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VEHICLE GUIDE
2021 GMC Sierra 2500hd
Get the important 2021 GMC Sierra 2500hd differences in one clear guide.
Compare 3 known trims and ownership for this model year, then open the exact trim and version when you want the details that change from one version to another.
3KNOWN TRIMS
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2021 model-year guide3KNOWN TRIMS
OWNERSHIP
Know the coverage before you buy.
Start with the manufacturer’s warranty. Check the exact vehicle before assuming coverage remains.
- Basic
- 3 years / 36,000 miles
- Powertrain
- 5 years / 60,000 miles
- Roadside assistance
- 5 years / 60,000 miles
- Corrosion perforation
- 6 years / 100,000 miles
- Hybrid electric unique components
- 8 years / 100,000 miles
Original coverage terms. Remaining coverage depends on the vehicle’s in-service date, mileage and eligibility.
Read the manufacturer’s warranty ↗Before ownership: what to verify
- Confirm remaining warrantyOriginal warranty terms are available here. For a used vehicle, confirm current coverage from the VIN, in-service date, mileage and applicable powertrain.
Maintenance
A verified maintenance schedule is not available here yet.