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2015 GMC Sierra Denali
VIN
1GT120E88FF654778
This 2015 GMC Sierra Denali is listed at $35,995 with 136,022 miles in Idaho Falls, ID.
ABOVE TYPICAL
$1,649 above typical price
Asking $35,995 · typical market price $34,346 · based on 96 comparable same-build listings.
Market Price Range
Below market
$22,398
Typical price
$34,346
Above market
$41,700
Based on
96
comparable same-build listings.
This vehicle:
$35,995 — $1,649 above the typical market price ($34,346)
Market data as of August 16, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 6.6L · V8 · 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
Safety & ownership
EPA fuel economy (MPG)
City
16
Highway
23
Combined
19
Est. fuel cost:
$2,450/year
Assumes 15,000 miles a year at $3.10/gallon and 19 MPG combined.
Model-level data for the 2015 GMC Sierra from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed July 28, 2026.
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Smith Honda | Idaho Falls, ID 83402 | $35,995 | 136,022 mi | 2026-07-22 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Smith Chevrolet | Idaho Falls, ID 83402 | $35,995 | 136,022 mi | 2026-07-22 |
What would this 2015 GMC Sierra Denali cost per month?
Estimate the monthly payment on a $35,995 vehicle. Move the numbers to match your own loan.
10% down
7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.
Loan term
Estimated monthly payment
$641
per month
60 months · 7.0% APR · $3,600 down
Amount financed
$32,395
Total interest
$6,065
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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