2023 GMC Sierra 2500HD

• Dual-zone front climate control
• Automatic climate control
• Rear under seat climate control ducts
• Rear console climate control ducts
• Climate control
• Aluminum and sim carbon fibre console insert
• Ventilated driver and front passenger seats
• Vinyl door trim insert
• Aluminum and sim carbon fibre door panel insert
• Rubber front and rear floor mats with carpet inserts
• Full carpet floor covering
• Full floor coverage
• Leather front seat upholstery
• Plastic front seatback upholstery
• Bucket front seats
• Driver seat with 8-way directional controls
• Front seat centre armrest
• Front passenger seat with 8-way directional controls
• Height adjustable front seat head restraints
• Manual front seat head restraint control
• Urethane gear shifter material
• Deep tinted windows
• Cloth headliner material
• Full headliner coverage
• Heated driver and front passenger seats
• Heated rear seats
• Aluminum instrument panel insert
• Chrome interior accents
• Driver seat with 2-way power lumbar
• Front passenger seat with 2-way power lumbar
• 2 memory settings
• Cabback insulator
• Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
• Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
• Split-bench rear seat
• Fold-up rear seat cushion
• 60-40 folding rear seats
• Rear seat centre armrest
• Fixed rear seats
• Height adjustable rear seat head restraints
• Manual rear seat head restraint control
• 2 rear seat head restraints
• 5-Passenger Seating
• Heated steering wheel
• Manual tilting steering wheel
• Manual telescopic steering wheel
• Leatherette steering wheel
• Vinyl rear seat upholstery
• Carpetrear seatback upholstery

• Steering wheel mounted audio controls
• Full floor console
• Covered floor console storage
• Mini overhead console
• Cruise control with steering wheel mounted controls
• Smart key with hands-free access and push button start
• Push-button
• Auto-locking doors
• All-in-one remote fob and ignition key
• Power door locks with 2 stage unlocking
• Keyfob keyless entry
• Tailgate/power door lock
• Heated driver and passenger side door mirrors
• Auto-dimming driver side mirror
• Auto-dimming passenger side mirror
• Power door mirrors
• Manual folding door mirrors
• Capless fuel filler
• Rear seat cheque warning
• Exterior temperature display
• Tachometer
• Oil pressure gauge
• Engine/electric motor temperature gauge
• Voltmeter
• Inclinometer
• Transmission fluid temperature gauge
• Engine hour metre
• Diesel exhaust fluid (def) gauge
• Digital clock
• Compass
• Redundant digital speedometer
• Engine temperature warning
• Battery charge warning
• Low level warning for oil, coolant, fuel, washer fluid, brake fluid and diesel exhaust fluid (DEF)
• Key in vehicle warning
• Door ajar warning
• Service interval indicator
• Turn signal on warning
• Oil pressure warning
• Transmission fluid temp warning
• Brake pad wear indicator
• Driver information centre
• Headlights on reminder
• Trip odometer
• Auto-dimming rear view mirror
• Day/Night rearview mirror
• Keyfob remote start
• Keyfob window control
• Keyfob trunk control
• Front reading lights
• Rear reading lights
• Variable instrument panel light
• Memory settings include: door mirrors
• Tire pressure fill assist
• Trip computer
• Retained accessory power
• Conventional left rear passenger door
• Conventional right rear passenger door
• Driver foot rest
• Integrated side steps
• Easy lift tailgate
• Easy lower tailgate
• Integrated tailgate step
• 1 exterior 120V AC power outlet
• 2 12V power outlets
• 1 interior AC power outlet
• Tailgate
• Front facing rear seat
• Fixed rear windshield
• Front beverage holders
• Locking glove box
• 8 beverage holders
• 2 seatback storage pockets
• Driver and passenger door bins
• Rear door bins
• Rear under seat tray
• Rear beverage holders
• Driver visor mirror
• Illuminated driver visor mirror
• Passenger visor mirror
• Illuminated passenger visor mirror
• Power first-row windows
• Power second-row windows
• Front and rear one-touch down windows
• Driver and passenger one-touch up windows
• Variable intermittent front windshield wipers
• Rear window defroster

• Galvanized steel/aluminum body panels with side impact beams
• 2 front tow hooks
• Body-coloured front bumper
• Body-coloured rear bumper
• Rear bumper step
• Black front bumper rub strip
• 3 underbody skid plates
• Spray-in pickup bed liner
• Pickup bed-rail protectors
• 4 doors
• Standard style pickup box
• Dark chrome grille
• LED in-box lighting
• Manual extendable trailer mirrors
• Exterior mirror LED spot lights
• Black door mirrors
• Monotone paint
• Full-size spare tire with steel wheel
• Crank-down spare tire
• LT275/70SR18 AT BSW front and rear tires
• Vehicle to trailer hitching assist
• Trailer light test
• Trailer light malfunction warning
• Trailer theft alarm
• Trailer brake controller
• Trailer sway control
• Vehicle and trailer reverse assist with visual graphic guidance only
• Trailer hitch light
• Trailer wiring harness
• Class IV tow rating
• Trailer hitch
• Black fender flares
• Black side window trim
• Body-coloured door handles
• Chrome hub wheel covers
• 18 x 8-inch front and rear machined w/painted accents aluminum wheels

• Fixed audio antenna
• Wireless audio streaming
• Voice activated audio controls
• Primary monitor touchscreen
• 2 total number of 1st row displays
• 8 inch primary display
• AM/FM/satellite
• External memory control
• Internet radio capability
• Seek scan
• Auxiliary input jack
• 3 month satellite trial subscription
• Standard grade speakers
• 6 speakers

