Certified.
AT4 High Clearance Step (LPO), AT4 Preferred Package, AT4 Premium Package, Auxiliary External Transmission Oil Cooler, Driver Alert Package I, Engine Block Heater, Lane Change Alert w/Side Blind Zone Alert, Panic alarm, Perimeter Lighting, Power Sliding Rear Window w/Rear Defogger, Power Sunroof, Premium Bose 7-Speaker Sound System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, SiriusXM w/360L, Ultrasonic Front & Rear Park Assist, Universal Home Remote, Wireless Charging. 22/26 City/Highway MPG
Onyx Black 2021 GMC Sierra 1500 AT4 3.0L I6 4WD 10-Speed Automatic
**90 Days to First Payment with Approved Credit.
GMC Certified Pre-Owned Details:
* Transferable Warranty
* Warranty Deductible: $0
* Limited Warranty: 12 Month/12,000 Mile (whichever comes first) from certified purchase date
* 24 months/24,000 miles (whichever comes first) CPO Scheduled Maintenance Plan and 3 days/150 miles (whichever comes first) Vehicle Exchange Program. SiriusXM 3-month trial subscription
* Powertrain Limited Warranty: 72 Month/100,000 Mile (whichever comes first) from original in-service date
* 172 Point Inspection
* Roadside Assistance
* Vehicle History
Alpine offers an unconventional experience with up front pricing, a non commissioned staff, no games, and a pain free auto shopping experience. Our focus is your satisfaction and making sure you walk out the door happy, with our without a vehicle. Only at Motor City, Only at Alpine! (719)636-3881 1313 Motor City Drive, Colorado Springs, CO 80905.
Certified Pre Owned 2021 GMCSierra 1500 AT4 Truck
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 71,940 miles
- Body/Seating
- Truck/5 seats
- Fuel Economy
- 16/21 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- 3.0L I6
- VIN
- 3GTU9EET1MG183420
- Stock Number
- 183420
GMC
Sierra 1500
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
Included Packages & Options
- AT4 Premium Package$3,200
- AT4 Preferred Package
- Driver Alert Package I
- Technology Package$2,075
- HD Surround Vision w/2 Trailer View Camera Provisions
- Rear Camera Mirror
- Bed View Camera
- Multicolor 15" Diagonal Head-Up Display
- 8" Driver Information Center
- AT4 Preferred Package$1,420
- Universal Home Remote
- Power Sliding Rear Window w/Rear Defogger
- Radio: Premium GMC Infotainment Sys w/Navigation
- Premium Bose 7-Speaker Sound System
- Wireless Charging
- Driver Alert Package II$1,095
- Forward Collision Alert
- Lane Keep Assist w/Lane Departure Warning
- Automatic Emergency Braking
- Front Pedestrian Braking
- IntelliBeam Automatic High Beam On/Off
- Adaptive Cruise Control
- Following Distance Indicator
- Safety Alert Seat
- Driver Alert Package I$890
- Ultrasonic Front & Rear Park Assist
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
Included Options
- MultiPro Audio System by Kicker$815
- Engine Block Heater$100
- Wheels: 20" x 9" Machined Aluminum$800
- AT4 Preferred Package$1,420
- Driver Alert Package I$890
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- 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
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- 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: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Cylinder deactivation
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 18mpg
- Fuel economy highway: 21mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 276mm (10.9")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch receiver
- Trailer sway control
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- Exterior length: 5,885mm (231.7")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,744mm (147.4")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Dealer Notes
KBB.com Consumer Reviews

Overall4Out of 5
- 3.0
Nice truck
By froggy | on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.… - 5.0
Great Truck
By Mel | on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.… - 5.0
Well done GM
By Tony | on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!…
Based on 76 consumer ratings for 2019–2023 models. | Privacy
Detailed Pricing
- Price
- $51,110
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New Arrivals
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