EcoTec3 6.2L V8 4WD GMC Sierra 1500
Clean CARFAX.
The 2020 GMC Sierra 1500 AT4 is the truck that shows up to the trailhead wearing a flannel shirt and expensive hiking boots rugged enough to play in the dirt, but stylish enough to valet at a steakhouse in Salt Lake City.
Under the hood, you could get it with a **5.3 liter V8** (355 horsepower and 383 pound feet of torque) or step up to the **6.2 liter V8** that pumps out **420 horsepower and 460 pound feet of torque**. Both engines come with a 10 speed automatic and enough low-end grunt to tow a boat to Flaming Gorge or a camper up Parleys Canyon without breathing hard. There was even a diesel option if you wanted torque with a side of fuel economy.
The AT4 trim is all about off-road attitude straight from the factory. You get a 2 inch factory lift, Rancho monotube shocks, skid plates, hill descent control, and a standard four wheel drive system. That setup means you can head into the Uintas, bounce around in Moab, or tackle snowy mornings in Park City without bolting on a single aftermarket part.
Fuel economy is what you would expect from a full-size truck with brawny engines. The 6.2 liter manages around 15 mpg city and 20 highway, which is basically the price of admission for hauling power and trail capability. The diesel option, on the other hand, gets you closer to mid 20s mpg, which is pretty good for something this size.
Inside, the AT4 tries to hide its muddy boots with upscale touches. Leather seats with Kalahari accents, heated and ventilated fronts, heated rear seats, and a roomy cab make it as comfortable as a luxury SUV. You also get an 8 inch touchscreen with Apple CarPlay, Android Auto, and optional Bose audio. The MultiPro tailgate is the party trick, folding and flipping into six different positions that make loading, stepping up, or turning it into a camp bench stupidly easy.
For Utah life, this truck is basically built for it. High clearance for rocky backroads, four wheel drive for ski trips, V8 power for towing toys to Lake Powell, and enough luxury to make I-15 traffic bearable. The 2020 Sierra 1500 AT4 is the rare rig that can roll into a muddy campsite on Saturday and then pull up to a downtown dinner on Sunday without needing a wash in between.
Come to www.utahmitsubishi.com To See Our Specials!! Call us at (801) 572-3100 For help with any of our departments! We are the largest Utah Mitsubishi Dealer. "While great effort is made to ensure the accuracy of the information on our website, errors do occur. Please verify information with a customer service representative at (801)572-3100 or by visiting our dealership."
2020 GMC Sierra 1500 AT4
- Used
$38,980Details
Southtowne Mitsubishi
Call 801-572-3100
We’re here to help
The highlights
- 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
- Heated front seats
- Ventilated front seats
- Perimeter/approach lights
- Remote keyless entry
We can come to you

Video walkaround
Experience this vehicle via video call and ask us any questions you have.
Schedule a video call
Test drive at home
We’ll bring this vehicle to you for a no-obligation test drive.
Request a test drive
Home delivery
We’ll deliver the vehicle you want to your home and help you complete the paperwork.
Ask about delivery
The full 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
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Radio data system
- Satellite radio trial duration with new vehicle purchase (months): 3
- 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
- Heated rear 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 fuel type: gasoline
- Fuel economy highway: 21mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- 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
Notes from the dealer
Peace of mind
Vehicle history report
- Title information
- Odometer readings
- Accident data (if applicable)
- Service history
- Vehicle usage
- Recall information (if applicable)
- Warranty status
A name you can trust
Southtowne Automall is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
More about usKBB.com Consumer Reviews
- 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!


