The best Buick LaCrosse model years are 2017 through 2019. These third-generation models feature refined powertrains and significantly fewer owner complaints.
Buyers should strictly avoid the 2005 through 2007 and 2010 model years. These specific years suffer from severe electrical faults, timing chain failures, and expensive transmission defects.
Rankings are comparative, meaning no used vehicle is entirely flawless. Proper maintenance history and a thorough pre-purchase inspection remain essential for any older luxury sedan.
Reliability also varies heavily by engine choice. The four-cylinder and V6 options exhibit very different long-term durability patterns, making configuration selection just as important as the model year.
Quick Navigation
Best and Worst Buick LaCrosse Years at a Glance
| Model Year | Verdict | Main Reason | Buyer Guidance |
|---|---|---|---|
| 2017-2019 | Best Choice | Refined third generation, few complaints | Prioritize V6 models with service records |
| 2014-2016 | Good Choice | Mature second generation, solid V6 | Verify transmission fluid maintenance |
| 2011-2013 | Good With Inspection | Improved but lingering early issues | Check timing chain and eAssist battery |
| 2008-2009 | Approach Carefully | Aging electronics, suspension recalls | Inspect steering rack and wiring harness |
| 2010 | Avoid | First-year redesign, transmission wave plate | Skip entirely due to high failure rates |
| 2005-2007 | Avoid | Severe electrical shorts, engine gaskets | Skip due to safety and repair costs |
Key Takeaways
- The 2017-2019 models are the most dependable choices available.
- Avoid 2010 and 2005-2007 due to major powertrain and electrical defects.
- The 3.6L V6 is generally preferred over the 2.4L four-cylinder.
- First-year redesigns like 2010 often carry the highest repair risks.
- Always verify open recalls, especially for rear suspension and airbags.
- Recent low complaint totals reflect the vehicle’s discontinuation in 2019.
- An independent mechanic should always inspect older luxury sedans.
How We Evaluated the Buick LaCrosse Model Years
Our analysis reviews official NHTSA recalls, manufacturer service campaigns, and consumer complaint databases. We also track powertrain revisions across different generations.
High complaint volumes do not automatically confirm a defect. We evaluate the severity, repair cost, and safety implications of each reported issue.
A recall does not inherently make a vehicle unreliable if the remedy was performed. However, recurring engine or transmission failures heavily impact our verdicts.
Because Buick discontinued the LaCrosse in North America after 2019, newer years simply have less ownership history. Best means comparatively stronger within this specific lineup.
Best Buick LaCrosse Years
2017-2019: Best Choice
The third-generation LaCrosse represents the peak of this nameplate. Buick completely redesigned the sedan for 2017, introducing the reliable LGX 3.6L V6 and the 2.5L four-cylinder.
These final model years benefit from mature engineering and advanced safety features. Owner complaints are remarkably low compared to earlier generations.
The eight-speed and nine-speed automatic transmissions perform smoothly when properly maintained. Finding a well-kept 2018 or 2019 model offers excellent luxury value.
2014-2016: Good Choice
The late second-generation models are solid alternatives if you cannot find a newer version. By 2014, GM had addressed most early timing chain and transmission concerns.
The 3.6L LFX V6 is a robust engine that delivers smooth power. The interior remains quiet and comfortable, which is a hallmark of the brand.
Buyers should still verify that previous owners adhered to strict oil change intervals. This is critical for preserving the timing chain guides on these V6 engines.
Best Year by Buyer Type
Best Overall: 2018
The 2018 model year hits the sweet spot. It features the updated LGX V6, modern infotainment, and advanced driver aids without the premium of a brand-new car.
Best Budget Option: 2015
A 2015 LaCrosse offers significant depreciation savings. The second-generation platform is fully sorted, provided you avoid the base four-cylinder engine and opt for the V6.
Years to Approach Carefully
2011-2013: Good With Inspection
These early second-generation years show improvement over the 2010 launch model. GM revised the transmission wave plates and updated engine components during this period.
However, some models equipped with the eAssist mild-hybrid system face expensive battery replacement costs. The 2.4L Ecotec engine is also prone to excessive oil consumption.
Only consider these years if you can verify the timing chain has been inspected. A pre-purchase scan for transmission shudder is also highly recommended.
2008-2009: Approach Carefully
The final years of the first generation are slightly better than the launch models. Many electrical recalls were addressed, and the powertrain options were more stable.
Despite these improvements, these vehicles are now quite old. Aging wiring harnesses, leaking power steering racks, and rear suspension toe-link fractures remain common concerns.
Worst Buick LaCrosse Years
2010: Avoid
The 2010 LaCrosse was the first year of a major redesign. First-year models frequently suffer from early-production defects, and this sedan is no exception.
The six-speed automatic transmission is notorious for 3-5-R wave plate failures. The resulting debris clogs the valve body, leading to complete transmission loss.
Additionally, the 2.4L four-cylinder and early 3.6L V6 engines suffer from severe timing chain stretch. The repair requires extensive engine disassembly and is very costly.
2005-2007: Avoid
The inaugural first-generation models are plagued by dangerous electrical faults. A common wiring harness issue causes the harness to chafe against the steering column.
This short circuit can trigger a loss of power steering, ABS failure, and airbag warning lights while driving. The safety risks alone make these years unacceptable.
Furthermore, the 3.8L V6 engine is known for failing intake manifold gaskets. This allows coolant to mix with the oil, potentially destroying the engine.
