The 2007 Buick Lucerne, a vehicle that once epitomized comfort and luxury in the North American automotive market, now finds itself under the microscope due to a series of complaints and mechanical issues brought forward by consumers and experts alike.

With a decade and a half of service under its belt, this model's longevity is being questioned as owners report a variety of problems ranging from transmission failures to engine troubles that could potentially affect both the vehicle's performance and the safety of its occupants.

These recurring issues, which encompass 13 major categories, not only impact the driving experience but also pose significant questions about the durability and reliability of this once-celebrated sedan.

As we explore the specific nature of these challenges, we aim to uncover patterns, possible solutions, and preventative measures that can assist current and future owners in navigating the complexities of maintaining their 2007 Buick Lucerne.

Join us as we assess the extent of these concerns, and consider the broader implications for the automotive industry and consumer expectations.

Transmission Failure Symptoms

signs of transmission problems

Transmission failure in the Buick Lucerne typically manifests as slipping gears, delayed shifting, and a total loss of power transmission capabilities. Owners may experience the vehicle struggling to accelerate, or an uncharacteristic rise in engine RPMs without an increase in speed – a clear indication of slipping. This malfunction can lead to erratic or unpredictable vehicle behavior, posing a significant safety risk while driving.

Delayed gear engagement is another common symptom, where the driver might notice a pause before the transmission actually shifts after a gear is selected. This can cause a jarring effect when the gear does engage. In severe cases, the transmission may fail to engage any gear, resulting in the inability to drive the vehicle.

Prompt diagnosis and repair are essential to ensure safety and prevent further damage to the vehicle's powertrain.

Common Engine Faults

identifying common engine problems

Engine misfires, characterized by sporadic stuttering or loss of power, stand as a prevalent issue among Buick Lucerne owners. These misfires often lead to a noticeable decrease in driving performance and fuel efficiency. A common cause of engine misfires in the Lucerne can be attributed to worn spark plugs or ignition coil failures. Additionally, faulty fuel injectors and clogged air filters may also disrupt the air-fuel mixture, compromising engine function.

Owners have reported instances of stalling and rough idling, which not only pose a risk during operation but can signal deeper problems within the engine bay. Notably, the illuminated check engine light serves as a critical indicator that warrants immediate attention to prevent potential engine damage and to maintain the vehicle's reliability and safety.

Electrical System Glitches

technical issues with electricity

When exploring the myriad of complaints from Buick Lucerne owners, electrical system glitches frequently emerge as a significant concern. These electrical troubles range from faulty ignition switches, which can prevent the engine from starting, to persistent battery drainage issues that leave drivers stranded.

Additionally, malfunctioning power windows, often a result of defective regulators or switches, contribute to the inconvenience. Alternator failures, another common gripe, lead to inadequate charging of the battery and can cause a cascade of electrical failures.

Wiring harness problems further complicate the electrical stability of the vehicle, potentially leading to intermittent or complete loss of functionality in various electrical components. These glitches not only affect convenience but can also pose significant safety risks to occupants.

Heating and Cooling Woes

temperature control struggles

Moving beyond the electrical system, the Buick Lucerne also exhibits significant heating and cooling system issues, impacting both comfort and engine performance.

Owners frequently report a lack of heat in the cabin, particularly during cold weather, which is often traced back to heater core leaks or malfunctioning thermostats.

In warmer climates, the failure of the AC compressor poses not just a comfort issue but can also affect the vehicle's resale value.

Blower motor problems lead to inadequate circulation of the heated or cooled air inside the vehicle.

Additionally, an unpleasant odor from the HVAC system can be indicative of mold or mildew, which are health concerns and compromise the interior environment.

Addressing these heating and cooling problems is essential for maintaining the Lucerne's functionality.

Steering and Suspension Faults

vehicle issues steering and suspension

Commonly reported by Buick Lucerne owners, strut and shock absorber failure significantly compromises ride quality and vehicle handling. Symptoms include excessive bouncing, uneven tire wear, and a tendency for the car to nose-dive during braking. These issues not only affect comfort but also pose safety risks, as the vehicle's stability is crucial during emergency maneuvers.

