What are the most common Buick LaCrosse problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2009 Buick LaCrosse has 4 documented issues. The most frequently reported are: Headlamp Driver Module Overheats and Kills Headlights (Recall 15V519000), Ignition Switch Can Rotate Out of Run With a Loaded Key Ring (Recall 14V355000), 3.8L V6 Lower Intake Manifold Gasket / Plastic Coolant Elbow Leaks. Of these, 3 are rated critical and should be addressed promptly.
Is the Buick LaCrosse reliable?
The 2009 Buick LaCrosse has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 3 issues are rated critical: Headlamp Driver Module Overheats and Kills Headlights (Recall 15V519000) and Ignition Switch Can Rotate Out of Run With a Loaded Key Ring (Recall 14V355000) and 3.8L V6 Lower Intake Manifold Gasket / Plastic Coolant Elbow Leaks. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Buick LaCrosse problems?
Repair costs for known Buick LaCrosse issues range from $150 to $900, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2005-2009 Buick LaCrosse Headlamp Driver Module Overheats and Kills Headlights (Recall 15V519000)?
GM recalled the Buick LaCrosse under NHTSA campaign 15V519000 (GM number 14291) because the headlamp driver module (HDM) can overheat and fail. When the module fails, the headlamps and the daytime running lights stop illuminating. NHTSA notes that headlamps which do not come on r… Severity: high.
What is the 2005-2009 Buick LaCrosse Ignition Switch Can Rotate Out of Run With a Loaded Key Ring (Recall 14V355000)?
NHTSA recall 14V355000 covers 2005-2009 Buick LaCrosse sedans. On these cars the weight hanging on the key ring, combined with road conditions or some other jarring event, can move the ignition switch out of the run position while you are driving. GM's own guidance to LaCrosse ow… Severity: high.
What is the 2005-2009 Buick LaCrosse 3.8L V6 Lower Intake Manifold Gasket / Plastic Coolant Elbow Leaks?
First-generation LaCrosse models with the GM 3.8L (Series III) V6 commonly develop lower intake manifold gasket leaks, and the plastic coolant elbow at the water pump deforms from heat and leaks. Coolant loss can lead to overheating; in severe upper-intake cases coolant can enter… Repairs typically run $300-$900. Severity: high.
What is the 2008-2014 Buick LaCrosse HVAC Blower Motor and Climate Control Module Failures?
Across LaCrosse generations the HVAC blower motor (and on some 3800-era cars the blower resistor) commonly fails as the car ages, causing intermittent or no airflow. Additionally, a software fault in the electronic climate control (ECC) module can disable the ability to adjust HV… Repairs typically run $150-$500. Severity: medium.
