11,231 for sale · 13 auction results · latest Nov 4, 2026
The median asking price of a GMC Sierra 1500 SLT is $36,125, across 11,231 for sale with a median model year of 2022. The 2025, the model year with the most for sale, has a median asking price of $40,443.
Over the last three years, 12 sold at auction for a median of $21,500. Their median model year is 2005, against 2022 for the cars for sale: these are older cars, not a guide to what a GMC Sierra 1500 SLT for sale costs today. Compare prices by model year in the chart above.
Where GMC Sierra 1500 SLT auction prices are heading, quarter by quarter.
Every sale and listing by mileage, the middle 50% of prices and how much 10,000 miles take off.
| Trim | Years | For sale | Median ask |
|---|---|---|---|
| SLT Z71 4×4 | 1999–2006 | — | — |
| SLT Ext. | 2007–2013 | 8 | $9.9k |
| SLT 8 | 2019–2024 | 4 | $39k |
| SLT 4×4 | 2000–2010 | — | — |
| SLT Premium Plus | 2020–2026 | 4 | $38k |
| SLT 5.75 ft. 147.4 in. WB | 2025 | 3 | $40k |
| SLT 5 3/4 ft | 2015–2025 | 2 | $27k |
| SLT 147 | 2019–2025 | 2 | $38k |
| SLT 5.8 ft. | 2006–2025 | 1 | $10k |
| SLT 143.5 |
| MY | Class | Powertrain | MPG (comb.) | EV range | Engine | Fuel / yr |
|---|---|---|---|---|---|---|
| 2006 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | FFV · Gas | 13–17 | — | 4.3–6 L | $3,950–$6,300 |
| 2005 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | FFV · Gas | 13–17 | — | 4.3–6 L | $3,950–$5,500 |
| 2004 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | FFV · Gas | 13–16 | — | 4.3–6 L | $4,200–$5,150 |
| 2003 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | FFV · Gas | 14–16 | — | 4.3–5.3 L | $4,200–$4,800 |
| 2002 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | Gas | 14–16 | — | 4.3–5.3 L | $4,200–$4,800 |
| 2001 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | Gas | 11–17 | — | 4.3–6 L | $3,950–$6,100 |
| 2000 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | Gas | 14–18 | — | 4.3–5.3 L | $3,700–$4,800 |
| 1999 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | Gas | 14–17 | — | 4.3–5.7 L | $3,950–$4,800 |
| 1998 | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD | Diesel · Gas | 13–18 |
The median asking price of a GMC Sierra 1500 SLT is $36,125, across 11,231 cars for sale in the U.S. Most are priced between $5,248 and $52,599, depending on the model year and mileage. The 2025, the model year with the most for sale, asks a median of $40,443. Cars sold at auction over the last three years were mostly older (a median model year of 2005, against 2022 for those for sale) and sold for a median of $21,500, so they are not a guide to today's asking prices.
Among model years with at least 10 cars for sale, the 2006 GMC Sierra 1500 SLT asks the least: a median of $8,999 across 13 cars, with a typical 200,205 miles. The 2026 asks $47,066.
The 2025: 2,034 of the 11,231 for sale, at a median asking price of $40,443.
The state map, GMC Sierra 1500 SLTs listed below market now, every model year's sales and asking prices, and the latest results.
| 2017 |
| 1 | $30k |
| SLT 5.3L V8 | 2017–2026 | 1 | $50k |
| SLT All-Terrain | 2016 | 1 | $20k |
| — |
| 4.3–6.5 L |
| $3,700–$6,400 |
| 1997 | Standard Pickup Trucks | Diesel · Gas | 13–18 | — | 4.3–6.5 L | $3,700–$6,400 |
| 1996 | Standard Pickup Trucks | Diesel · Gas | 14–18 | — | 4.3–6.5 L | $3,700–$6,400 |
| 1995 | Standard Pickup Trucks, Standard Pickup Trucks/2wd | Diesel · Gas | 13–19 | — | 4.3–6.5 L | $3,950–$6,400 |
| 1994 | Standard Pickup Trucks | Diesel · Gas | 12–19 | — | 4.3–6.5 L | $3,700–$6,400 |
| 1993 | Standard Pickup Trucks, Standard Pickup Trucks 2WD | Diesel · Gas | 12–18 | — | 4.3–6.2 L | $3,950–$5,650 |
