The 2023 GMC Sierra brings small changes to the Sierra 1500 following a refresh for the 2022 (2022.5) model year, along with minor changes to the Sierra Heavy Duty (HD).
| Assembly Location | GM Flint Assembly in Flint, Michigan, USA and GM Fort Wayne Assembly in Fort Wayne, Indiana, USA | |
| Body Style(s) | Light-Duty and Heavy-Duty Pickup Trucks | |
| Layout | Front-Engined, Longitudinal | |
| Engine(s) | TBD | |
| Transmission(s) | 6-Speed Auto, 8-Speed Auto, 10-Speed Auto, Allison 10-Speed Auto | |
| Drive Wheels | Rear-Wheel-Drive, Four-Wheel-Drive | |
| Availability | U.S.A., Canada, Mexico | |
| Predecessor | 2022 GMC Sierra | |
| Successor | 2024 GMC Sierra | |
Changes, Updates, New Features
GMC Sierra 1500
Minor changes following substantial updates as part of mid cycle enhancement / refresh for 2022 model year.
GMC Sierra HD
Substantial updates as part of mid cycle enhancement / refresh for 2023 model year.
Powertrain
The 2023 GMC Sierra is expected to offer the following engine and transmission choices carried over from the 2022 model year:
| Class | Engine | Fuel | Aspiration | Transmission | Horsepower @ RPM | Torque @ RPM | Axle Ratio |
|---|---|---|---|---|---|---|---|
| Light Duty | 2.7L L3B I4 | Gasoline | Turbocharged | 8-Speed Automatic (MQE) | 310 @ 5600 | 430 @ 1500 | 3.42 |
| Light Duty | 5.3L L84 EcoTec3 V8 | Gasoline | Atmospheric | 2WD 8-Speed Automatic (MQE) / 4WD 10-Speed Automatic (MQB) | 355 @ 5600 | 383 @ 4100 | 3.42 |
| Light Duty | 6.2L L87 EcoTec3 V8 | Gasoline | Atmospheric | 10-Speed Automatic (MQB) | 420 @ 5600 | 460 @ 4100 | 3.23 |
| Light Duty | 3.0L LZ0 Duramax I6 | Diesel | Turbocharged | 10-Speed Automatic (MQB) | 305 @ 3750 | 495 @ 2750 | 3.23 |
| Heavy Duty | 6.6L L8T V8 | Gasoline | Naturally Aspirated | 6-Speed Automatic (MYD) | 401 @ 5200 | 464 @ 4000 | 3.73 |
| Heavy Duty | 6.6L Duramax L5P V8 | Diesel | Turbocharged | 10-Speed Automatic (MGM, MGU) | 445 @ 2800 | 910 @ 1600 | 3.42 |
| Medium Duty | 6.6L Duramax L5D V8 | Diesel | Turbocharged | 6-Speed Automatic | 350 @ 2700 | 700 @ 1600 | 4.10, 4.30, 4.56, 4.88 |
Platform
Both the Sierra 1500 and Sierra HD continue to ride on the GM T1 platform:
- The 2023 Sierra Light Duty continues to ride on the GM T1 platform shared most directly with the Chevy Silverado 1500
- The 2023 Sierra Heavy Duty continues to ride on a more capable version of the same GM T1 platform shared most directly with the Silverado HD
Production
Production of the 2023 Sierra continues at the following plants:
- GM Flint Assembly in Flint, Michigan, USA (HD)
- GM Fort Wayne Assembly in Fort Wayne, Indiana, USA (LD)
- GM Silao Assembly in Silao, Mexico (LD)
Sales
See GMC Sierra sales numbers for all markets, including the United States, Canada, Mexico, and South Korea.
Photos
Photo gallery coming soon.
Discussion
Discuss the 2023 GMC Sierra in our GMC forum.
Sierra News
GMC’s 2025 Sierra 2500 HD: Everything That’s New And Different vs. 2024
A bevy of small but noteworthy changes in store.
Read More »
