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1,726 listings
  • $12,995
    great price
    • 124,648 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 5 Seats, 26 City / 30 Hwy MPG
    • Crypto Cars (441 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Burleson, TX / 441 miles away from McAllen, TX

    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: 3GKALPEVXML332730
    Stock: 332730
    Certified Pre-Owned: No

    • 33,382 miles
    • No accidents, 1 owner, personal use
    • 5 Seats, 26 City / 30 Hwy MPG
    • CarMax Corpus Christi (117 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Corpus Christi, TX / 117 miles away from McAllen, TX

    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: Yes

    Features and Specs:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV5ML340721
    Stock: 27424342
    Certified Pre-Owned: No

    • 51,155 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • Moritz Kia Hurst (461 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Hurst, TX / 461 miles away from McAllen, TX

    CLEAN 2021 GMC TERRAIN SLE WITH PREFERRED PACKAGE!!! Terrain SLE, 4D Sport Utility, Ebony Twilight Metallic. Clean CARFAX.Ebony Twilight Metallic 20...

    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: 3GKALMEV5ML344329
    Stock: W666284A
    Certified Pre-Owned: No
    Listed since: 06-20-2025

    • 29,508 miles
    • 1 accident, 2 owners, personal use
    • 5 Seats, 26 City / 30 Hwy MPG
    • McKinney Buick GMC (490 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in McKinney, TX / 490 miles away from McAllen, TX

    Certified.Quicksilver Metallic 2021 GMC Terrain Denali 25/30 City/Highway MPG++Apple CarPlay and/or Android Auto++, **NAVIGATION / NAVI / GPS**, **LEA...

    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: 3GKALSEV1ML393483
    Stock: ML393483
    Certified Pre-Owned: No
    Listed since: 07-02-2025

  • New Listing
    Stock photo**
    • 68,673 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • Texan GMC Buick (317 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Humble, TX / 317 miles away from McAllen, TX

    Recent Arrival!Texan GMC Buick is pleased to offer this charming 2021 GMC Terrain SLE. FWD Summit WhiteCertified. 25/30 City/Highway MPGService Loaner...

    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: 3GKALMEV6ML354626
    Stock: T8029A
    Certified Pre-Owned: No
    Listed since: 07-19-2025

    • 69,473 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • Vandergriff Chevrolet (452 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Arlington, TX / 452 miles away from McAllen, TX

    VEHICLE DETAILED, RECENT OIL CHANGE, PASSED DEALER INSPECTION. CARFAX One-Owner. Clean CARFAX. 4D Sport Utility Satin Steel Metallic 2021 GMC Terrain ...

    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: 3GKALPEV0ML370354
    Stock: ML370354
    Certified Pre-Owned: No
    Listed since: 06-24-2025

    • 37,749 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • CarMax Corpus Christi (117 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Corpus Christi, TX / 117 miles away from McAllen, TX

    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: Yes

    Features and Specs:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV0ML324541
    Stock: 27352647
    Certified Pre-Owned: No

    • 37,338 miles
    • No accidents, 2 owners, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • Hicks Family Nissan (119 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Robstown, TX / 119 miles away from McAllen, TX

    Heated Leather Seats, iPod/MP3 Input, Lane Keeping Assist, Dual Zone A/C, Remote Engine Start, Onboard Communications System, Back-Up Camera, Turbo Ch...

    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: 3GKALPEVXML387047
    Stock: 83830A
    Certified Pre-Owned: No
    Listed since: 05-26-2025

    • 31,816 miles
    • No accidents, 2 owners, personal use only
    • 5 Seats, 25 City / 28 Hwy MPG
    • Carvana - Dallas (464 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Dallas, TX / 464 miles away from McAllen, TX

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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: 3GKALTEV3ML317494
    Stock: 2003855240
    Certified Pre-Owned: No
    Listed since: 07-01-2025

  • New Listing
    • 82,471 miles
    • No accidents, 2 owners, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • CarMax Garland (470 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Garland, TX / 470 miles away from McAllen, TX

    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: 3GKALMEV6ML325918
    Stock: 27299384
    Certified Pre-Owned: No

    • 76,082 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • CarMax Texas Stadium (Irving) (466 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Irving, TX / 466 miles away from McAllen, TX

    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: Yes

    Features and Specs:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV4ML385504
    Stock: 27424508
    Certified Pre-Owned: No

  • New Listing
    • 63,218 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • Enterprise Car Sales San Antonio (231 mi away)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in San Antonio, TX / 231 miles away from McAllen, TX

    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:

    28 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALPEV8ML393199
    Stock: 8GC5VW
    Certified Pre-Owned: No
    Listed since: 06-16-2025

    • 80,056 miles
    • 2 accidents, 2 owners, corporate fleet vehicle
    • 5 Seats, 26 City / 30 Hwy MPG
    • AutoNation USA Katy (293 mi away)
    • Five Star Dealer
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Houston, TX / 293 miles away from McAllen, TX

