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Info & specs

GMC Sierra 2500

GMC Sierra 2500 side view

Pros and cons of the GMC Sierra 2500

  • Huge power from optional diesel
  • Impressive towing and hauling ability
  • Quiet highway ride
  • Limited rear visibility
  • No adaptive cruise control
  • High fuel consumption
This is general information and should not be relied on as purchasing advice.

Safety ratings of the GMC Sierra 2500

NHTSA logo

Safety ratings provided by NHTSA

  • Number of airbags6

Specifications of the GMC Sierra 2500

Key specifications available across all trim levels
  • Seats3 - 6
  • Doors2 - 4
  • Fuel typeGas
  • TransmissionAutomatic
  • City consumption-
  • Highway consumption-
  • Width2035 - 2045 mm
  • Length5701 - 6563 mm
  • Trunk space-
  • Cargo space-
Exact values depend on trim and engine choice.

Trims available with the GMC Sierra 2500

What is a trim? Trims are different options of the same car with different features and equipment. The specs depend on the trim you choose.This version of the GMC Sierra 2500 2015 - present is available in 4 trims:

WT trim features and specs

Available with the WT trim:
  • Driver seat has lumbar support (optional)
  • Electric windows (optional)
  • Front seats electrically adjustable (optional)
  • Front seats have lumbar support (optional)
Available across all trims:
  • Cargo barrier (optional)
  • Center arm rest between front seats
  • ISOFIX installation points
  • Multifunction steering wheel
  • Power steering
  • Spare wheel
Available with the WT trim:
  • Alloy wheels (optional)
  • Door mirrors electrically adjustable (optional)
  • Extended cab
  • Four-wheel drive (optional)
  • LED daytime running lights
  • Long wheel base
  • Regular cab
  • Steel wheels
Available across all trims:
  • Bi-Xenon headlights (optional)
  • Crew cab
  • Daytime running lights
  • Short wheel base
  • Standard roof
Available with the WT trim:
  • Dimming interior mirror (optional)
  • Rear-wheel drive
  • Side curtain airbag (optional)
Available across all trims:
  • Anti-lock Braking System (ABS)
  • Brake assist system
  • Disc brakes
  • Dusk sensor
  • Electronic traction control
  • Emergency call system (optional)
  • Four-wheel drive
  • Front-driver airbag
  • Front-passenger airbag
  • Side airbag
  • Stability control
  • Tire pressure indicator
Available with the WT trim:
  • Apple CarPlay (optional)
  • Bluetooth (optional)
  • CD player (optional)
  • MP3-CD player (optional)
  • Navigation system (optional)
  • Rear sensors (optional)
  • Rear view camera (optional)
  • Touchscreen (optional)
  • WiFi (optional)
Available across all trims:
  • Android Auto (optional)
  • Computer
  • Cruise control
  • Digital cockpit
  • Hill start assist
  • Power door locks
  • Radio
  • USB port for front passengers
1 engine is available with the WT trim:
6 L - Gas - 360 hp
Combined consumption:-
Transmission:Automatic
Range:-

Denali trim features and specs

Available with the Denali trim:
  • 2 climate zones
  • Air conditioning (automatic)
  • Driver seat has lumbar support
  • Electric windows
  • Front seats electrically adjustable
  • Heated front seats
  • Heated steering wheel
  • Leather steering wheel
  • Passenger seat has lumbar support
  • Ventilated front seats
Available across all trims:
  • Cargo barrier (optional)
  • Center arm rest between front seats
  • ISOFIX installation points
  • Multifunction steering wheel
  • Power steering
  • Spare wheel
Available with the Denali trim:
  • Alloy wheels
  • Door mirrors electrically adjustable
  • Fog lights
  • Four-wheel drive
  • LED daytime running lights
  • Sunroof (optional)
Available across all trims:
  • Bi-Xenon headlights (optional)
  • Crew cab
  • Daytime running lights
  • Short wheel base
  • Standard roof
Available with the Denali trim:
  • Collision warning system (optional)
  • Dimming interior mirror
  • Lane departure warning (optional)
  • Overtaking sensors (optional)
  • Side curtain airbag
Available across all trims:
  • Anti-lock Braking System (ABS)
  • Brake assist system
  • Disc brakes
  • Dusk sensor
  • Electronic traction control
  • Emergency call system (optional)
  • Four-wheel drive
  • Front-driver airbag
  • Front-passenger airbag
  • Side airbag
  • Stability control
  • Tire pressure indicator
Available with the Denali trim:
  • Apple CarPlay
  • Bluetooth
  • CD player
  • Front sensors
  • MP3-CD player
  • Navigation system
  • Rear sensors
  • Rear view camera
  • Touchscreen
  • WiFi
Available across all trims:
  • Android Auto (optional)
  • Computer
  • Cruise control
  • Digital cockpit
  • Hill start assist
  • Power door locks
  • Radio
  • USB port for front passengers
1 engine is available with the Denali trim:
6 L - Gas - 360 hp
Combined consumption:-
Transmission:Automatic
Range:-

