2014 Buick LaCrosse Problems: 4 Known Issues
2014 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2014 Buick LaCrosse has 4 documented known issues, with 2 rated critical. The most serious are LaCrosse 3.6L LLT/LFX Timing Chain Stretch ($2,000-$4,500 repair) and eAssist 12V Battery Drain and "Service Battery Charging System" Warnings ($500-$2,500 repair). Across all issues with published estimates, repair costs range from $150 to $4,500. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls13 recalls
AIR BAGS:FRONTAL
General Motors LLC (GM) is recalling certain model year 2014-2016 Buick Lacrosse and Chevrolet Spark EV, Caprice PPV and SS vehicles, 2014-2017 Buick Encore and Chevrolet Corvette, Silverado 1500 and GMC Sierra 1500 vehicles, 2015-2016 Cadillac Escalade and Escalade ESV, Chevrolet Tahoe, Trax, Suburban and Silverado 2500 and 3500 and GMC Yukon and Yukon XL vehicles, and 2015-2017 GMC Sierra HD 2500 and 3500 vehicles. While being previously remedied for recall 16V-651, the affected vehicles may not have received the complete software update necessary to remedy the recall condition. Without the update, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
AIR BAGS:FRONTAL
General Motors LLC (GM) is recalling certain model year 2015-2017 Chevrolet Silverado 2500 HD, 3500 HD, Tahoe, Suburban, GMC Sierra 2500 HD and 3500 HD, GMC Yukon, GMC Yukon XL, Cadillac Escalade and Cadillac Escalade ESV vehicles and 2014-2017 Chevrolet Corvette, Silverado 1500, Trax, Caprice Police Pursuit Vehicle, GMC Sierra 1500, Buick Encore, and 2014-2016 Buick Lacrosse, Chevrolet Spark EV and SS vehicles. In the affected vehicles, certain driving conditions may cause the air bag sensing and diagnostic module (SDM) software to activate a diagnostic test. During this test, deployment of the frontal air bags and the seat belt pretensioners would not occur in the event of a crash.
AIR BAGS:SIDE/WINDOW
General Motors LLC (GM) is recalling certain model year 2015 Buick LaCrosse, Cadillac XTS, Chevrolet Camaro, Equinox, Malibu, and GMC Terrain vehicles. The affected vehicles have front seat-mounted side impact air bags whose inflator may rupture upon its deployment.
POWER TRAIN:AUTOMATIC TRANSMISSION
General Motors (GM) is recalling certain model year 2013 Buick LaCrosse vehicles, manufactured between April 25, 2012, through March 6, 2013, and model year 2013 Cadillac SRX vehicles, manufactured between May 29, 2012, through February 18, 2013 for failing to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect." A software problem may cause the transmission to inadvertently shift to Sport mode removing any transmission-related engine braking effect.
ELECTRICAL SYSTEM
General Motors (GM) is recalling certain model year 2012 and 2013 Buick LaCrosse and Regal, and model year 2013 Chevrolet Malibu Eco vehicles equipped with eAssist. These vehicles may have a condition in which the Generator Control Module (GCM) may not function properly. This could cause a gradual loss of battery charge and the illumination of the malfunction indicator light.
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Frequently Asked Questions
What are the most common Buick LaCrosse problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2014 Buick LaCrosse has 4 documented issues. Documented issues include: LaCrosse 3.6L LLT/LFX Timing Chain Stretch, eAssist 12V Battery Drain and "Service Battery Charging System" Warnings, Driver Door Wiring Splice Corrosion (Recall 14V317000). Of these, 2 are rated critical and should be addressed promptly.
Is the Buick LaCrosse reliable?
The 2014 Buick LaCrosse has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: LaCrosse 3.6L LLT/LFX Timing Chain Stretch and eAssist 12V Battery Drain and "Service Battery Charging System" Warnings. 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 $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, LaCrosse 3.6L LLT/LFX Timing Chain Stretch, typically costs $2,000-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2010-2016 Buick LaCrosse LaCrosse 3.6L LLT/LFX Timing Chain Stretch?
The GM 3.6L LLT (built 2007-2011) and LFX (built 2012 on) "High Feature" V6 in LaCrosse, Enclave, Acadia, Traverse, CTS, Cadillac SRX, and many others suffers timing chain stretch typically between 80,000-150,000 miles. Root cause is oil-related — original OLM intervals (up to 12… Repairs typically run $2,000-$4,500. Severity: high.
What is the 2012-2016 Buick LaCrosse eAssist 12V Battery Drain and "Service Battery Charging System" Warnings?
LaCrosse models equipped with the eAssist mild-hybrid system suffer recurring charging and 12V battery problems tied to the Generator Control Module and the hybrid battery energy control module. Owners report parasitic battery drain, no-start conditions, and "Service Battery Char… Repairs typically run $500-$2,500. Severity: high.
What is the 2014 Buick LaCrosse Driver Door Wiring Splice Corrosion (Recall 14V317000)?
On certain 2014 LaCrosse vehicles, a wiring splice in the driver's door can corrode and break. This eliminates the audible key-in-ignition / door-open chime (increasing rollaway risk) and can leave the Retained Accessory Power module active for about ten minutes, allowing the pow… Severity: medium.
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, on certain 2011 LaCrosse models a software fault in the electronic climate control (ECC) module can… Repairs typically run $150-$500. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.