• Alternator
• Dual lead acid batteries
• Battery run down protection
• Front and rear ventilated disk brakes
• Four channel ABS brakes
• Electronic parking brake
• Part and full-time 4WD
• Four-wheel drive
• Two-Speed Transfer Case
• All-speed ABS and driveline traction control
• Electronic transfer case shift
• Automatic rear locking differential
• Auto locking hub control
• ICE
• 6.6L V-8 diesel direct injection, intercooled turbo, diesel, engine with 445HP
• 6.6L V-8
• Intercooled turbo
• Front mounted engine
• Compression ignition system
• Longitudinal mounted engine
• Iron engine block
• Aluminum cylinder head
• V8
• Engine oil cooler
• Radiator
• Engine retarder system
• Stainless steel single exhaust
• Diesel
• Driver selectable steering effort
• Speed sensitive power steering
• Hydraulic power-assist steering system
• Re-circulating ball steering
• Off-road ride suspension
• Independent front suspension
• Short and long arm front suspension
• Front anti-roll bar
• Front torsion springs
• Gas-pressurized shock absorbers
• Rigid axle rear suspension
• Rear leaf springs
• Regular grade rear springs
• Leaf spring rear suspension
• 6-speed automatic
• Selectable mode transmission
• Transmission electronic control
• Sequential shift control
• Automatic
• Lock-up transmission
• Overdrive transmission
• Transmission oil cooler

• Restricted driving mode/alerts
• 6 airbags
• Driver front impact airbag
• Seat mounted side impact driver airbag
• Curtain first and second-row overhead airbags
• Passenger front impact airbag
• Seat mounted side impact front passenger airbag
• Airbag occupancy sensor
• Brake assist system
• 4-wheel disk brakes
• 4-wheel antilock (ABS) brakes
• Rear mounted camera
• Reflector headlights
• LED low and high beam headlights
• Auto on/off headlight control
• Delay-off headlights
• Multiple enclosed headlights
• Gauge cluster display size: 4.20
• Analog instrumentation display
• Tire specific low air pressure warning
• LED daytime running lights
• LED brake lights
• LED front fog lights
• Remote activated perimeter approach lighting
• High mounted centre stop light
• Illuminated entry
• Fade interior courtesy lights
• Cab mounted cargo light
• Driver and passenger convex spotter mirrors
• Turn signal indicator in door mirrors
• Manual rear child safety door locks
• Front seatbelt pretensioners
• Rear seat centre 3-point seatbelt
• 2 seatbelt pre-tensioners
• Immobilizer
• Security system
• Remote panic alarm
• Electronic stability control system with anti-roll
• Hill descent control
• Hill start assist

• Smart device wireless mirroring
• Handsfree wireless device connectivity
• Mobile app access
• Mobile hotspot internet access
• 6 USB ports

Engine

Valves per cylinder

4

Engine Cylinders

8

Injection Type

Diesel direct injection

Engine specs

Displacement liters

6.6 L

Bore

4.06 "

Stroke

3.9 "

Compression ratio

16.0

Horsepower

445 HP

SAEJ1349

AUG2004 compliant

Torque

1235.5 Nm

Displacement cubic inch

402.7 cu.in.

Alternator

Alternator Amps

170 A

Battery

Battery rating

1460 CCA

Battery Amps

70 Ah

Transmission

First gear ratio

4.03

Second gear ratio

2.36

Third gear ratio

1.53

Fourth gear ratio

1.15

Fifth gear ratio

0.85

Sixth gear ratio

0.67

Reverse gear ratio

3.06

Transmission Speeds

6

Tires

Front tire width

10.8 "

Front tire aspect ratio

70

Front tire diameter

18.0 "

Rear tire width

10.8 "

Rear tire aspect ratio

70

Rear tire diameter

18.0 "

Front tires LT load rating

E

Rear tires LT load rating

E

Drivetrain

Axle ratio

3.73

Brakes

Front brake diameter

356 mm

Rear brake diameter

358 mm

Fuel

DEF capacity

20.06 litres

Fuel tank capacity

136.3 litres

Climate control

Air Conditioning

Air Conditioning

Weights

GVWR

4,831 kg

GAWR front

2,540 kg

GAWR rear

2,994 kg

Standard curb weight

3514.9 kg

Standard payload

1616.2 kg

Trailering

Towing capacity

6,577 kg

Max gross combined weight rating

12,474 kg

Fifth-wheel towing capacity

8,391 kg

Gooseneck towing capacity

8,391 kg

Interior measurements

Leg room first-row

1131.1 mm

Leg room second-row

1102.4 mm

Head room first-row

1093 mm

Head room second-row

1013 mm

Hip room first-row

1554 mm

Hip room second-row

1530.1 mm

Shoulder room first-row

1676.9 mm

Shoulder room second-row

1658.6 mm

Exterior measurements

Cargo box length

2087.9 mm

Cargo box min width

1317 mm

Cargo box volume

1968 L

Pickup box depth

533.4 mm

Cargo box max width

1813.6 mm

Vehicle body length

6352 mm

Vehicle body width

2079 mm

Vehicle body height

2023.1 mm

Wheelbase

4037.1 mm

Vehicle turning radius

8.03 m

Min ground clearance

257.1 mm

Front track

1729.7 mm

Rear track

1734.8 mm

Loading floor height

38.9 inches

Fuel economy

Fuel economy fuel type

Diesel

null

Cab to axle

1069.3 mm