SLE trim features and specs

Available with the SLE trim:
  • 2 climate zones (optional)
  • Air conditioning (automatic) (optional)
  • Driver seat has lumbar support
  • Electric windows
  • Front seats electrically adjustable (optional)
  • Front seats have lumbar support (optional)
  • Heated front seats (optional)
  • Leather steering wheel
  • Passenger seat has lumbar support (optional)
Available across all trims:
  • Cargo barrier (optional)
  • Center arm rest between front seats
  • ISOFIX installation points
  • Multifunction steering wheel
  • Power steering
  • Spare wheel
Available with the SLE trim:
  • Alloy wheels
  • Door mirrors electrically adjustable
  • Extended cab
  • Fog lights (optional)
  • Four-wheel drive (optional)
  • LED daytime running lights (optional)
  • Long wheel base
  • Medium wheel base
  • Regular cab
Available across all trims:
  • Bi-Xenon headlights (optional)
  • Crew cab
  • Daytime running lights
  • Short wheel base
  • Standard roof
Available with the SLE trim:
  • Collision warning system (optional)
  • Dimming interior mirror (optional)
  • Lane departure warning (optional)
  • Rear-wheel drive
  • Side curtain airbag (optional)
Available across all trims:
  • Anti-lock Braking System (ABS)
  • Brake assist system
  • Disc brakes
  • Dusk sensor
  • Electronic traction control
  • Emergency call system (optional)
  • Four-wheel drive
  • Front-driver airbag
  • Front-passenger airbag
  • Side airbag
  • Stability control
  • Tire pressure indicator
Available with the SLE trim:
  • Apple CarPlay (optional)
  • Bluetooth
  • CD player
  • Front sensors (optional)
  • MP3-CD player
  • Navigation system
  • Rear sensors
  • Rear view camera
  • Touchscreen
  • WiFi (optional)
Available across all trims:
  • Android Auto (optional)
  • Computer
  • Cruise control
  • Digital cockpit
  • Hill start assist
  • Power door locks
  • Radio
  • USB port for front passengers
1 engine is available with the SLE trim:
6 L - Gas - 360 hp
Combined consumption:-
Transmission:Automatic
Range:-

SLT trim features and specs

Available with the SLT trim:
  • 2 climate zones
  • Air conditioning (automatic)
  • Driver seat has lumbar support
  • Electric windows
  • Front seats electrically adjustable
  • Front seats have lumbar support (optional)
  • Heated front seats
  • Heated steering wheel (optional)
  • Leather steering wheel
  • Passenger seat has lumbar support
  • Ventilated front seats (optional)
Available across all trims:
  • Cargo barrier (optional)
  • Center arm rest between front seats
  • ISOFIX installation points
  • Multifunction steering wheel
  • Power steering
  • Spare wheel
Available with the SLT trim:
  • Alloy wheels
  • Door mirrors electrically adjustable
  • Extended cab
  • Fog lights
  • Four-wheel drive (optional)
  • LED daytime running lights
  • Long wheel base
  • Sunroof (optional)
Available across all trims:
  • Bi-Xenon headlights (optional)
  • Crew cab
  • Daytime running lights
  • Short wheel base
  • Standard roof
Available with the SLT trim:
  • Collision warning system (optional)
  • Dimming interior mirror
  • Lane departure warning (optional)
  • Rear-wheel drive
  • Side curtain airbag
Available across all trims:
  • Anti-lock Braking System (ABS)
  • Brake assist system
  • Disc brakes
  • Dusk sensor
  • Electronic traction control
  • Emergency call system (optional)
  • Four-wheel drive
  • Front-driver airbag
  • Front-passenger airbag
  • Side airbag
  • Stability control
  • Tire pressure indicator
Available with the SLT trim:
  • Apple CarPlay (optional)
  • Bluetooth
  • CD player
  • Front sensors (optional)
  • MP3-CD player
  • Navigation system
  • Rear sensors
  • Rear view camera
  • Touchscreen
  • WiFi
Available across all trims:
  • Android Auto (optional)
  • Computer
  • Cruise control
  • Digital cockpit
  • Hill start assist
  • Power door locks
  • Radio
  • USB port for front passengers
1 engine is available with the SLT trim:
6 L - Gas - 360 hp
Combined consumption:-
Transmission:Automatic
Range:-

