Live US dealer listings Median-priced benchmark Updated 2026-10-13
Market price · Used 2023 GMC Sierra 2,747 listings tracked

Used 2023 GMC Sierra Price in the US

A used 2023 GMC Sierra in the US typically lists for $38,998–$49,975, with a median asking price of $44,703 across 2,747 active US dealer listings (as of 2026-10-13). The cheapest one listed right now is $21,280, a 2023 Fleet Base in Prescott, AZ — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.

Used 2023 GMC Sierra · asking prices2,741 listings
$30k$57.5k
Typical range
$38,998 – $49,975
Median
$44,703
Cheapest 5%
under $32,000
Cheapest listed now
$21,280

Browse by model year

typical price per year
More years (19)

Cheapest 10 listed right now

ranked by price
  1. $21,280
    2023 GMC Sierra Fleet Base
    94,945 mi · Prescott, AZ · Findlay GMC Prescott
    View listing →
  2. $21,500
    2023 GMC Sierra Fleet Base
    67,309 mi · Warren, MI · Import American Motors
    View listing →
  3. $21,675
    2023 GMC Sierra Fleet Base
    98,728 mi · Watsonville, CA · Watsonville Chrysler Dodge Jeep Ram
    View listing →
  4. 2023 GMC Sierra
    $21,900
    2023 GMC Sierra Sle
    176,045 mi · Greenbrier, AR · Greenbrier Auto Sales
    View listing →
  5. $21,900
    2023 GMC Sierra Denali
    96,223 mi · Paterson, NJ · Bidgodrive.com
    View listing →
  6. 2023 GMC Sierra
    $23,000
    2023 GMC Sierra Fleet Base
    67,309 mi · Warren, MI · Import American Motors
    View listing →
  7. $23,179
    2023 GMC Sierra Fleet Base
    93,883 mi · Sterling Heights, MI · Suburban Ford of Sterling Heights
    View listing →
  8. 2023 GMC Sierra
    $23,348
    2023 GMC Sierra Fleet Base
    90,586 mi · Bloomington, MN · Walser Toyota
    View listing →
  9. $23,900
    2023 GMC Sierra Fleet Base
    112,100 mi · Amarillo, TX · Tx 66 Autos
    View listing →
  10. $23,999
    2023 GMC Sierra Fleet Base
    105,360 mi · Patterson, CA · Thompson Chevrolet Buick GMC
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2023 GMC Sierra asks $38,998–$49,975. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.

FAQ

How much does a used 2023 GMC Sierra cost?

A used 2023 GMC Sierra in the US typically lists for $38,998 to $49,975, with a median asking price of $44,703 across 2,747 active US dealer listings. Nine in ten are priced between $32,000 and $57,110 (as of 2026-10-13, source: UnderMarket Cars).

Is $45,000 a good price for a used 2023 GMC Sierra?

That sits at about the market median ($44,703) for a used 2023 GMC Sierra. Under $38,998 puts you in the cheapest quarter of active US listings and under $32,000 in the cheapest 5%; above $57,110 is the priciest 5% (as of 2026-10-13).

What is the cheapest used 2023 GMC Sierra for sale right now?

$21,280 — a 2023 GMC Sierra Fleet Base in Prescott, AZ, $23,423 under the median (as of 2026-10-13).

Are these MSRP or real asking prices?

Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.

How often are prices updated?

The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2023 GMC Sierra page is regenerated from it when it is requested. The figures on this page are from 2026-10-13.

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Prices updated 2026-10-13. Data covers active dealer listings across the USA.