2020 GMC Sierra SLT
3GTU9DFD8LG156491
This vehicle is no longer listed. The figures below describe the market for this build.
Listings
Full listing history on VehiSales →No active listings of this exact VIN right now.
Decoded from the VIN
NHTSA build data for 3GTU9DFD8LG156491- ✓ Backup camera
- ✓ Blind-spot monitor
- ✓ Lane departure
- ✓ ABS
- ✓ Electronic stability
Safety & recalls
NHTSA crash tests & recall campaigns for this model yearThe 2020 GMC Sierra 1500 has 12 recall campaigns as of August 2026. NHTSA rated it 4 out of 5 stars overall.
Tested configuration: 2020 GMC Sierra 1500 PU/CC 4WD
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TIRESGeneral Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021…NHTSA campaign 21V115000
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ELECTRICAL SYSTEMGeneral Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks.NHTSA campaign 19V888000
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SEAT BELTSGeneral Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet…NHTSA campaign 20V792000
Recall campaigns apply to the model year, not to one car. Check remedy status for this VIN at nhtsa.gov/recalls.
Model-level data for the 2020 GMC Sierra 1500 from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed August 28, 2026.
Where the price is heading
Typical asking price for a GMC Sierra over the last 6 months — the market softened $166 in that span.
Monthly price table
| Month | Typical price |
|---|---|
| April 2026 | $33,994 |
| May 2026 | $33,900 |
| June 2026 | $33,950 |
| July 2026 | $33,950 |
| August 2026 | $33,760 |
| September 2026 | $33,828 |
Market by model year
Gen 4 · 2019–2021What each model year costs right now — live supply, median asking price and how much value each year keeps versus the newest one.
| Year | Units for sale | Median price | vs newest | Avg mileage |
|---|---|---|---|---|
| 2021 | 30 | $34,402 | 100% | 82,965 mi |
| 2020 | 35 | $32,956 | 96% | 88,851 mi |
| 2019 | 27 | $29,995 | 87% | 88,797 mi |
Units for sale — listings of each model year in the latest nightly market snapshot.