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1,665 listings
  • New Listing
    $20,998
    fair price
    $208 below market
    • 46,025 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • CarMax Naperville (4 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Naperville, IL / 4 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV5ML390677
    Stock: 26990448
    Certified Pre-Owned: No

  • Price Drop
    $20,888
    fair price
    $259 below market
    • 54,140 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Napleton Downtown Chevrolet Buick GMC (27 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Chicago, IL / 27 miles away from Naperville, IL

    The Napleton Auto Group promotes a no pressure buying experience that puts the customer in charge of the buying process, and for over 80 years, the Na...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV8ML373548
    Stock: T24094A
    Certified Pre-Owned: No
    Listed since: 03-10-2025

  • $18,801
    fair price
    $382 below market
    • 77,336 miles
    • 1 accident, 3 owners, personal use only
    • 4cyl automatic
    • Zeigler Cadillac of Lincolnwood (26 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Lincolnwood, IL / 26 miles away from Naperville, IL

    Recent Arrival! 2021 GMC Terrain SLT Summit White BACKUP CAMERA*, BLUETOOTH w/MUSIC STREAMING*, FULLY SERVICED & MAINTAINED*, LOW FINANCING RATES AVAI...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV2ML356715
    Stock: P4447
    Certified Pre-Owned: No
    Listed since: 04-17-2025

    • 9,267 miles
    • No accidents, 1 owner, government vehicle
    • 4cyl automatic
    • Harvard Chevrolet GMC (50 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Harvard, IL / 50 miles away from Naperville, IL

    Summit White 2021 GMC Terrain SLE AWD 9-Speed Automatic 1.5L DOHC AWD, Floor Liner Package (LPO), Front & Rear All-Weather Floor Liners (LPO), Integra...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALTEV5ML376868
    Stock: P0040
    Certified Pre-Owned: Yes
    Listed since: 04-09-2025

  • Price Drop
    • 28,265 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Packey Webb Ford (6 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Downers Grove, IL / 6 miles away from Naperville, IL

    ** Ford Blue Certified** Great Fuel Economy ~ 25/28 City/Highway MPG** Balance of Factory Warranty** Clean Vehicle History** Local Trade** Low Mi...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV8ML372356
    Stock: P7327
    Certified Pre-Owned: No
    Listed since: 01-31-2025

  • Price Drop
    • 89,677 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Hawk Nissan of St. Charles (12 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Saint Charles, IL / 12 miles away from Naperville, IL

    2021 GMC Terrain SLE SLEEbony Twilight Metallic 1.5L DOHC FWDCome see this 2021 GMC Terrain SLE! It's the one you've been hoping for! This Terrain com...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV2ML314544
    Stock: N230519S
    Certified Pre-Owned: No
    Listed since: 03-07-2025

  • New Listing
    • 42,017 miles
    • No accidents, 2 owners, personal use
    • 4cyl automatic
    • CarMax Naperville (4 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Naperville, IL / 4 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV9ML354640
    Stock: 27212646
    Certified Pre-Owned: No

  • New Listing
    • 45,388 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 4cyl automatic
    • CarMax Kenosha (54 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Kenosha, WI / 54 miles away from Naperville, IL

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV9ML349048
    Stock: 27345876
    Certified Pre-Owned: No

  • Price Drop
    $23,995
    great price
    $3,796 below market
    • 26,668 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Napleton Buick GMC Crystal Lake (32 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Crystal Lake, IL / 32 miles away from Naperville, IL

    The Napleton Auto Group promotes a no pressure buying experience that puts the customer in charge of the buying process, and for over 80 years, the Na...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV3NL119205
    Stock: 124271A
    Certified Pre-Owned: No
    Listed since: 02-26-2025

  • Price Drop
    $24,434
    great price
    $3,229 below market
    • 36,279 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Zeigler Buick GMC of Lincolnwood (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lincolnwood, IL / 27 miles away from Naperville, IL

    2022 GMC Terrain SLT White Frost Tricoat AWD*, NAVIGATION w/BACKUP CAMERA*, BLUETOOTH w/MUSIC STREAMING*, BLIND SPOT MONITOR*, PRE-COLLSION WARNING SY...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV7NL117697
    Stock: PA7862
    Certified Pre-Owned: No
    Listed since: 03-04-2025

  • New Listing
    $25,962
    great price
    $3,327 below market
    • 13,639 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Heller Ford (86 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in El Paso, IL / 86 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV6NL117478
    Stock: 2500172A
    Certified Pre-Owned: No
    Listed since: 05-05-2025

