2021 GMC Sierra SLT
VIN
3GTP8DED5MG177722
This 2021 GMC Sierra SLT is listed at $31,887 with 86,021 miles in Laguna Niguel, CA.
Market Price Range
Below market
$31,726
Typical price
$34,981
Above market
$40,579
Based on
13
comparable same-build listings.
below typical price
Market data as of July 27, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 5.3L · V8 · Gasoline
- Drive
- 4x2
- 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 |
|---|---|---|---|---|
| Laguna Niguel GMC Cadillac | Laguna Niguel, CA 92677 | $31,887 | 86,021 mi | 2026-07-23 |
| Laguna Niguel GMC | Laguna Niguel, CA 92677 | $31,802 | 86,021 mi | 2026-07-22 |
| Cadillac of Laguna Niguel | Laguna Niguel, CA 92677 | $32,998 | 86,021 mi | 2026-07-14 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Laguna Niguel GMC Cadillac | Laguna Niguel, CA 92677 | $33,083 | 86,021 mi | 2026-07-20 |
| Laguna Niguel GMC | Laguna Niguel, CA 92677 | $32,998 | 86,021 mi | 2026-07-15 |
| Cadillac of Laguna Niguel | Laguna Niguel, CA 92677 | — | 86,021 mi | 2026-07-14 |
| — | $33,992 | 67 mi | 2024-07-09 | |
| Cadillac of Laguna Niguel | Laguna Niguel, CA 92677 | $33,992 | 67,290 mi | 2024-07-09 |
