The 2027 GMC Sierra is expected to usher in the all-new, next-generation Sierra 1500 light-duty full-size pickup truck, while carrying over the Sierra HD model.
Quick Facts
| Sierra 1500 | Sierra HD | |
|---|---|---|
| Assembly location(s) | GM Fort Wayne Assembly in Fort Wayne, Indiana, USA and GM Silao Assembly in Silao, Mexico | GM Flint Assembly in Flint, Michigan, USA |
| Type | Light-duty full-size pickup truck or chassis cab | Heavy-duty full-size pickup truck or chassis cab |
| Layout | Front-Engined, Longitudinal | Front-Engined, Longitudinal |
| Engine(s) | Turbo 2.7L I4 Gasoline, Gen Six Small Block V8 + PHEV Option, Turbo-Diesel 3.0L Duramax I6 | Atmospheric 6.6L V8 L8T, Turbodiesel 6.6L V8 L5P Duramax |
| Transmission(s) | 8-Speed Auto, 10-Speed Auto | 10-Speed Auto, 10-Speed Auto Allison |
| Drive wheels | Rear-Wheel-Drive, Four-Wheel-Drive | Rear-Wheel-Drive, Four-Wheel-Drive |
| Availability | U.S.A., Canada, Mexico, Middle East, South Korea | U.S.A., Canada, Mexico, Middle East |
| Predecessor | 2027 GMC Sierra | |
| Successor | 2028 GMC Sierra | |
Expectations – Sierra 1500
The 2027 Sierra 1500 is expected to introduce an all-new model, representing the first model year of the fifth generation truck. Here’s what we expect from the next-gen Sierra 1500:
- Powertrain:
- Next-gen / sixth-gen GM Small Block gasoline engine(s) with notable improvements in performance and efficiency, including a 10 percent reduction in greenhouse gas emissions compared to current models. The sixth-gen Small Block engine(s) will be produced at the GM Flint Engine Plant, which received a $579 million investment to make them
- The 3.0L I6 LZ0 turbodiesel Duramax engine and 2.7L I4 L3B turbocharged gasoline engine, otherwise known as TurboMax, are expected to carry over
- A new plug-in hybrid (PHEV) powertrain is also expected as part of GM’s pivot to offer PHEV models
- Design: all-new exterior design that will serve as an evolution of the one seen on the current model
- Cabin: updated interior with the newest infotainment system
- Architecture: an updated platform known as T1-2, an updated version of the T1 platform
- Improvements in driving characteristics and capabilities, including unladed driving, towing and hauling, plus new comfort and convenience features
Expectations – Sierra HD
We expect the 2027 GMC Sierra HD range, consisting of the 2500 HD and 3500 HD models, to carry over with only a few changes compared to the 2025 and 2026 models. An all-new Sierra HD should land for the 2028 model year, adopting the generational improvements from the 2027 Sierra 1500.
- See more about the 2028 GMC Sierra HD
Availability
We expect the 2027 Sierra 1500 to enter production during the second half of 2026 and the 2027 Sierra HD to enter production during the first half of 2026.
Production
We expect production of the 2027 Sierra range to continue taking place across the following three plants, two in the U.S. and one in Mexico.
Light-Duty
- GM Fort Wayne plant, Indiana, USA
- GM Silao plant, Guanajuato, Mexico
Heavy-Duty
- GM Flint plant, Michigan, USA
Sales
See GMC Sierra sales numbers for global markets.
Discussion
Discuss the 2027 GMC Sierra in our GMC forum.
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Photos
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