2018 GMC Sierra value
In Good condition, a 2018 GMC Sierra is likely worth $11,800–$18,400 as a trade-in, $12,900–$21,100 in a private sale and $14,550–$22,600 at dealer retail, per Kelley Blue Book (fetched Oct 23, 2026); dealers were typically asking $33,590 (median of 21 cited listings on Carvana, Oct 23, 2026).
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Last updated · every figure links to its source · data: CSV · JSON
What you'd likely get
| If you… | Range |
|---|---|
| Trade-in at a dealer What a dealer typically credits you toward another car. | $11,800–$18,400 |
| Private-party sale Selling yourself to another person. | $12,900–$21,100 |
| Dealer retail (fair purchase) What buyers typically pay a dealer. | $14,550–$22,600 |
Source: Kelley Blue Book, Good condition, fetched Oct 23, 2026, valid through 10/23/2026. Ranges span the styles KBB lists for this year. Edmunds per-model ranges: not available (not collected).
Typical dealer asking price: $33,590 (21 listings, Oct 23, 2026, Carvana). Asking prices are what dealers list, not what they pay you. See the listings
Typical dealer asking price
$33,590
Median of 21 dealer listings. Typical range $27,590–$35,290 (middle 50%) from 21 cited comparable listings observed Oct 23, 2026–Oct 23, 2026.
See all 21 cited comparables
| Price | Trim | Miles | Location | Source |
|---|---|---|---|---|
| $22,990 | 1500 Crew Cab | ≈105,000 | National | Carvana (Oct 23, 2026) |
| $26,990 | 1500 Crew Cab | ≈124,000 | National | Carvana (Oct 23, 2026) |
| $26,990 | 1500 Crew Cab | ≈105,000 | National | Carvana (Oct 23, 2026) |
| $27,590 | - | ≈108,000 | National | Carvana (Oct 23, 2026) |
| $27,590 | 1500 Crew Cab | - | National | Carvana (Oct 23, 2026) |
| $27,590 | 1500 Crew Cab | ≈100,000 | National | Carvana (Oct 23, 2026) |
| $30,990 | 1500 Crew Cab SLT 5 3/4 ft | - | National | Carvana (Oct 23, 2026) |
| $30,990 | 1500 Crew Cab | ≈80,000 | National | Carvana (Oct 23, 2026) |
| $31,990 | 1500 Crew Cab | ≈73,000 | National | Carvana (Oct 23, 2026) |
| $31,990 | 1500 Crew Cab | ≈82,000 | National | Carvana (Oct 23, 2026) |
| $33,590 | 1500 Crew Cab Denali 5 3/4 ft | ≈75,000 | National | Carvana (Oct 23, 2026) |
| $33,590 | - | ≈56,000 | National | Carvana (Oct 23, 2026) |
| $33,990 | 1500 Crew Cab SLT 5 3/4 ft | ≈58,000 | National | Carvana (Oct 23, 2026) |
| $33,990 | 1500 Crew Cab | ≈52,000 | National | Carvana (Oct 23, 2026) |
| $34,590 | 1500 Crew Cab | ≈48,000 | National | Carvana (Oct 23, 2026) |
| $34,990 | 1500 Crew Cab | ≈56,000 | National | Carvana (Oct 23, 2026) |
| $35,590 | 1500 Crew Cab | ≈60,000 | National | Carvana (Oct 23, 2026) |
| $35,990 | - | ≈46,000 | National | Carvana (Oct 23, 2026) |
| $35,990 | - | ≈42,000 | National | Carvana (Oct 23, 2026) |
| $36,990 | 1500 Crew Cab Denali 5 3/4 ft | ≈62,000 | National | Carvana (Oct 23, 2026) |
| $37,590 | 1500 Crew Cab Denali 5 3/4 ft | ≈62,000 | National | Carvana (Oct 23, 2026) |
Method: Median of asking/sold prices of cited comparable 2018 GMC Sierra listings observed in the last 120 days. Minimum 5 comps required. How this works
Safety recalls (0)
NHTSA's recall database returned no recalls for the 2018 GMC Sierra model names we queried.
Recalls apply to specific VINs. Check a VIN-specific recall at NHTSA.
Source: NHTSA Recalls API (SIERRA 1500) · fetched Oct 23, 2026 · HTTP 403 (no records)
Source: NHTSA Recalls API (SIERRA 2500) · fetched Oct 23, 2026 · HTTP 403 (no records)
Source: NHTSA Recalls API (SIERRA 3500) · fetched Oct 23, 2026 · HTTP 403 (no records)
Source: NHTSA Recalls API (SIERRA DENALI) · fetched Oct 23, 2026 · HTTP 403 (no records)
Fuel economy (18–20 MPG combined)
| Version | City/Hwy/Comb | Engine |
|---|---|---|
| Sierra 15 Hybrid 2WD Automatic 8-spd | 18/24/20 | 5.3L 8cyl · Regular · Rear-Wheel Drive |
| Sierra 15 Hybrid 4WD Automatic 8-spd | 16/21/18 | 5.3L 8cyl · Regular · 4-Wheel Drive |
| Sierra C15 2WD Automatic 6-spd | 18/24/20 | 4.3L 6cyl · Gasoline or E85 · Rear-Wheel Drive |
| Sierra C15 2WD Automatic 6-spd | 16/23/19 | 5.3L 8cyl · Regular · Rear-Wheel Drive |
| Sierra C15 2WD Automatic 6-spd | 16/23/19 | 5.3L 8cyl · Gasoline or E85 · Rear-Wheel Drive |
| Sierra C15 2WD Automatic 8-spd | 16/22/18 | 5.3L 8cyl · Regular · Rear-Wheel Drive |
Source: EPA fueleconomy.gov · fetched Oct 23, 2026
NHTSA model names
NHTSA vPIC lists these GMC model names for 2018: Sierra.