  • Price Drop
    Stock photo**
    $23,699
    great price
    $2,194 below market
    • 52,235 miles
    • No accidents, 1 owner, rental vehicle
    • 4cyl automatic
    • Currie Motors Chevrolet (17 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Forest Park, IL / 17 miles away from Naperville, IL

    Ebony Twilight Metallic 2022 GMC Terrain SLT FWD 9-Speed Automatic 1.5L DOHC **ONE OWNER**, **ACCIDENT FREE CARFAX**, **LEATHER**, Accident Free Carfa...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    28 Combined MPG (25 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV3NL255703
    Stock: P9165
    Certified Pre-Owned: No
    Listed since: 04-02-2025

  • Price Drop
    $23,365
    good price
    $1,763 below market
    • 24,984 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Zeigler Subaru of Kenosha (55 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Kenosha, WI / 55 miles away from Naperville, IL

    2022 GMC Terrain SLE 4WD, Bluetooth, Backup Camera, Navigation System, Android Auto, Apple Carplay, Power Seat, Touch Screen Radio, MP3 Player, Remote...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALTEV8NL211429
    Stock: L16-3043A
    Certified Pre-Owned: No
    Listed since: 03-29-2025

  • Price Drop
    $27,143
    good price
    $2,031 below market
    • 26,947 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 4cyl automatic
    • Patriot Hyundai of Bradley (45 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bourbonnais, IL / 45 miles away from Naperville, IL

    2022 GMC Terrain Denali Marine Metallic 1.5L DOHC AWDCARPLAY, ANDROID AUTO, BLUETOOTH, FACTORY WARRANTY, NAVIGATION, PANORAMIC ROOF, REMOTE START, H...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALXEV7NL260418
    Stock: BU109
    Certified Pre-Owned: No
    Listed since: 03-26-2025

  • $27,990
    good price
    $924 below market
    • 29,373 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Zeigler Buick GMC of Lincolnwood (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Lincolnwood, IL / 27 miles away from Naperville, IL

    2022 GMC Terrain Denali White Frost Tricoat AWD*, NAVIGATION w/BACKUP CAMERA*, BLUETOOTH w/MUSIC STREAMING*, BLIND SPOT MONITOR*, PRE-COLLSION WARNING...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALXEVXNL192213
    Stock: PA7922
    Certified Pre-Owned: No
    Listed since: 03-24-2025

  • $26,750
    good price
    $1,374 below market
    • 21,335 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Rizza Buick GMC (21 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Tinley Park, IL / 21 miles away from Naperville, IL

    CARFAX One-Owner. Clean CARFAX. Bought Here - Serviced Here - Sold Here, Low Miles, AWD, Adaptive Cruise Control, Front dual zone A/C, GMC Pro Safety ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEVXNL190644
    Stock: 23670T
    Certified Pre-Owned: Yes
    Listed since: 03-08-2025

  • New Listing
    $24,995
    fair price
    $308 below market
    • 19,518 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Schepel Buick GMC (45 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Merrillville, IN / 45 miles away from Naperville, IL

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    27 Combined MPG (25 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV9NL112320
    Stock: ST403A
    Certified Pre-Owned: Yes
    Listed since: 04-26-2025

  • $23,495
    fair price
    $301 below market
    • 37,673 miles
    • 1 accident, 1 owner, personal use only
    • 4cyl automatic
    • Napleton Buick GMC Crystal Lake (32 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Crystal Lake, IL / 32 miles away from Naperville, IL

    The Napleton Auto Group promotes a no pressure buying experience that puts the customer in charge of the buying process, and for over 80 years, the Na...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALTEVXNL139455
    Stock: 225029B
    Certified Pre-Owned: No
    Listed since: 04-04-2025

  • Price Drop
    $19,495
    fair price
    $698 below market
    • 90,410 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 4cyl automatic
    • DriveTime of South Chicago (24 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Midlothian, IL / 24 miles away from Naperville, IL

    Shop at DriveTime: Get started on your personalized car-buying journey today. With no credit impact, you can get approved for your real, personalized ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV5LL240329
    Stock: 1670042015
    Certified Pre-Owned: No
    Listed since: 04-14-2025

  • $20,900
    fair price
    $157 below market
    • 71,812 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Bredemann Toyota (24 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Park Ridge, IL / 24 miles away from Naperville, IL

    CARFAX One-Owner.Ebony Twilight Metallic 2022 GMC Terrain SLE AWD 1.5L DOHC 9-Speed AutomaticAWD.For 100 years, families have trusted the BREDEMANN fa...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALTEV3NL129947
    Stock: TP7733
    Certified Pre-Owned: No
    Listed since: 03-01-2025

