open your state's price guide to compare its market, then follow the local listings link to browse available vehicles.
United States · all trims · snapshot September 13, 2026. Explore state markets below. Prices and counts cover all trims in each state; the full comparison table remains available below the map.
View the U.S. inventory map
What does this map show?
The numbers are active listings, not prices. Badges mark the 8 busiest mapped states to keep the map readable; other states can also have listings.
Hover over a state or focus it with your keyboard for details. Click a linked state or its number to open that state's price page.
State details will appear here. On a phone, tap a linked state to open its prices; use the full table for easier browsing.
Scroll the map sideways on smaller screens. Numbers stay large enough to read.
Most active listings
Other states with active listings
No active listings or insufficient data
Alaska and Hawaii are not drawn on this map. Where qualifying data is available, they appear in the full state table. Grey does not necessarily mean no cars are for sale.
EXPLORE THE YEARS
Other GMC Terrain years
Same model, a different chapter. Start with a nearby year, or open the complete timeline.
Other years show national prices; 2018 shows Massachusetts prices.
An earlier model year
2017
GMC Terrain
Typical asking price
$11,282
Explore this year →
You are here
2018
GMC Terrain
Massachusetts
Typical asking price
$13,995
Your current report
A newer model year
2019
GMC Terrain
Typical asking price
$15,626
Explore this year →
See how model-year prices compare
U.S. market · All trimsDifferent model years, shown on the same dollar scale. Median asking price where available; otherwise average. These are different vehicles, not a forecast of your car’s value.
Your 2018 Massachusetts price is shown above. The bars below show other years nationwide, not prices in this state.
- 2027 $38,605 Median
- 2026 $35,540 Median
- 2025 $27,999 Median
- 2024 $24,475 Median
- 2023 $24,582 Median
- 2022 $21,995 Median
- 2021 $18,852 Median
- 2020 $17,944 Median
- 2019 $15,626 Median
- 2017 $11,282 Median
- 2016 $10,330 Median
- 2015 $9,019 Median
- 2014 $7,999 Median
- 2013 $7,961 Median
- 2012 $6,995 Median
- 2011 $5,969 Median
Showing the newest 16 priced model years. Open the complete timeline below for older years.
Explore all 17 other model years
Pick a year to open its price report. Prices compare different vehicles and equipment, not the changing value of one car.
Nearby model years
2014
$7,999
2015
$9,019
2016
$10,330
2017
$11,282
2019
$15,626
2020
$17,944
2021
$18,852
2022
$21,995
More model years
MEET THE REST OF THE LINEUP
More 2018 GMC prices
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GMC Savana
Explore this model →Prices shown for other models are average asking prices in the national snapshot. Photos are representative; trim and equipment vary.
What would a 2018 GMC Terrain cost per month?
Estimate the monthly payment on a $13,412 vehicle. Move the numbers to match your own loan.
10% down
7.0% is an illustrative starting rate — use your own lender quote.
Loan term
Estimated monthly payment
$239
per month
60 months · 7.0% APR · $1,341 down
Amount financed
$12,071
Total interest
$2,269
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Before you buy
A few important steps can help you buy with confidence.
- Check title and accident history
- Arrange an independent inspection
- Review factory equipment
- Check recalls by VIN
Frequently asked questions
Why do 2018 GMC Terrain prices range from $9,944 to $18,515 in Massachusetts?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $11,754 and $14,748 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 GMC Terrain?
Across the lowest- and highest-mileage groups, asking prices differ by roughly $800 per 10,000 miles. These groups contain different vehicles: this is not a same-trim adjustment or a forecast for one car. Compare the mileage and trim tables, then check condition, equipment and vehicle history.
Do GMC Terrain prices in Massachusetts differ from the rest of the country?
Yes. The average in Massachusetts is $13,685, which is $980 below the national average of $14,665. Local supply, demand and transport costs all play a part.
How many 2018 GMC Terrain are for sale in Massachusetts right now?
7 in total. Counts refresh daily from live dealer inventory.
Is this the trade-in value or private-party value of my 2018 GMC Terrain?
These figures describe dealer asking prices, not trade-in offers, private-party sale values or completed sale prices. Use them to compare advertised vehicles. To find out what a buyer or dealer would pay for your car, request an offer that takes its mileage, condition, equipment and history into account.
How we calculate these prices
We track 7 active listings for this vehicle across dealer sites in Massachusetts, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Pull the original window sticker by VIN →
Own a 2018 GMC Terrain? See what it's worth →
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