Source: NHTSA vPIC · fetched Oct 23, 2026
Kelley Blue Book values
For a 2018 GMC Sierra in Good condition, KBB showed: fair purchase price $14,550–$22,600; private party $12,900–$21,100; trade-in $11,800–$18,400.
KBB values by style (4)
| Style | Fair purchase | Private party | Trade-in |
|---|---|---|---|
| Pickup 2D 8 ft | $14,550 | $12,900 | $11,800 |
| Pickup 2D 6 1/2 ft | $16,550 | $15,450 | $12,950 |
| SLE Pickup 2D 6 1/2 ft | $22,400 | $21,000 | $18,150 |
| SLE Pickup 2D 8 ft | $22,600 | $21,100 | $18,400 |
Source: Kelley Blue Book, fetched Oct 23, 2026 · KBB values valid through 10/23/2026 · page hash 4651a252425b. KBB figures are KBB's estimates, shown separately from our listing-based value.
2018 GMC Sierra specs
| Fuel economy (city / hwy / combined) | 16–18 / 21–24 / 18–20 MPG (EPA) |
|---|---|
| Engine | 5.3L 8-cyl, 4.3L 6-cyl (EPA) |
| Horsepower | 285 - 355 hp (KBB) |
| Transmission | Automatic 8-spd, Automatic 6-spd (EPA) |
| Drivetrain | Rear-Wheel Drive, 4-Wheel Drive (EPA) |
| Fuel type | Regular, Gasoline or E85 (EPA) |
| EPA size class | Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD (EPA) |
| Body styles | Pickup 2D 8 ft, Pickup 2D 6 1/2 ft (KBB) |
| Bed length | 5.75–8 ft (KBB specs, Oct 23, 2026) |
| Truck bed volume | 61–76 cu ft (KBB specs, Oct 23, 2026) |
| Trims / styles | Pickup 2D 8 ft, Pickup 2D 6 1/2 ft, SLE Pickup 2D 6 1/2 ft, SLE Pickup 2D 8 ft (KBB) |
Specs from EPA fueleconomy.gov (fetched Oct 23, 2026) and Kelley Blue Book (fetched Oct 23, 2026); fields marked with another source cite that page and fetch date. Ranges span all versions listed.
Market context
Latest: 182.2 (Sep 2026), -1.5% vs. a year earlier. Peak in the last 10 years: 216.9 (Feb 2022).
Sep 2016 – Sep 2026. National index (1982–84=100); it shows market direction, not the value of a specific car.
Source: FRED CUSR0000SETA02 (BLS) · fetched Oct 23, 2026
Questions
What is a 2018 GMC Sierra worth?
In Good condition, a 2018 GMC Sierra is likely worth $11,800–$18,400 as a trade-in, $12,900–$21,100 in a private sale and $14,550–$22,600 at dealer retail, per Kelley Blue Book (fetched Oct 23, 2026); dealers were typically asking $33,590 (median of 21 cited listings on Carvana, Oct 23, 2026).
What is the trade-in value of a 2018 GMC Sierra?
Kelley Blue Book lists a trade-in range of $11,800–$18,400 for a 2018 GMC Sierra in Good condition (fetched Oct 23, 2026). Private-party: $12,900–$21,100. Dealer retail: $14,550–$22,600.
What do dealers ask for a used 2018 GMC Sierra?
Dealers typically ask about $33,590 for a 2018 GMC Sierra (median asking price; middle 50% $27,590–$35,290), based on 21 cited listings from Carvana observed Oct 23, 2026.
What is the price range for a used 2018 GMC Sierra?
Asking prices in our 21 cited listings ran from $22,990 to $37,590; the middle half sat between $27,590 and $35,290.
How many miles do used 2018 GMC Sierra listings have?
The 19 listings with a mileage shown had 42,000–124,000 miles (median 62,000).
Where does this 2018 GMC Sierra value come from?
From 21 public listings on Carvana, each linked below with its fetch date and a content hash of the page we read. Download them as CSV or JSON.
Does the 2018 GMC Sierra have recalls?
NHTSA returned no recalls for the 2018 GMC Sierra model names we queried (checked Oct 23, 2026).
What MPG does the 2018 GMC Sierra get?
EPA combined fuel economy for 2018 GMC Sierra versions ranges from 18 to 20 MPG, per fueleconomy.gov.
See also: Trade-in value guide · Depreciation calculator · Compare instant cash offers