Is the 2018 Buick Enclave reliable?

The 2018 Enclave is generally considered average in reliability for a three-row SUV, with many owners having solid experiences when maintenance is kept up, but some report transmission drivability concerns and occasional electrical issues.

What are the most common 2018 Buick Enclave problems?

Commonly reported issues include harsh or hesitant shifting from the 9-speed automatic, infotainment and connectivity glitches, power liftgate sensor/latch problems, and inconsistent AC performance.

Are maintenance costs high for a 2018 Buick Enclave?

Costs are typically moderate for the class: routine items like oil changes, brakes, tires, and fluid services are comparable to other midsize SUVs, but repairs involving electronics, liftgate components, or transmission diagnosis can raise costs.

What are the best years to buy for a Buick Enclave?

Many shoppers prefer later second-generation models after early redesign bugs are addressed, so 2019–2021 are often cross-shopped alongside 2018; however, a well-maintained 2018 with documented service and completed updates can still be a strong value.

What should I check before buying a used 2018 Buick Enclave?

Test-drive at low speeds and on the highway to check for shuddering or harsh shifts, verify all infotainment functions and the backup camera, operate the power liftgate repeatedly, confirm AC blows cold at idle, and review service records plus any completed recalls or software updates. For a deeper dive, get a complete owner’s guide with full specs, trim details, and the recommended maintenance schedule to keep a 2018 Buick Enclave running at its best.

HomeVehicles

Vehicles Compare Blog Get Report

Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2018 Buick Enclave Reliability ReportCommon Problems, Repair Costs & Expert Verdict

87/ 100

KeepScore

LOW RISK

Grade: A-

A premium-feeling, reliable family hauler that excels in comfort and space, with only minor tech hiccups.

Full system breakdown + what I would do

Quick Facts · 2018 Buick Enclave

No active NHTSA safety recalls on record — a clean recall slate for the 2018 model year.
Outscores the 2016 Buick Enclave by 12 points — one of the stronger nearby years to consider.
The system most likely to surface first: infotainment & electrical systems (moderate severity).

Should You Buy the 2018 Buick Enclave?

The 2018 Buick Enclave is a remarkably solid choice for families seeking a comfortable, spacious, and generally dependable three-row SUV. Its proven V6 engine and new 9-speed automatic transmission offer a confident driving experience, with only minor electrical annoyances and suspension wear points to keep an eye on. You can buy this vehicle with a high degree of confidence, provided a thorough pre-purchase inspection is completed.

Biggest Strengths

Robust 3.6L V6 engine (LGX)
Smooth and comfortable ride quality
Spacious and quiet interior for long trips

Top Risk Areas

The systems that break first on the 2018 Buick Enclave. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Infotainment & Electrical Systemsmoderate

Brake System Wearmoderate

Suspension Componentsmoderate

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

No active NHTSA safety recalls on file for the 2018 Buick Enclave. Always verify with your VIN atnhtsa.gov.

What breaks on the 2018 Buick Enclave?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

OwnerKeep Passport · $499 · one-time

Just bought a 2018 Buick Enclave? Keep it that way.

Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.

Buick Enclave by Year

Compare KeepScores across nearby years of the Buick Enclave. Click any year for its full report.

All Buick Enclave years ranked →Buick Enclave years to avoid →Buick Enclave common problems →

If You're Considering This, Also Look At

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2018 Buick Enclave

Parts and accessories matched to your 2018 Buick Enclave

As an Amazon Associate I earn from qualifying purchases.

Frequently Asked Questions

Full Report