2018 Buick LaCrosse Reliability ReportA- grade · low risk · system-by-system breakdown
Quick Facts · 2018 Buick LaCrosse
- The system most likely to surface first: infotainment system (minor severity).
- Has 3 NHTSA recalls on record — the most notable involves the power train:automatic transmission.
- Scores roughly in line with adjacent Buick LaCrosse years — consistency that often signals a stable platform generation.
Is the 2018 Buick LaCrosse Worth Buying?
The 2018 Buick LaCrosse stands out as a remarkably robust and comfortable full-size sedan, representing a safe bet for buyers prioritizing refinement and a quiet ride. While no vehicle is flawless, this generation of LaCrosse offers a reliably smooth ownership experience, provided you're mindful of its minor electrical and HVAC quirks. This is a car you can buy with genuine confidence, knowing major mechanical issues are generally rare.
The 2018 Buick LaCrosse is an excellent choice for anyone seeking a comfortable, quiet, and surprisingly reliable full-size sedan on the used market. Its strong mechanicals, particularly the V6 powertrain, offer peace of mind, while its minor tech and HVAC issues are generally manageable. This vehicle delivers signi…
Best Model Years
2017-2019 (Final generation, post-facelift)
Years to Avoid
No specific years to avoid within this final generation, but earlier eAssist models (pre-2017) might feel underpowered for some.
Biggest Strengths
- Smooth, quiet ride quality
- Generally strong and reliable V6 engine
- Comfortable and spacious interior
What Tends to Fail First on the 2018 Buick LaCrosse
The systems that tend to fail first on the 2018 Buick LaCrosse, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
The Buick IntelliLink system can experience glitches, freezing, or slow responses. While often resolved with software updates, it can be frustrating, sometimes requiring a dealer reflash or, in rare cases, head unit replacement.
These small motors control air temperature and flow. Failure can lead to inconsistent temperature from vents (e.g., hot air on one side, cold on the other) or complete loss of temperature control. It's a common GM issue.
Due to the car's weight and comfort-tuned suspension, the front lower control arm bushings can wear prematurely, leading to clunking noises over bumps and potentially affecting alignment or tire wear. It's a common wear item.
2018 Buick LaCrosse Mileage Danger Zones
The mileage windows when the 2018 Buick LaCrosse most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the LaCrosse should still feel and drive like new, primarily needing routine maintenance like oil changes and tire rotations. Ensure all software updates for the infotainment system have been applied.
Maintenance Zone
This mileage often triggers more significant service, including spark plugs for the V6 and potentially a transmission fluid service. It's also when you might start hearing the first signs of wear on suspension components.
Elevated Risk Zone
Beyond 90k, the likelihood of wear-and-tear items needing replacement increases. Keep a close eye on suspension noise, HVAC performance, and accessory belts. Proactive maintenance is key to avoid bigger repairs.
High Risk Zone
Entering this mileage, expect to address a range of age and mileage-related components. Carbon buildup in the V6 is a consideration, and major fluid services (differential, cooling) become more critical. Regular inspections are vital.
2018 Buick LaCrosse Ownership Cost Outlook
What it typically costs to keep the 2018 Buick LaCrosse on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$450-700
Moderate Repairs
$500-1,500 occasionally (e.g., HVAC blend door, control arms)
How Long Does the 2018 Buick LaCrosse Last?
Focus on vehicles with detailed service records and consider a pre-purchase inspection for models over 60,000 miles to proactively address typical wear items and ensure the HVAC and infotainment systems are functioning perfectly.
What 2018 Buick LaCrosse Owners Actually Say
What Owners Love
- Exceptional quietness and insulation from road noise
- Very comfortable and compliant ride quality
- Spacious and inviting interior with ample rear legroom
- Strong and smooth V6 engine performance with good highway fuel economy
Common Frustrations
- Infotainment system can be buggy and slow at times
- HVAC blend door failures are a common and annoying issue
- Some interior plastics feel cheaper than expected for a 'premium' sedan
- Driving dynamics are more comfort-focused, lacking sportiness
Who Should Buy the 2018 Buick LaCrosse?
Best For
- Long-distance commuters who value comfort
- Empty nesters seeking a quiet, spacious sedan
- Drivers who prioritize a smooth, composed ride over sporty handling
Not Ideal For
- Performance enthusiasts desiring aggressive handling and acceleration
- Buyers who prioritize cutting-edge technology and seamless infotainment
How the 2018 Buick LaCrosse Compares to Rivals
The LaCrosse often gets overlooked, but it delivers an impressive package of comfort, quietness, and a solid V6 engine that can genuinely rival more expensive luxury sedans, often at a better value in the used market.
More Reliable Than
- Nissan Maxima (ride comfort, interior space)
- Chrysler 300 (interior quality, refinement)
- Ford Taurus (overall reliability, efficiency)
Comparable To
- Chevrolet Impala (platform twin, similar mechanicals)
- Toyota Avalon (ride quality, comfort, but LaCrosse often has better tech integration)
- Kia Cadenza (value, features, but LaCrosse is quieter)
2018 Buick LaCrosse Recall History
3 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
POWER TRAIN:AUTOMATIC TRANSMISSION
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
What breaks on the 2018 Buick LaCrosse?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Other Buick LaCrosse Years to Consider
Compare KeepScores across nearby years of the Buick LaCrosse. Click any year for its full report.
2018 Buick LaCrosse Alternatives
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2018 Buick LaCrosse
Parts and accessories matched to your 2018 Buick LaCrosse
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Frequently Asked Questions
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