    Leather SeatsQuicksilver MetallicLane Keeping AssistKeyless StartAudio System; 8" Diagonal Gmc Infotainment SystemAxle; 3.47 Final Drive RatioEm...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    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: 3GKALPEV2ML333824
    Stock: ML333824
    Certified Pre-Owned: No
    Listed since: 07-12-2025

    • 47,856 miles
    • 2 accidents, 2 owners, corporate fleet vehicle
    • 5 Seats, 26 City / 30 Hwy MPG
    • Temple DriveTime (341 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Temple, TX / 341 miles away from McAllen, TX

    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: No

    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:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV4ML317848
    Stock: 1380095679
    Certified Pre-Owned: No
    Listed since: 07-03-2025

  • $17,977
    great price
    • 105,544 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 25 City / 28 Hwy MPG
    • James Wood Chevrolet Buick GMC Decatur (486 mi away)
    • Five Star Dealer
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Decatur, TX / 486 miles away from McAllen, TX

    CARFAX 1-Owner, Excellent Condition. EPA 28 MPG Hwy/25 MPG City! AT4 trim. Heated Leather Seats, Sunroof, NAV, Power Liftgate, All Wheel Drive, Turbo,...

    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: 3GKALYEV6NL200362
    Stock: 151158A1
    Certified Pre-Owned: No
    Listed since: 05-09-2025

  • $19,999
    great price
    • 74,375 miles
    • No accidents, 1 owner, rental vehicle
    • 5 Seats, 25 City / 30 Hwy MPG
    • Enterprise Car Sales Arlington (457 mi away)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Arlington, TX / 457 miles away from McAllen, TX

    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: 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: 3GKALPEV6NL273337
    Stock: 8DJ6XL
    Certified Pre-Owned: No
    Listed since: 07-02-2025

  • $15,000
    great price
    • 63,884 miles
    • 1 accident, 1 owner, corporate fleet vehicle
    • 5 Seats, 26 City / 30 Hwy MPG
    • Elder Mitsubishi (298 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Cedar Park, TX / 298 miles away from McAllen, TX

    Available at the Cedar Park Location.Priced below KBB Fair Purchase Price!Ebony Twilight Metallic 2020 GMC Terrain SLEThis vehicle comes equipped with...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    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:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV7LL320757
    Stock: LL320757
    Certified Pre-Owned: No
    Listed since: 05-01-2025

    • 39,915 miles
    • Insurance loss reported, 2 owners, personal use only
    • 5 Seats, 26 City / 30 Hwy MPG
    • AutoSavvy Duncanville (454 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Duncanville, TX / 454 miles away from McAllen, TX

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Issue reported

    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: 3GKALPEV6ML384758
    Stock: 90801
    Certified Pre-Owned: No

    • 96,108 miles
    • 1 accident, 1 owner, personal use only
    • 5 Seats, 22 City / 28 Hwy MPG
    • Texan GMC Buick (317 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Humble, TX / 317 miles away from McAllen, TX

    Texan GMC Buick is proud to offer this great 2020 GMC Terrain Denali. FWD Summit WhiteCertified. 22/28 City/Highway MPGService Loaners...Free WiFi.......

    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:

    24 Combined MPG (22 City/28 Highway)

    Listing Information:

    VIN: 3GKALSEX0LL323912
    Stock: G13608A
    Certified Pre-Owned: No
    Listed since: 06-09-2025

  • $23,987
    great price
    • 42,665 miles
    • No accidents, 1 owner, personal use only
    • 5 Seats, 25 City / 28 Hwy MPG
    • Reliable Chevrolet Texas (476 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Richardson, TX / 476 miles away from McAllen, TX

    Summit White 2022 GMC Terrain AT4 AWD 9-Speed Automatic 1.5L DOHC AWD.Recent Arrival! Odometer is 9087 miles below market average! 25/28 City/Highway ...

    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: 3GKALYEV6NL281699
    Stock: 25C686
    Certified Pre-Owned: No
    Listed since: 07-09-2025

    • 85,634 miles
    • No accidents, 3 owners, corporate fleet vehicle
    • 5 Seats, 26 City / 30 Hwy MPG
    • Cardenas Motors Brownsville (53 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Brownsville, TX / 53 miles away from McAllen, TX

    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: 3GKALPEV3ML312853
    Stock: P312853
    Certified Pre-Owned: No

Showing 1 - 21 out of 1,726 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 McAllen, TX Values

Estimated values
2021 GMC Terrain SLT 4dr SUV (1.5L 4cyl Turbo 9A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$17,090$18,742$20,400
Clean$16,726$18,334$19,945
Average$16,120$17,653$19,187
Rough$15,332$16,768$18,202

The average list price of a used 2021 GMC Terrain in McAllen, Texas is $20,457. The average mileage on a used GMC Terrain 2021 for sale in McAllen, Texas is 63,883. Based on the average mileage of 63,883 for used 2021 GMC Terrain for sale in McAllen, TX 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 McAllen, Texas to be $16,120.

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