Overview of the GMC Sierra 2500

Learn about the GMC Sierra 2500

Summary

The GMC Sierra 2500 HD is the middle child of GMC's full-size pickup line. Bigger and more powerful than the Sierra 1500, the HD excels at towing and hauling. This makes it a popular choice for construction crews, especially with its powerful diesel engine.

Available in double and crew cab configurations, with two box lengths, the Sierra HD can pull double duty as a family vehicle. While its appeal is undeniable, remember that even the best diesel engine is going to cost you at the pumps.

Safety

The Sierra 2500 HD is a durable truck built to tackle any worksite demands. The steel frame stands up to abuse while keeping you safe. A high seating position gives you a commanding view of the road ahead. Rear visibility is limited, but a standard rearview camera improves this drawback on models as of 2018—though this feature could be added in models from 2009 on upper trims.

Other standard safety features on the 2019 include:

  • Electronic Stability Control (ESC), which reduces skidding
  • Seven airbags
  • Hill Start Assist
  • Trailer Sway Control, which keeps the truck and trailer in line
  • Teen Driver Technology, providing young drivers with a performance report and keeps most driver assistance tech permanently on

Unfortunately, the Sierra 2500 HD lacks an adaptive cruise control feature. This means more frequent manual speed control on the highway, even more so if you're towing a large load. 

Interior

The Sierra 2500 is both a workhorse and a luxurious family ride. The base 2500 features rubberized flooring for easy cleanup, while the Denali trim has thick carpeting. Every Sierra comes with plenty of room, comfortable seats and easy-to-use controls.

Technology

A truck doesn't have to be old-fashioned, and the Sierra 2500 proves that with a strong standard suite of tech. Every 2019 model comes with a 7-inch touchscreen, Apple CarPlay, Android Audio, and a six-speaker stereo. Optional tech includes:

  • Driver Alert Package with a Lane Departure Warning, Forward Collision Alert, and Front and Rear Park Assist
  • 4G LTE Wi-Fi hot spot, allowing owners to stay connected and turn their truck into a mobile office
  • Hill Descent Control, which automatically applies the brakes on steep downhills to maintain a safe pace

Older models don't lack in tech—relative to the time they were launched, of course. For instance, the 2009 comes standard with a CD player, satellite radio and a tilt steering wheel for the driver to adjust—on the SLE trim, you can add heated mirrors and dual-zone automatic climate control for extra comfort.

Space

The Sierra 2500 HD offers up an impressive amount of space for passengers and cargo alike. Its two box lengths are 2 m and 2.5 m, giving the Sierra a maximum payload of up to 1,486 kg. Both cab options easily fit six people. Pick the larger crew cab and the second row is almost as spacious as the front. With multiple storage cubbies throughout the cabin, this truck can carry just about anything you can throw at it.

Comfort

The General Motors small-block V8 engine has provided the Sierra 2500 with flexibility and power for multiple generations. Its optional Duramax diesel engine lets the driver rev and brake with ease. Low-end power and better fuel mileage make the Sierra 2500 a comfortable and quiet long-distance cruiser. The 2500 rides smoothly and handles easily, even over harsh terrain.

Frequently asked questions about the GMC Sierra 2500

When properly equipped, the GMC Sierra 2500 has a maximum payload of 1,486kg. Its maximum towing capacity is up to 6,577kg.

The Z71 package is the off-road suspension option for the Sierra 2500. It includes more robust shocks, a hill descent control feature, and under-body shielding for off-road driving.

The Silverado and Sierra are mechanically identical. Exterior styling is a matter of preference, whereas the GMC interior has a more upscale feel, especially in Denali trim.

Good news for big haulers: The Sierra 2500 HD can tow a fifth wheel trailer when properly equipped. A factory fifth wheel prep package is an available option.

The Sierra 2500 is known as a three-quarter ton truck. It sits between the 1500 (half ton) and 3500 HD (one ton) models in terms of maximum payload.