2020 GMC Sierra
1GTR8AEF2LZ229136
This vehicle is no longer listed. The figures below describe the market for this build.
Last listed by Legacy GMC
Hours
- Mon–Fri
- 7:30 AM – 6:00 PM
- Sat
- 8:00 AM – 3:00 PM
This VIN is no longer listed by this dealer. They may still have a similar vehicle — ask.
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2020 GMC Sierra
VIN 1GTR8AEF2LZ229136
Market price range
Based on 9 comparable same-build listings · Market data as of September 9, 2026Love this car? See what else is out there.
2020 GMC Sierra for sale near SlidellLA
2 cheaper within 50 miles
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50 miles around Slidell
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Vehicle locations appear when available.
Price history for this VIN
Asking prices recorded across 3 listing dates for VIN 1GTR8AEF2LZ229136, spanning 70 days.
Listings
Full listing history on VehiSales →No active listings of this exact VIN right now.
Former listings
| Dealer | Location | Price | Mileage | Listed | Seen |
|---|---|---|---|---|---|
| Legacy GMC | Slidell, LA 70458 | $19,995 | 103,391 mi | 2026-07-25 | 24 d ago |
| Legacy GMC of Slidell | Slidell, LA 70461 | $19,995 | 103,391 mi | 2026-05-16 | 24 d ago |
Decoded from the VIN
NHTSA build data for 1GTR8AEF2LZ229136Full factory specs for this build →
- ✓ Backup camera
- ✓ Blind-spot monitor
- ✗ Lane departure
- ✓ ABS
- ✓ Electronic stability
Fuel economy (EPA)
Assumes 15,000 miles a year at $3.10/gallon and 26 MPG combined.
5-year cost to own
Beyond the sticker: what this 2020 GMC Sierra likely costs over five years at 15,000 mi/yr.
Estimate — insurance and taxes vary by driver and state.
Model-level data for the 2020 GMC Sierra from EPA fueleconomy.gov, refreshed August 27, 2026.
Where the price is heading
Typical asking price for a 2020 GMC Sierra over the last 6 months — the market firmed $5 in that span.
Monthly price table
| Month | Typical price |
|---|---|
| April 2026 | $34,990 |
| May 2026 | $36,244 |
| June 2026 | $36,234 |
| July 2026 | $35,989 |
| August 2026 | $35,461 |
| September 2026 | $34,995 |
How it compares to rivals
Median asking price for comparable body styles listed near this car| Model | Median price | For sale nearby | vs this car |
|---|---|---|---|
| 2020 GMC Sierra (this car) | $21,900 | 9 | — |
| 2020 Ford F-150 | $36,074 | 8 | +$14,174 |
| 2018 Chevrolet Silverado | $25,589 | 6 | +$3,689 |
| 2021 Ram 1500 | $30,688 | 6 | +$8,788 |
| 2019 Chevrolet Colorado | $23,880 | 3 | +$1,980 |
| 2022 Hyundai Santa Cruz | $24,801 | 3 | +$2,901 |
Cheapest active listings of each comparable body style in this region — median of what those models actually ask.
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 | 3,844 | $36,692 | 100% | 83,777 mi |
| 2020 | 2,852 | $35,896 | 98% | 93,373 mi |
| 2019 | 1,848 | $31,770 | 87% | 97,997 mi |
Units for sale — listings of each model year in the latest nightly market snapshot.
