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  • $15,244
    great price
    $3,962 below market
    • 108,754 miles
    • 1 accident, 2 owners, personal use
    • 4cyl automatic
    • Page Honda of Bloomfield (25 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Bloomfield Hills, MI / 25 miles away from Detroit, MI

    Priced below KBB Fair Purchase Price!Family owned dealer, serving the Detroit market for over 50 Years.We take pride in treating all of our customers ...

    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: 3GKALTEV2ML337123
    Stock: 0581-25A
    Certified Pre-Owned: No
    Listed since: 11-13-2024

  • $17,776
    great price
    $3,422 below market
    • 52,273 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Ed Martin Buick GMC of Anderson (199 mi away)
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Anderson, IN / 199 miles away from Detroit, MI

    New Price!**PRICED BELOW KBB FAIR PURCHASE PRICE**, **ONE OWNER**, **SPOTLESS CARFAX**, **NEW VEHICLE TRADE IN**, **LANE CHANGE ALERT**, **SIDE BLIND ...

    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: 3GKALPEV2ML363390
    Stock: B17951A
    Certified Pre-Owned: No
    Listed since: 03-01-2025

  • Price Drop
    $21,321
    great price
    $2,860 below market
    • 51,346 miles
    • No accidents, 2 owners, personal use
    • 4cyl automatic
    • Randy Wise Buick GMC (46 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Fenton, MI / 46 miles away from Detroit, MI

    2021 GMC Terrain SLE AWD.Certification Program Details: Our Car Bravo Certified Pre-Owned vehicles include a 6 Month or 6,000 Mile bumper-to-bumper ...

    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: 3GKALTEV8ML345257
    Stock: B241551A
    Certified Pre-Owned: Yes
    Listed since: 03-29-2025

  • New Listing
    $23,995
    great price
    $2,738 below market
    • 34,327 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Serra Chevrolet of Saginaw (92 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Saginaw, MI / 92 miles away from Detroit, MI

    Terrain SLT, 4D Sport Utility, 1.5L DOHC, 9-Speed Automatic, AWD, Ebony Twilight Metallic, Jet Black Leather, Adaptive Cruise Control, 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: 3GKALVEVXML396724
    Stock: ML396724
    Certified Pre-Owned: No
    Listed since: 03-24-2025

  • $22,321
    great price
    $2,687 below market
    • 37,292 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Serra Buick GMC Rochester Hills (27 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Rochester Hills, MI / 27 miles away from Detroit, MI

    Recent Arrival! Priced below KBB Fair Purchase Price! 2021 GMC Certified. Ebony Twilight Metallic Terrain SLE AWD CARFAX One-Owner. Clean CARFAX. This...

    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: 3GKALTEV4ML395220
    Stock: ML395220
    Certified Pre-Owned: Yes
    Listed since: 04-15-2025

  • $21,900
    good price
    $1,434 below market
    • 30,004 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Nick Abraham Buick GMC (84 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Elyria, OH / 84 miles away from Detroit, MI

    Certified Vehicle Special! AWD FOR ALL SEASONS AND CONDITIONS! BACK-UP CAMERA LET'S YOU SEE WHAT'S BEHIND YOU WHEN IN REVERSE! 4-Wheel Disc Brakes|9-S...

    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: 3GKALTEV4ML375596
    Stock: B8352210
    Certified Pre-Owned: Yes
    Listed since: 10-28-2024

  • $21,995
    good price
    $848 below market
    • 29,654 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Vyletel Buick GMC (23 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Blind Spot Monitorin...
    Close

    Located in Sterling Heights, MI / 23 miles away from Detroit, MI

    *** ADAPTIVE CRUISE CONTROL AND A SPOTLESS ACCIDENT-FREE CARFAX REPORT! CHECKOUT THIS EXTREMELY CLEAN 2021 GMC TERRAIN THAT IS GM CERTIFIED WITH ONLY ...

    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: 3GKALMEV0ML387380
    Stock: U3776
    Certified Pre-Owned: Yes
    Listed since: 04-04-2025

  • $20,489
    good price
    $1,559 below market
    • 58,057 miles
    • No accidents, 2 owners, personal use
    • 4cyl automatic
    • Driveway (20 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Troy, MI / 20 miles away from Detroit, MI

    Apple CarPlay,Back-Up Camera,Bluetooth,Keyless Start,Lane Keeping Assist,Remote Start,Turbo/Supercharged,WiFi Hotspot,Power Door Locks,Floor Mats,Gaso...

