Standard equipment
Standard equipment has not been verified for this trim yet.
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VEHICLE GUIDE
2021 GMC Sierra 2500hd SLT
Find your fit. Know your next move.
Use this guide to compare 3 known trims and ownership, then carry the trim and configuration you choose into the rest of AutoUnite.
3KNOWN TRIMS
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2021 model-year guide3KNOWN TRIMS
TRIM DETAIL
SLT
See the defining facts for this trim, then choose an exact configuration.
What you gain / what you give up
DECISION INTELLIGENCE
What you gain / what you give up
Only verified additions and losses are shown. If we can't prove it, we leave it unknown.
Choose an exact configuration to see verified trim tradeoffs
We won't apply one configuration's gains or losses to every version of the trim.
Optional equipment
Optional equipment has not been verified for this trim yet.
Packages
Package availability does not confirm installation on a specific VIN.
- Gmc protection package
- Snow plow prep camper package
- Cargo convenience package
- X31off road and protection package
- X31off road package
- Assist step and floor liner package
- Slt preferred package
- Slt premium package
- Slt convenience package
- Texas edition slt premium package
- Denali ultimate package
- Technology package
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Verified facts available for this trim
These facts are source-backed for this trim. What applies can still vary by exact configuration.
Packages
- Gmc protection package
- Snow plow prep camper package
- Cargo convenience package
- X31off road and protection package