  • $21,366
    fair price
    $618 below market
    • 87,461 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Enterprise Car Sales Orland Hills (20 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Orland Hills, IL / 20 miles away from Naperville, IL

    Transfer of vehicle from another location to your neighborhood Enterprise Car Sales may require payment of a non-refundable transfer fee to begin the ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV7NL156371
    Stock: 8GCTKL
    Certified Pre-Owned: No
    Listed since: 04-15-2025

Showing 1 - 21 out of 1,665 listings

Consumer Reviews for the GMC Terrain

Read recent reviews for the GMC Terrain
Overall Consumer Rating
4.1 out of 5 stars55 Reviews
Write a vehicle reviewSee all 55 reviews
  • 5 star
    (58%)
  • 4 star
    (18%)
  • 3 star
    (7%)
  • 2 star
    (9%)
  • 1 star
    (7%)
4 out of 5 stars

2021 GMV Terrain SLT

Stgcret, 04/19/2021
2021 GMC Terrain SLT 4dr SUV (1.5L 4cyl Turbo 9A)
As of today, April 19/2023 I still own my Terrain purchased in November 2020. It has, so far, not given me a minute's issue. The 1.5L Turbo is "okay" but the 2.0L Turbo is so much better. The Terrain is a very well thought out vehicle. Back seat flip flat at the push of a button and easily clicks back in to place. Seats are at hip height, which at 71, makes them very easy to slide … in and out. The front bucket seats are fairly comfortable with many power adjustments. The front seats could use another 1/2" to 1" of width. I would buy this beauty again. UPDATE: I purchase my 2021 GMC Terrain brand new in November 2020 before the chip shortage, that isn't an issue with the 2021 at all. I just hit 20,000 miles a couple of weeks ago and all-in-all has been a pleasure to drive. I'm a big guy of 6' 2" and 285 and I easily slide in and out of my Terrain. Quiet ride and efficient and peppy 1.5L Turbo motor, although I would have preferred the 2.0L Turbo like I had in my 2018 Terrain, but the 2020 was the last year for the 2.0L On the SLT, that I have, are many positions to adjust the front seat and I do prefer the leather over cloth seats. For a 2-row seat SUV, there is plenty of room and the seats fold down at the touch of button or pull that works with the effort of one finger. I really like the info system and Sirius Radio. I have not used the Navigation or phone interface because I just don't need to. One oddball fact I discovered though is that when you want to take out the Cabin Filter, you have to use a 5.5 mm socket and that size is difficult to find. They need to go to a more conventional size like a 6 mm or 1/4 inch. UPDATE: I drove my 2021 Terrain SLT Elevation Edition out of the dealer showroom on 11/27/2020. I am 6' 2" and 72 yrs old. I specifically like the way I can slide in and easily slide out of the Terrain. I also find the front seat very comfortable and easy to adjust and has a nice lumbar support. I don't find the road noise so bad, but maybe that is because I have Talk Radio on all the time. I do agree that a 2.0 Turbo would be a better engine option. I owned a 2018 Terrain Denali with the 2.0L and I thought I was in a rocket when I stepped on the gas. I have owned my 2021 for 31 months now and have put 21,530 miles on the ol' girl and have not had a single issue, but there was one "what were they thinking moment" the screw for the driving compartment air filter is a 5.5 mm! I did change that filter at 18,000 miles although the manual called for 30,000 miles. Such an odd and hard to find size. I have changed the oil and filter every 5,000 miles and rotated the tires. I would like to see the same vehicle but 10" to 12" longer and maybe 4" to 6" wider to fit just a bit more beefy seat like the Tahoe has. Other than that I will most likely buy another Terrain and for sure if they reinstate the 2.0L Turbo.
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Used 2021 GMC Terrain in Naperville, IL Values

Estimated values
2021 GMC Terrain SLE 4dr SUV (1.5L 4cyl Turbo 9A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$17,669$19,581$21,500
Clean$17,292$19,155$21,020
Average$16,665$18,443$20,221
Rough$15,850$17,519$19,183

The average list price of a used 2021 GMC Terrain in Naperville, Illinois is $23,582. The average mileage on a used GMC Terrain 2021 for sale in Naperville, Illinois is 44,307. Based on the average mileage of 44,307 for used 2021 GMC Terrain for sale in Naperville, IL and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Terrain 2021 in Naperville, Illinois to be $16,665.

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