“Get the upgraded seats. They lean back to far in the basic model and hurt my legs”
2019 GMC Sierra 2500: What's New, Specs & Features
Last updated August 13, 2026
The main change for 2019 is a 4WD Regular Cab configuration joining the base Sierra 2500 lineup. Denali also drops its natural-gas powertrain; otherwise, this final year before the 2020 redesign is largely a carryover.
About the 2019 GMC Sierra 2500
3rd generation (2015-2019), final model year before the 2020 redesign
GMC positioned the Sierra 2500HD as a heavy-duty work and towing truck with a more polished cabin and exterior than many traditional work pickups. Its core strengths were V8 power, integrated trailer-control hardware, a strong cargo box and practical bed access. Upper trims added genuine comfort and luxury without changing the truck’s basic purpose: carrying heavy loads, pulling large trailers and serving owners who wanted capability without a bare-bones interior.
The 2019 Sierra 2500 ranges from a work-focused base truck to the comfort-oriented Denali. The base trim has a 7-inch touchscreen with Apple CarPlay and Android Auto, while SLE adds useful trailering equipment, SLT brings heated leather-appointed seats, and Denali tops the range with ventilated front seats, navigation, Bose audio and added driver-assistance features.
What changed, by category
Powertrain
The base trim adds a 4WD Regular Cab configuration. The Denali drops its natural-gas powertrain.
2019 GMC Sierra 2500 specs and features by trim
| Feature | ||||
|---|---|---|---|---|
| Engine | V8, Compressed Natural Gas, 6.0 Liter / V8, Turbo Diesel, 6.6 Liter / V8, Flex Fuel, 6.0 Liter | V8, Turbo Diesel, 6.6 Liter / V8, Flex Fuel, 6.0 Liter / V8, Compressed Natural Gas, 6.0 Liter | V8, Turbo Diesel, 6.6 Liter / V8, Compressed Natural Gas, 6.0 Liter / V8, Flex Fuel, 6.0 Liter | V8, Turbo Diesel, 6.6 Liter / V8, Flex Fuel, 6.0 Liter |
| Transmission | Automatic, 6-Spd Allison w/Overdrive | Automatic, 6-Spd HD w/Overdrive | Automatic, 6-Spd HD w/Overdrive | Automatic, 6-Spd Allison w/Overdrive |
| Drivetrain | 4WD | 4WD | 4WD | 4WD |
| Fuel Type | Natural Gas / Diesel / Flexible Fuel | Diesel / Flexible Fuel / Natural Gas | Diesel / Natural Gas / Flexible Fuel | Diesel / Flexible Fuel |
| Horsepower | 360–445 hp | 360–445 hp | 360–445 hp | 360–445 hp |
| Torque | 380–910 lb-ft | 380–910 lb-ft | 380–910 lb-ft | 380–910 lb-ft |
| Max Towing | 13000–14100 lb | 13000–13900 lb | 13000–14500 lb | 13000 lb |
| Rear Legroom | 34.6–40.9 in | 40.9 in | 34.6–40.9 in | 40.9 in |
| Seats | 5–6 | 5 | 3–6 | 5 |
| Doors | 4 | 4 | 2–4 | 4 |
| Alarm System | ||||
| Hill Descent Control | ||||
| Lane Departure Warning | ||||
| Park Assist | ||||
| Rear View Camera | ||||
| Alloy Wheels | ||||
| Auto-Dimming Exterior Mirrors | ||||
| Fog Lights | ||||
| Heated Mirrors | ||||
| Memory Exterior Mirrors | ||||
| Power Moonroof | ||||
| Power Folding Exterior Mirrors | ||||
| Power Mirrors | ||||
| Privacy Glass | ||||
| Remote Control Liftgate/Trunk Release | ||||
| Side Steps | ||||
| Bluetooth | ||||
| Front DVD Entertainment System | ||||
| Navigation System | ||||
| Rear DVD Entertainment System | ||||
| Satellite Radio | ||||
| Smartphone Interface | ||||
| Subwoofer | ||||
| Touch Screen Monitor | ||||
| USB Ports | ||||
| Auto-Dimming Interior Mirror | ||||
| Dual Power Front Seats | ||||
| Dual-Zone Climate Control | ||||
| Heated Front Seats | ||||
| Heated Steering Wheel | ||||
| Integrated Garage Door Opener | ||||
| Leather Seats | ||||
| Leather-Wrapped Steering Wheel | ||||
| Memory Driver's Seat | ||||
| Power Adjustable Pedals | ||||
| Power Driver Seat | ||||
| Remote Start | ||||
| Remote Keyless Entry | ||||
| Tilt Wheel | ||||
| Tilt/Telescoping Steering Wheel | ||||
| Ventilated Front Seats | ||||
Frequently asked questions
What changed on the 2019 GMC Sierra 2500 compared with the 2018 model?
The key change is a 4WD Regular Cab configuration for the base 2019 GMC Sierra 2500. The Denali natural-gas powertrain was dropped, while the truck's styling, safety features, technology and basic structure otherwise carried over.
Was the 2019 GMC Sierra 2500 redesigned?
No. The 2019 GMC Sierra 2500 is the final model year of the 2015–2019 generation, with the full redesign arriving for 2020.
Did the 2019 GMC Sierra 2500 Denali retain its natural-gas powertrain?
No. The natural-gas powertrain was dropped from the Denali for 2019.
Does the 2019 GMC Sierra 2500 have Apple CarPlay and Android Auto?
Yes. Every 2019 GMC Sierra 2500 trim has a touchscreen with Apple CarPlay and Android Auto. The base truck uses a 7-inch screen, while SLE, SLT and Denali have an 8-inch screen.
Which 2019 GMC Sierra 2500 trim has the most comfort and driver-assistance equipment?
Denali has the richest equipment in the 2019 Sierra 2500 lineup. It has heated and ventilated leather-appointed front seats, navigation, Bose audio, wireless phone charging, forward-collision alert, lane-departure warning and front and rear parking sensors.
2019 GMC Sierra 2500 Reviews
What owners are saying about the 2019 GMC Sierra 2500.
4.2
2019 GMC Sierra 2500
(122 reviews)
“Options are excellent but don't get manufacturer "goose neck" assembly. It's a joke - thought up by a man.”
“GMC Diesel 4x4 2500 Denali has everything anyone could ask for in a vehicle, it's classy, reliable and worth the money.”