2018 Buick Enclave Depreciation
A 8-year-old 2018 Buick Enclave has lost about 66.2% of its roughly $48,015 original value. In the 2026 source cohort, it typically listed for around $16,550, with most listings between $13,461 and $20,213. Listed examples average 103,142 miles.

2018 Buick Enclave Price by Mileage
What buyers actually pay at different odometer readings.
How Mileage Affects 2018 Buick Enclave Price
Each dot is a real listing — price plotted against odometer reading.
| Mileage | Median price | Listings |
|---|---|---|
| 30k–50k mi | $22,458 | 5 |
| 50k–75k mi | $20,515 | 26 |
| 75k–100k mi | $18,296 | 66 |
| 100k–130k mi | $15,423 | 65 |
| Over 130k mi | $12,468 | 35 |
What's a Good Price for a 2018 Buick Enclave?
Great deal
Under $14,793
Typical
$14,793–$19,226
Overpriced
Above $19,226
Based on the middle 50% of listings — always adjust for mileage and condition.
Price Spread
Range across 200 listings.
Half of all listings fall between $14,793 and $19,226, with a median of $16,550.
2018 Buick Enclave Efficiency & Specs
EPA fuel-economy and powertrain data.
Combined
21 MPG
City / Hwy
18 / 26
Fuel / year
$3,050
Fuel
Regular
Engine
3.6L 6-cyl
EPA class
Standard Sport Utility Vehicle 4WD
Depreciation by Trim
See how each 2018 Buick Enclave trim holds its value.
How the 2018 Buick Enclave Compares to Other Years
At 66.2% depreciation, the 2018 Buick Enclave sits among its neighbors on the depreciation curve. The one-year-newer 2019 has lost 60.4% (around $18,054), so stepping up a model year costs roughly $1,504 more. The older 2017 sits at 42.0% (around $25,290). Buying one model year newer or older is one of the easiest ways to trade purchase price against age and remaining warranty.
Safety Ratings
NHTSA crash test ratings for the 2018 Buick Enclave.
Known Issues & Complaints
64 NHTSA complaints, 0 recalls reported.
POWER TRAIN
15 complaintsAfter two transmission flushes and being told by a Buick dealership's service technicians that nothing is wrong with the vechile's transmission, it has now failed completely at ~90k miles.
SERVICE BRAKES
15 complaintsSeveral times I have been stopped at a red light, and my parking break will come on without me engaging it. I was almost hit by other vehicles the last time my vehicle did this. People were blasting their horns and speeding around me becaus
ELECTRICAL SYSTEM
7 complaintsThe contact owns a 2018 Buick Enclave. The contact stated that while driving at various speeds, the vehicle shut off and failed to restart. The vehicle was towed to the dealer, where the alternator was replaced 4 times before the dealer dia
UNKNOWN OR OTHER
6 complaints2018 Enclave w/106k on the odometer and the catalytic convertor cracked. $2200 repair.
ENGINE
6 complaintsExhaust leak from broken front exhaust pipe. This has been a known defect in this make/model however the year of my vehicle was not included in the extended repair window and should have been. The exhaust leak was identified by the dealersh
SUSPENSION
2 complaintsI am submitting this letter to formally report two ongoing issues with my 2018 Buick Enclave. First, I have experienced persistent problems with the emissions purge valve. My vehicle has repeatedly triggered diagnostic trouble code P0496, i
Top Issues
- POWER TRAIN
- SERVICE BRAKES
- ELECTRICAL SYSTEM
- UNKNOWN OR OTHER
- ENGINE
Frequently Asked Questions
How much is a 2018 Buick Enclave worth?
A 2018 Buick Enclave is typically worth around $16,550, with most listings falling between $13,461 and $20,213. The single biggest swing factor is mileage — listed examples average about 103,142 miles, and each additional 10,000 miles shaves a few percent off the price. Condition, accident history, trim, and how many owners a car has had move the number from there. Treat the median as a fair starting point and adjust up for a clean, low-mileage, one-owner car or down for higher mileage and any reported damage.
How much has the 2018 Buick Enclave depreciated?
The 2018 Buick Enclave has lost about 66.2% of its original $48,015 base MSRP — roughly $31,786 in value, after adjusting listing prices to typical mileage for the age. Most of a car's lifetime depreciation happens in its earliest years, so a vehicle of this age has usually weathered the steepest part of the curve already. That's what makes a well-kept example at this age an efficient buy: you let the original owner absorb the fastest depreciation, then enjoy a much slower decline from here.
How many miles does a used 2018 Enclave have?
Listed 2018 Enclaves average about 103,142 miles, with most between 74,230 and 131,999. As a rule of thumb, "average" mileage for any car is roughly 12,000 miles per year of age, so compare a specific listing against that benchmark. A below-average odometer commands a premium and an above-average one a discount, but a higher-mileage car with complete service records and one owner can be a better buy than a low-mileage car with gaps in its history. Consistent maintenance does more for a car's remaining lifespan than a low number on the odometer alone.
What is a good price for a 2018 Buick Enclave?
For a 2018 Buick Enclave, anything under $14,793 is a strong deal, $14,793 to $19,226 is the typical range where most cars trade, and above $19,226 is on the expensive side — those higher prices usually buy lower mileage, a certified warranty, or a premium trim. Always weigh the asking price against the car's specific mileage and condition rather than the sticker alone: a slightly higher price for a clean, one-owner, accident-free example is often money well spent. And treat a listing priced well below the range as a prompt to dig deeper — unusually cheap cars almost always have a reason, whether it's high mileage, accident history, or a branded title.
Methodology
Figures for the 2018 Buick Enclave are computed from 200 real used-car listings. Each asking price is normalized to a standard 12,000 miles per year for the car's age, adjusted by a 5% asking-to-sale estimate, and compared against the original base MSRP for that VIN's trim. Full methodology. Updated August 2026.