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2020 GMC Sierra SLT
VIN
1GTU9DED1LZ350215
This 2020 GMC Sierra SLT is listed at $33,478 with 99,546 miles in Oklahoma City, OK.
FAIR PRICE
within $481 of the typical market price
Asking $33,478 · typical market price $32,997 · based on 50 comparable same-build listings.
Market Price Range
Below market
$25,944
Typical price
$32,997
Above market
$39,279
Based on
50
comparable same-build listings.
This vehicle:
$33,478 — within $481 of the typical market price ($32,997)
Market data as of August 16, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 5.3L · V8 · Gasoline
- 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
23
Highway
30
Combined
26
Est. fuel cost:
$1,790/year
Assumes 15,000 miles a year at $3.10/gallon and 26 MPG combined.
Model-level data for the 2020 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 |
|---|---|---|---|---|
| Bob Moore Buick GMC | Oklahoma City, OK 73132 | $33,478 | 99,546 mi | 2026-08-11 |
What would this 2020 GMC Sierra SLT cost per month?
Estimate the monthly payment on a $33,478 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
$597
per month
60 months · 7.0% APR · $3,348 down
Amount financed
$30,130
Total interest
$5,690
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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