Is the 2007 Buick LaCrosse reliable?

It can be a reliable midsize sedan when maintained, with the 3.8L V6 generally considered a strong long-term engine. Reliability depends heavily on service history, cooling system condition, and transmission health.

What are the most common 2007 Buick LaCrosse problems?

Frequently reported issues include coolant leaks (often tied to intake manifold gasket concerns on the 3.8L), transmission shifting complaints in higher-mileage cars, electrical accessory problems like window regulators, and normal aging suspension/steering wear.

Are maintenance costs high for a 2007 Buick LaCrosse?

Costs are typically moderate for the class since parts are widely available and most repairs are familiar to independent shops. Bigger expenses usually come from deferred maintenance, transmission repairs, or overheating-related engine damage.

What are the best years to buy for the Buick LaCrosse?

Many shoppers look for later first-generation examples or well-maintained cars with documented service. The “best” year is usually the one with the cleanest maintenance records, a healthy transmission, and no cooling system issues—regardless of model year.

What should I check before buying a used 2007 Buick LaCrosse?

Confirm there are no coolant leaks or overheating signs, verify smooth transmission shifts, test all windows/locks and dash functions, and listen for front-end noises on rough roads. A pre-purchase inspection and a scan for stored codes are strongly recommended. For deeper details, get a complete owner’s guide with full specs, trim information, and the recommended maintenance schedules to keep a 2007 Buick LaCrosse running its best.

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

2007 Buick LaCrosse Reliability ReportB grade · low risk · system-by-system breakdown

82/ 100

KeepScore

LOW RISK

Grade: B

A reliable, comfortable, and budget-friendly sedan, provided you address its well-known but manageable weaknesses.

Full system breakdown + what I would do

Quick Facts · 2007 Buick LaCrosse

The system most likely to surface first: upper & lower intake manifold gaskets (major severity).
Has 4 NHTSA recalls on record — the most notable involves the exterior lighting:headlights.
Scores 6 points below the strongest nearby year — the 2008 Buick LaCrosse earns a 88.

Is the 2007 Buick LaCrosse Worth Buying?

The 2007 Buick LaCrosse, especially with the venerable 3.8L V6, stands as a surprisingly robust and comfortable used car value. While it's not without some common GM electrical quirks and maintenance needs, diligent upkeep will reward owners with a dependable and smooth ride, making it a solid choice for those seeking comfort over cutting-edge tech.

Biggest Strengths

Durable 3.8L V6 engine (Series III)
Proven 4-speed automatic transmission
Comfortable, quiet ride

What Tends to Fail First on the 2007 Buick LaCrosse

The systems that break first on the 2007 Buick LaCrosse. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Upper & Lower Intake Manifold Gasketsmajor

Electrical System & Body Control Module (BCM)moderate

Power Steering System Leaksmoderate

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

2007 Buick LaCrosse Recall History

4 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

EXTERIOR LIGHTING:HEADLIGHTS

General Motors LLC (GM) is recalling certain model year 2007 Pontiac Grand Prix, 2006-2009 Buick LaCrosse, 2006-2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, 2006 Chevrolet Trailblazer EXT, GMC Envoy XL, 2006-2008 Isuzu Ascender, and Saab 9-7x vehicles. In the affected vehicles, the headlamp driver module (HDM) may overheat and fail, causing the headlamps and daytime running lights to not illuminate.

ELECTRICAL SYSTEM:IGNITION

This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.

What breaks on the 2007 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.

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

2007 Buick LaCrosse Alternatives

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Frequently Asked Questions

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