Buick LaCrosse Reliability by Generation
First Generation (2005-2009)
Built on the older W-body platform, this generation prioritized comfort over modern engineering. While the ride is smooth, the electrical architecture is highly problematic.
Buyers should look at alternatives like the Buick Lucerne if they prefer this era, though it shares similar aging concerns.
Second Generation (2010-2016)
Moving to the Epsilon II platform brought better handling and a modernized interior. However, the early years suffered from significant powertrain growing pains.
By 2014, the platform matured into a reliable luxury cruiser. It competes closely with the Buick Regal, though the LaCrosse offers more rear-seat space.
Third Generation (2017-2019)
The final generation is widely considered the most dependable. Buick focused on premium materials and refined the powertrain lineup, eliminating the problematic early engines.
Because it was discontinued in North America, these remain the ultimate expression of the LaCrosse before Buick shifted focus to SUVs like the Buick Enclave.
Common Buick LaCrosse Problems
Transmission Wave Plate Failure
Early second-generation models (2010-2012) frequently experience transmission failure. The 3-5-R wave plate can fracture, sending metal shards through the transmission.
This results in harsh shifting, slipping gears, and eventual total failure. Rebuilding or replacing the transmission is an expensive and time-consuming repair.
Timing Chain Stretch
The 3.6L V6 and 2.4L four-cylinder engines are prone to timing chain stretch. This is often exacerbated by extended oil change intervals.
Symptoms include a check engine light, rough idling, and engine misfires. Replacing the chains requires removing the engine cover and significant labor.
Steering Column Wiring Short
First-generation models suffer from a dangerous wiring harness defect. The harness rubs against the steering shaft, wearing through the insulation over time.
This can cause a short circuit that disables the power steering and anti-lock brakes. Dealerships issued recalls to reroute and tape the harness.
Excessive Oil Consumption
The 2.4L Ecotec four-cylinder engine is known for burning oil rapidly. Faulty piston rings allow oil to enter the combustion chamber.
Owners often report needing to add oil between every fuel fill-up. If ignored, this can lead to low oil levels and severe engine damage.
Repair-Cost Overview
| Problem | Commonly Affected Years | Approximate Repair Range | Important Notes |
|---|---|---|---|
| Transmission Rebuild | 2010-2012 | $3,500 – $5,000 | Wave plate failure often requires full replacement |
| Timing Chain Replacement | 2010-2014 | $1,500 – $2,500 | Labor intensive due to engine layout |
| Steering Rack Replacement | 2005-2009 | $800 – $1,200 | Common leak and failure point on older models |
| eAssist Battery | 2012-2016 | $1,500 – $2,500 | Mild hybrid system battery degradation |
Repair costs vary significantly by region, labor rates, and parts availability. Independent mechanics usually offer lower rates than dealerships, but complex hybrid or transmission work may require specialized equipment.
What to Check Before Buying a Used Buick LaCrosse
- Verify the VIN for open NHTSA recalls, especially for rear suspension toe links and airbag inflators.
- Check the service history for strict adherence to oil change intervals to protect the timing chain.
- Test drive the vehicle to ensure the transmission shifts smoothly without shuddering or hesitation.
- Inspect the steering column wiring harness on first-generation models for signs of chafing or electrical tape.
- Scan the vehicle for diagnostic codes, paying close attention to camshaft position sensor faults.
- Check the oil level on the dipstick to ensure the engine is not actively consuming excessive oil.
- Have an independent mechanic perform a pre-purchase inspection to evaluate the suspension and engine mounts.
Related Buying Guides
- Buick Regal best and worst years: A sportier, more compact alternative to the LaCrosse with a similar luxury focus.
- Buick Enclave best and worst years: Ideal for buyers who need three-row family space instead of a traditional sedan.
- Chevrolet Impala best and worst years: Shares underlying architecture with the LaCrosse but offers a different styling and value proposition.
Frequently Asked Questions
What is the most reliable Buick LaCrosse year?
The 2018 model year is widely considered the most reliable. It benefits from the refined third-generation platform and the durable LGX 3.6L V6 engine.
Why should I avoid the 2010 Buick LaCrosse?
The 2010 model was a first-year redesign plagued by severe transmission wave plate failures and premature timing chain stretch on both available engines.
Does the Buick LaCrosse have timing chain problems?
Yes, the 3.6L V6 and 2.4L four-cylinder engines from 2010 to 2014 are prone to timing chain stretch, especially if oil changes were neglected.
Is the Buick LaCrosse expensive to maintain?
Maintenance costs are average for a luxury sedan. However, neglected early models can incur massive repair bills for transmission or timing chain failures.
Did Buick discontinue the LaCrosse?
Yes, Buick discontinued the LaCrosse in North America after the 2019 model year to focus on their expanding lineup of crossover SUVs.
Which engine is best in the LaCrosse?
The 3.6L V6 is the superior choice. It offers smooth power and avoids the excessive oil consumption issues that plague the 2.4L four-cylinder.
Choosing the Right Buick LaCrosse Model Year
The best Buick LaCrosse model years are 2017 through 2019. These final third-generation sedans offer excellent refinement, modern safety features, and strong reliability.
Buyers on a tighter budget can confidently look at the 2014 through 2016 models. These late second-generation examples are well-sorted, provided you choose the V6 engine.
Strictly avoid the 2005 through 2007 and 2010 model years. The electrical hazards and transmission defects make them poor investments for used car shoppers.
Always verify the vehicle identification number for open recalls. Finally, hire an independent mechanic to perform a thorough inspection before signing any paperwork.
