Discover the perfect blend of style, performance, and cutting-edge technology in this 2021 GMC Terrain SLT. With its sleek gray exterior and well-appointed interior, this SUV is poised to elevate your driving experience.
Tailored to your needs, this Terrain SLT offers an impressive array of features, including:
- GMC PRO SAFETY PLUS: Enhancing your safety with advanced driver-assistance technologies like Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, and Rear Park Assist.
- Graphite Gray Metallic exterior color
- License Plate Front Mounting Package
Elevate your commute with the Terrain SLT's impressive capabilities:
- 1.5L DOHC engine with 9-speed automatic transmission and AWD for confident, responsive performance
- 25 city / 28 highway MPG, delivering efficiency without sacrificing power
Indulge in the Terrain SLT's exceptional comfort and convenience features:
- SiriusXM Radio for endless entertainment
- Lane Departure Warning System to help keep you on track
- Rear Parking Camera for effortless maneuvering
- Adaptive Cruise Control for a more relaxed driving experience
- Apple CarPlay and Android Auto integration for seamless connectivity
- Heated steering wheel and heated front seats for cozy rides
The 2021 GMC Terrain SLT is more than just a vehicle it's a gateway to a refined, tech-savvy driving experience. Discover the difference a Terrain SLT can make in your daily commute and weekend adventures.
We invite you to visit our showroom and experience the exceptional quality and features of this remarkable SUV. Our knowledgeable team is here to answer any questions you may have and help you find the perfect Terrain SLT to suit your lifestyle. Don't miss the opportunity to make this impressive Terrain SLT your own.
Used 2021 GMCTerrain SLT SUV
- Exterior Color
- Graphite Gray
- Interior Color
- Jet Black
- Odometer
- 48,043 miles
- Body/Seating
- SUV/5 seats
- Fuel Economy
- 25/28 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- All-wheel Drive
- Engine
- I-4 cyl
- VIN
- 3GKALVEV7ML391934
- Stock Number
- ML391934
GMC
Terrain
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Auto-dimming rearview mirror
- High intensity discharge headlights
- Split folding rear seat
Included Packages & Accessories
- 3.47 Axle Ratio
- Engine: 1.5L Turbo DOHC 4-Cylinder SIDI VVT
- Tires: P225/60R18 AS BW
- Wheels: 18" x 7" Machined Aluminum w/Gray Accents
- Preferred Equipment Group 4SA
- License Plate Front Mounting Package
- Transmission: 9-Speed Automatic 9T45
- Adaptive Cruise Control
- Radio: GMC Infotainment Audio System w/8" Display
- 6-Speaker Audio System Feature
- 2 USB Data Ports
- 2 USB Data Ports w/SD Card Reader
- SiriusXM Radio
- Bluetooth For Phone
- Lane Change Alert w/Side Blind Zone Alert
- Rear Park Assist
- Safety Alert Seat
- GMC Pro Safety Plus
- Rear Cross-Traffic Alert
- Front Bucket Seats
- 8-Way Power Driver Seat Adjuster
- Power Driver Lumbar Control
- Driver & Front Passenger Heated Seats
Included Packages & Options
Included Options
- License Plate Front Mounting Package$40
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control: Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar and GMC connected services capable
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Trunk/hatch auto-latch
- Alloy wheels
- Four wheel independent suspension
- Front anti-roll bar
- Power steering
- Rear anti-roll bar
- Speed-sensing steering
- 1st row LCD monitors: 2
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: bench
- Rear seats Folding position: fold forward seatback
- Seat Upholstery: leather
- Split folding rear seat
- Compressor: intercooled turbo
- Cylinder configuration: I-4
- Drive type: all-wheel
- Engine liters: 1.5L
- Engine location: front
- Fuel economy city: 25mpg
- Fuel economy combined: 26mpg
- Fuel economy highway: 28mpg
- Fuel tank capacity: 15.6gal.
- Horsepower: 170hp @ 5,600RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 16
- Recommended fuel: Regular Unleaded
- Standard fuel economy fuel type: gasoline
- Torque: 203 lb.-ft. @ 2,000RPM
- Transmission: 9 speed automatic
- Variable valve control
- Ground clearance (min): 201mm (7.9")
- Auto-dimming door mirrors
- Bumpers: body-color
- Heated door mirrors
- Power door mirrors
- Power liftgate
- Rear cargo: power liftgate
- Spoiler
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 10.00 to 1
- Curb weight: 1,660kg (3,659lbs)
- Engine bore x stroke: 73.9mm x 86.4mm (2.91" x 3.40")
- Engine displacement: 1.5 L
- Engine horsepower: 170hp @ 5,600RPM
- Engine torque: 203 lb.-ft. @ 2,000RPM
- Exterior body width: 1,839mm (72.4")
- Exterior height: 1,661mm (65.4")
- Exterior length: 4,630mm (182.3")
- Front headroom: 1,016mm (40.0")
- Front hiproom: 1,382mm (54.4")
- Front legroom: 1,039mm (40.9")
- Front shoulder room: 1,453mm (57.2")
- GVWR: 2,100kg (4,630lbs)
- Interior maximum rear cargo volume: 1,792 L (63 cu.ft.)
- Interior rear cargo volume: 838 L (30 cu.ft.)
- Rear headroom: 978mm (38.5")
- Rear hiproom: 1,316mm (51.8")
- Rear legroom: 1,008mm (39.7")
- Rear shoulder room: 1,412mm (55.6")
- Towing capacity: 680kg (1,500lbs)
- Turning radius: 5.9m (19.2')
- Wheelbase: 2,725mm (107.3")
- Appearance: analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- High intensity discharge headlights
- Lane departure: active
- Low tire pressure warning
- Outside temperature display
- Parking sensors: rear
- Rear window defroster
- Rear window wiper
- Tachometer
- Trip computer
- Variably intermittent wipers
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: warning
- Security system
- Tracker system
- Traction control
Standard Features
- 8-Way Power Driver Seat Adjuster
- Driver & Front Passenger Heated Seats
- Power Driver Lumbar Control
- 6-Speaker Audio System Feature
- 2 USB Data Ports
- 2 USB Data Ports w/SD Card Reader
- SiriusXM Radio
- Bluetooth For Phone
Dealer Notes
KBB.com Consumer Reviews

Overall3.9Out of 5
- 5.0
Awesome car
By OHGMCDenali | on 2/13/2026 7:18:25 PM
This purchase has turned out to be the best thing I did in car purchasing in a while. I enjoy the ride, the comfort and the equipment. Its not a rocket ship but who needs an SUV to go from 0 - 60 in 2 secs? If you need that stay in a sports car. You'll love this well made SUV… - 4.0
Drives and rides great!
By NanaKaren | on 1/7/2026 4:26:41 AM
It drives and rides great! It has all the bells and whistles you would expect on a denali. The back seats are just as comfortable as the front seats are. The only draw back is the wind and road noise.… - 5.0
2019 GMC Terrain SLT AWD
By Victor | on 7/28/2025 10:09:34 PM
Start to finish the BEST SUV for the $$$. GMC quality and luxury combined at it's best! One happy customer with NO regrets…
All reviews on KBB.com
Based on 53 consumer ratings for 2018–2024 models. | Privacy
- MSRP
- $32,800
- Discount
- -$12,000
- Price
- $20,800
- We're here to help: 717-697-9448
- We're here to help: 717-697-9448




