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Chevrolet Silverado 2500HD generations by year

Chevrolet Silverado 2500HD generations covered here: Chevrolet Silverado HD 4th generation (MY2020-current). The table gives the first and last dates by market, and each generation lists its codes, facelifts, how to tell it apart and the sources.

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Years by market

Generation AustraliaUnited StatesEurope and the UKSouth AfricaThailand
Chevrolet Silverado HD 4th generation (MY2020-current) Not confirmed2020 model year to todayNot soldNot soldNot sold

"Not confirmed" means we found no source we could open for that date; "Not sold" means the generation was not offered there. Dates are first and last sale or production as the sources give them.

Chevrolet Silverado HD 4th generation (MY2020-current)

Codes: GMT T1XX (HD). Also called: GMC Sierra 2500HD (twin).

How to tell it apart: Very tall, flat-faced heavy-duty truck with a massive grille and a hood scoop; 2020-2023 have headlights split by a chrome bar, 2024 on have one-piece C-shaped lamps.

  • MY2024 refresh (26 Sep 2022): Redesigned headlight and grille: bar that split the headlights removed, single lens with angular C-shaped brow; ZR2 HD added later (The Drive 26 Sep 2022). Wikipedia: Duramax up to 470 hp / 975 lb-ft.

Our files for this generation: Chevrolet Silverado 2500HD 4th gen.

Market notes and sources
  • Australia: GMSV said the Silverado 2500 was due late 2021, converted to RHD by Walkinshaw (CarsGuide 10 Nov 2020). Actual first sale date not found.
  • United States: Revealed at Flint Assembly 5 Feb 2019; production May 2019, dealers late summer 2019 (Wikipedia). Flint shut 20 May 2019 to retool, production resumed 3 June 2019 (MarkLines 22 May 2019); search snippets say shipping from week of 10 June 2019.
  • Europe and the UK: Not confirmed.
  • South Africa: Not confirmed.
  • Thailand: Not confirmed.

Not confirmed: The request says 2020-2024; sources show this generation still in production after MY2024 (Wikipedia lists model years to present).; AU first sale date of the 4th-gen 2500HD not confirmed; HSV sold RHD 2500HD from mid-2018, generation not identified in sources.; Exact first dealer delivery date (June 2019) from search snippets only..

  1. MarkLines: GM temporarily shuts down Flint to retool for 2020 Silverado HD (22 May 2019): production restart 3 June 2019
  2. The Drive: Big 2024 Chevy Silverado HD refresh (26 Sep 2022): MY2024 refresh timing and visible change
  3. CarsGuide: HSV replaced by GMSV (10 Nov 2020): AU 2500 due late 2021
  4. Wikipedia: Chevrolet Silverado: reveal date, production May 2019, still in production

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