2021 GMC Sierra SLT
VIN
3GTU9DET2MG334873
This 2021 GMC Sierra SLT is listed at $38,999 with 62,771 miles in Sioux Falls, SD.
Market Price Range
Below market
$29,523
Typical price
$34,212
Above market
$41,144
Based on
35
comparable same-build listings.
above typical price
Market data as of July 26, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 3.0L · V6 · Diesel
- Drive
- 4WD/4-Wheel Drive/4x4
- Doors
- 4
- Made by
- GENERAL MOTORS LLC
Safety
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Billion Auto Buick GMC | Sioux Falls, SD 57105 | $38,999 | 62,771 mi | 2026-06-14 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Billion Auto - Buick GMC | Sioux Falls, SD 57105 | $39,995 | 62,771 mi | 2026-02-25 |
| Billion Auto Buick GMC | Sioux Falls, SD 57105 | $39,995 | 62,771 mi | 2026-02-18 |
| Billion Auto Buick GMC | Sioux Falls, SD 57105 | $39,744 | 62,771 mi | 2026-02-18 |
| Billion Auto - Buick GMC | Sioux Falls, SD 57105 | $56,835 | 6 mi | 2021-05-15 |