    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: 3GKALTEV5ML303368
    Stock: ML303368PJ
    Certified Pre-Owned: No

  • $20,995
    fair price
    $873 above market
    • 49,572 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Zeigler Ford (122 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Lowell, MI / 122 miles away from Detroit, MI

    **INCREDIBLY CLEAN LOCAL TRADE**HEATED SEATS**REMOTE START**CRUISE CONTROL**BLUETOOTH**POWER LOCKS AND WINDOWS**TOUCHSCREEN WITH REAR VIEW CAMERA**HEA...

    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: 3GKALMEV8ML368544
    Stock: 24493B
    Certified Pre-Owned: No
    Listed since: 03-10-2025

  • Price Drop
    $25,998
    fair price
    $94 below market
    • 19,997 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Betten Chevrolet Cadillac GMC Buick (170 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Muskegon, MI / 170 miles away from Detroit, MI

    Priced below KBB Fair Purchase Price! Ebony Twilight Metallic 2021 GMC Terrain SLT AWD 9-Speed Automatic 1.5L DOHC AWD.Odometer is 27928 miles below...

    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: 3GKALVEV6ML363008
    Stock: 55324A
    Certified Pre-Owned: No
    Listed since: 04-11-2025

    • 67,292 miles
    • Frame damage reported, 3 owners, corporate fleet vehicle
    • 4cyl automatic
    • Auto Palace (161 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Columbus, OH / 161 miles away from Detroit, MI

    This vehicle is either still currenty in transport or has just arrived and going through an inspection and detail. If you would like more informat...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Issue reported

    Salvage Vehicle: No

    Frame Damage: Yes

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    26 Combined MPG (25 City/28 Highway)

    Listing Information:

    VIN: 3GKALVEV7ML324668
    Stock: RE31
    Certified Pre-Owned: No
    Listed since: 04-02-2025

  • $22,995
    fair price
    $655 below market
    • 34,539 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 4cyl automatic
    • Frank Beck Chevrolet (81 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Hillsdale, MI / 81 miles away from Detroit, MI

    2021 GMC Terrain SLT.

    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: 3GKALPEV6ML375204
    Stock: P24508
    Certified Pre-Owned: No
    Listed since: 09-04-2024

  • Price Drop
    $18,402
    good price
    $1,308 below market
    • 82,378 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Driveway (197 mi away)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Wexford, PA / 197 miles away from Detroit, MI

    CarFax No Accidents Reported,CarFax 1-Owner,Apple CarPlay,Back-Up Camera,Bluetooth,Keyless Start,Lane Keeping Assist,Remote Start,Turbo/Supercharged,W...

    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: 3GKALTEV4ML315480
    Stock: A315480A
    Certified Pre-Owned: No

  • $24,555
    good price
    $944 below market
    • 34,730 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Team Toyota (185 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Steubenville, OH / 185 miles away from Detroit, MI

    Thank you for choosing TEAM Automotive!Were excited to present this stylish and versatile 2021 GMC Terrain SLT AWDa premium compact SUV that delivers...

    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: 3GKALVEV0ML385652
    Stock: MT476A2
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • $19,995
    fair price
    $367 below market
    • 84,574 miles
    • No accidents, 2 owners, rental vehicle
    • 4cyl automatic
    • Toyota Direct (154 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Columbus, OH / 154 miles away from Detroit, MI

    Ebony Twilight Metallic 2021 GMC Terrain SLT AWD 9-Speed Automatic 1.5L DOHC ***Clean Carfax***, Exterior Parking Camera Rear, Power Liftgate.Recent...

    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: 3GKALVEV9ML343335
    Stock: ML343335
    Certified Pre-Owned: No
    Listed since: 04-17-2025

  • Price Drop
    $24,894
    fair price
    $611 above market
    • 22,670 miles
    • No accidents, 1 owner, personal use
    • 4cyl automatic
    • Spitzer Chevrolet Amherst (77 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Amherst, OH / 77 miles away from Detroit, MI

    CARFAX One-Owner. Clean CARFAX. Certified. Summit White 2021 GMC Terrain SLT AWD 9-Speed Automatic 1.5L DOHCRecent Arrival! Odometer is 28932 miles ...

