Used 2020 GMCSierra 2500HD Truck Crew Cab 40370A
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Odometer
- 31,484 miles
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT49ME77LF342745
- Stock Number
- 40370A
Highlighted Features
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Exterior parking camera rear
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Heated front seats
- Perimeter/approach lights
- Remote keyless entry
- Heated steering wheel
- Steering wheel mounted audio controls
Included Packages & Accessories
- Wheels: 18" 6-Spoke Machined Aluminum
- Front License Plate Kit
- Transmission: Heavy-Duty 6-Speed Automatic
- 730 Cold-Cranking Amps/70 Amp-hr Auxiliary Battery
- GVWR: 10,650 lbs
- Pickup Box
- 3.73 Rear Axle Ratio
- 5th Wheel & Gooseneck Trailer Wiring Provisions
- 2nd Row Dual USB Charge-Only Ports
- LED Smoked Amber Roof Marker Lamps
- SLE Convenience Package
- A/C w/Dual-Zone Automatic Climate Control
- 10-Way Power Driver Seat Adjuster w/Lumbar
- Heated Driver & Front Outboard Passenger Seats
- Heated Steering Wheel
- Manual Tilt-Wheel/Telescoping Steering Column
- Electric Rear-Window Defogger
- Keyless Open & Start
- Electrical Lock Control Steering Column
- Remote Vehicle Starter System
- Unauthorized Entry Theft-Deterrent System
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- EZ Lift Power Lock & Release Tailgate
- LED Cargo Area Lighting
- 12-Volt Rear Auxiliary Power Outlet
- LED Fog Lamps
- Rear Wheelhouse Liners
- Skid Plates
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- HD Rear Vision Camera
- Power-Adjustable Black Outside Mirrors
- Auto Dimming Inside Rearview Mirror
- Perimeter Lighting
- In-Vehicle Trailering System App
- SiriusXM w/360L
- X31 Off-Road Package
- Hill Descent Control
- Off-Road Suspension
- Tires: LT265/70R17E AT BW
- Spare LT265/70R17E AT BW Tire
- Preferred Equipment Group 3SA
- Radio: AM/FM w/GMC Infotainment System
- 6-Speaker Audio System Feature
- Compass Located In Instrument Cluster
- Power Door Locks
- Remote Keyless Entry
- OnStar & GMC Connected Services Capable
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access Capable
- Front 40/20/40 Split-Bench Seats
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Steering Wheel Audio Controls
- Manual Tilt Wheel Steering Column
- Power Windows w/Driver Express Up/Down
- Power Front Windows w/Passenger Express Down
- Power Rear Windows w/Express Down
- Deep-Tinted Glass
- Chrome Surround Grille w/High Gloss Black Mesh
- Integrated Trailer Brake Controller
- Engine: 6.6L V8 w/Direct Injection & VVT
- Heavy-Duty 80 Amp Battery
- GVWR: 10,450 lbs
- 2-Speed Electronic Shift Transfer Case
- Snow Plow Prep/Camper Package
- 220 Amps Alternator
- 2 USB Ports
- Power Sliding Rear Window w/Defogger
- Universal Home Remote
- HD Radio
- Hitch Guidance w/Hitch View
- Cloth Rear Seat w/Storage Package
- Preferred Package
- Radio: AM/FM w/Premium GMC Infotainment System
- Tires: LT275/70R18E AT BW
- Spare LT275/70R18 AT BW Tire
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
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- 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
- Single rear wheels
- Tires: all-terrain
- Wheel size: 18"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 6
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest: w/storage
- Heated front seats
- Power 2-way driver lumbar support
- Power driver seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: cloth
- Split folding rear seat
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel economy fuel type: gasoline
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bumpers: chrome
- 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
- Turn signal indicator mirrors
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,352mm (250.1")
- 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: 1,013mm (39.9")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Towing capacity: 6,577kg (14,500lbs)
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,037mm (158.9")
- Appearance: analog
- Compass
- Delay-off headlights
- Exterior parking camera rear: Hitch View yes
- 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
Standard Features
- A/C w/Dual-Zone Automatic Climate Control
- 10-Way Power Driver Seat Adjuster w/Lumbar
- Heated Driver & Front Outboard Passenger Seats
- Heated Steering Wheel
- Manual Tilt-Wheel/Telescoping Steering Column
- Electric Rear-Window Defogger
- Keyless Open & Start
- Electrical Lock Control Steering Column
- Remote Vehicle Starter System
- Unauthorized Entry Theft-Deterrent System
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- 2nd Row Dual USB Charge-Only Ports
- EZ Lift Power Lock & Release Tailgate
- LED Cargo Area Lighting
- 12-Volt Rear Auxiliary Power Outlet
- LED Fog Lamps
- LED Smoked Amber Roof Marker Lamps
- Rear Wheelhouse Liners
- Universal Home Remote
- Power Sliding Rear Window w/Defogger
- 120-Volt Instrument Panel Power Outlet
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L
- HD Rear Vision Camera
- 2 USB Ports
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering System App
- HD Radio
- Cloth Rear Seat w/Storage Package
- Auto Dimming Inside Rearview Mirror
- Perimeter Lighting
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- Tires: LT265/70R17E AT BW
- 220 Amps Alternator
- Skid Plates
- Spare LT275/70R18 AT BW Tire
- Spare LT265/70R17E AT BW Tire
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access Capable
- 120-Volt Bed Mounted Power Outlet
- 6-Speaker Audio System Feature
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Heavy-Duty 80 Amp Battery
- GVWR: 10,450 lbs
- Radio: AM/FM w/GMC Infotainment System
- Compass Located In Instrument Cluster
- Power Door Locks
- Remote Keyless Entry
- OnStar & GMC Connected Services Capable
- Front 40/20/40 Split-Bench Seats
- Steering Wheel Audio Controls
- Manual Tilt Wheel Steering Column
- Power Windows w/Driver Express Up/Down
- Power Front Windows w/Passenger Express Down
- Power Rear Windows w/Express Down
- Deep-Tinted Glass
- Chrome Surround Grille w/High Gloss Black Mesh
- Integrated Trailer Brake Controller
- Engine: 6.6L V8 w/Direct Injection & VVT
- 2-Speed Electronic Shift Transfer Case
KBB.com Consumer Reviews
- 2.0
Transmission trash
By Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 3.0
Infotainment system unreliable!
By Brian C on Friday, June 27, 2025
The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another. - 5.0
Fantastic truck
By Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!