    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: 3GKALVEV7ML379699
    Stock: 35191AM
    Certified Pre-Owned: No
    Listed since: 04-16-2025

  • Price Drop
    Stock photo**
    $20,982
    good price
    $1,691 below market
    • 67,612 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Platinum Motors (160 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Sunroof/Moonroof
    Close

    Located in Heath, OH / 160 miles away from Detroit, MI

    CARFAX One-Owner. AWD. 2021 Terrain GMC SLE 1.5L DOHC 9-Speed Automatic AWD Ebony Twilight Metallic 25/28 City/Highway MPG Platinum Motors LLC offers ...

    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: 3GKALTEV4ML323188
    Stock: 15801
    Certified Pre-Owned: No
    Listed since: 03-27-2025

  • New Listing
    $19,999
    fair price
    $151 below market
    • 68,313 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Hank Graff Chevrolet (56 mi away)
    • Five Star Dealer
    • Back-up camera
    • Bluetooth
    • Sunroof/Moonroof
    • Keyless Entry/Start
    • Upgraded Headlights
    Close

    Located in Davison, MI / 56 miles away from Detroit, MI

    Recent Arrival! backup camera, Bluetooth®, Terrain SLE, 4D Sport Utility, 1.5L DOHC, 9-Speed Automatic, FWD, Ebony Twilight Metallic, Jet Black Cloth,...

    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: 3GKALMEV8ML397722
    Stock: 6-38289ASB
    Certified Pre-Owned: No
    Listed since: 04-21-2025

  • New Listing
    $18,995
    fair price
    $472 below market
    • 90,357 miles
    • 1 accident, 1 owner, personal use only
    • 4cyl automatic
    • Mike Young Buick GMC (79 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Keyless Entry/Start
    Close

    Located in Frankenmuth, MI / 79 miles away from Detroit, MI

    Terrain SLE, 4D Sport Utility, 1.5L DOHC, 9-Speed Automatic, AWD, Blue Emerald Metallic, Jet Black Cloth, 110-Volt Power Outlet, 2 USB Data Ports, 2 U...

    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: 3GKALTEV2ML313517
    Stock: 27173A
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • Price Drop
    $17,082
    fair price
    $288 below market
    • 100,402 miles
    • 1 accident, 1 owner, personal use only
    • 4cyl automatic
    • Byers Chevrolet (168 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Power Driver Seat
    Close

    Located in Grove City, OH / 168 miles away from Detroit, MI

    2021 Satin Steel Metallic GMC Terrain SLE FWD 1.5L DOHC This GMC Terrain has many features and is well equipped including, Collision Avoidance System,...

    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:

    27 Combined MPG (26 City/30 Highway)

    Listing Information:

    VIN: 3GKALMEV4ML306266
    Stock: C240546A
    Certified Pre-Owned: No
    Listed since: 04-03-2025

    • 12,420 miles
    • No accidents, 1 owner, personal use only
    • 4cyl automatic
    • Nick Abraham Buick GMC (84 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Upgraded Headlights
    • Tire Pressure Warnin...
    Close

    Located in Elyria, OH / 84 miles away from Detroit, MI

    Certified Vehicle Special! BACK-UP CAMERA LET'S YOU SEE WHAT'S BEHIND YOU WHEN IN REVERSE! 4-Wheel Disc Brakes|9-Speed A/T|ABS|Air Conditioning|AM/FM ...

    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: 3GKALMEV1ML311280
    Stock: B8349010
    Certified Pre-Owned: Yes
    Listed since: 03-19-2025

Showing 1 - 21 out of 2,654 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 Detroit, MI Values

Estimated values
2021 GMC Terrain SLE 4dr SUV AWD (1.5L 4cyl Turbo 9A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$16,842$18,374$19,909
Clean$16,484$17,973$19,466
Average$15,886$17,306$18,726
Rough$15,109$16,438$17,764

The average list price of a used 2021 GMC Terrain in Detroit, Michigan is $21,032. The average mileage on a used GMC Terrain 2021 for sale in Detroit, Michigan is 54,122. Based on the average mileage of 54,122 for used 2021 GMC Terrain for sale in Detroit, MI 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 Detroit, Michigan to be $15,886.

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Edmunds Review

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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.