Additionally, the Lucerne has been known to experience power steering fluid leaks, which can lead to increased steering effort, particularly at lower speeds. Tie rod end wear is another concern, potentially causing steering misalignment and irregular tire wear. Owners may also report steering wheel vibrations, often indicative of imbalanced wheels or worn suspension components.

Regular inspection and maintenance of steering and suspension systems are imperative to ensure the longevity and safety of the vehicle.

Fuel System Deficiencies

Fuel system deficiencies in the Buick Lucerne can manifest as fuel pump failures, leading to engine stalling or an inability to start the vehicle. Owners may experience intermittent or complete loss of power while driving, posing significant safety risks.

Additionally, fuel gauge inaccuracies have been reported, which can result in drivers being unaware of the actual amount of fuel in the tank, potentially leading to unexpected vehicle shutdowns due to fuel depletion.

Clogged fuel injectors are another common issue, contributing to poor engine performance, reduced fuel efficiency, and increased emissions. Problems with the gas cap seal may trigger the check engine light, while fuel tank leaks constitute both a safety hazard and an environmental concern.

Addressing these fuel system problems promptly is crucial for maintaining the vehicle's reliability and safety.

Braking System Complaints

numerous braking system complaints

Owners of the Buick Lucerne have reported multiple problems with the vehicle's braking system. These issues range from malfunctions in the ABS system to premature brake wear and fluid leaks. These problems can compromise the braking performance of the vehicle and may pose safety risks due to increased stopping distances.

One common issue that owners have experienced is brake system malfunctions, which often present as brake pedal pulsation or a spongy feeling when the pedal is depressed. These symptoms indicate potential problems with the brake pads or rotors.

In addition to these issues, some owners have reported faulty brake master cylinders, which are critical for the proper function of the braking system.

To ensure the safety and reliability of the Buick Lucerne on the road, it is crucial to promptly diagnose and repair any braking system complaints.

Drivetrain Component Issues

While addressing the braking system concerns is crucial for safety, it is equally important to examine the drivetrain issues that affect the Buick Lucerne's performance and reliability.

Drivetrain components, such as the drive belt and differential, are essential for smooth operation. Drive belt failures can lead to a sudden loss of accessory drive functions, including the power steering and alternator, while differential fluid leaks may result in gear wear and eventual failure if not addressed promptly.

Owners of the Buick Lucerne have reported such problems, which can lead to costly repairs and potential safety risks on the road. It is vital for owners to monitor these components and service their vehicles according to the manufacturer's recommendations to prevent drivetrain malfunctions.

Exterior Accessory Malfunctions

Transitioning from the internal complexities of drivetrain issues, the Buick Lucerne also faces challenges with its exterior accessories. These challenges include problems with power mirrors, headlight assemblies, and windshield wiper motors.

Owners have reported instances where power mirrors fail to adjust or respond to controls, posing a safety risk by impairing driver visibility.

Headlight assemblies have been prone to moisture accumulation and electrical faults, leading to reduced road illumination and potential traffic hazards.

Furthermore, windshield wiper motor failures compromise visibility during inclement weather, which can significantly increase the risk of accidents.

These malfunctions not only impact the vehicle's functionality but also its safety, necessitating prompt attention and repair to ensure the well-being of occupants and the reliability of the vehicle.

Interior Accessory Failures

problems with interior car parts

Shifting focus to the interior, the Buick Lucerne's cabin experiences its own set of challenges, notably with interior accessory failures that range from malfunctioning power seats to issues with the HVAC control module.

Owners have reported situations where the power seats either fail to adjust or do so erratically, leading to inconvenience and potential safety concerns. The HVAC control module, crucial for regulating cabin temperature, has been a source of frustration due to malfunctions that affect the heating and cooling system's performance.

Additionally, there have been instances of power window switch problems and instrument cluster malfunctions, which disrupt the driving experience and may impact the vehicle's functionality.

These interior accessory issues are significant, as they directly affect driver comfort and vehicle operability.

Safety Feature Concerns

A significant number of Buick Lucerne owners have reported malfunctions within the vehicle's safety features. These include airbag system failures and unreliable seat belt pretensioners. These critical components are designed to provide essential protection during accidents, but defects can significantly compromise occupant safety.

Issues with the tire pressure monitoring system have also been noted. This can potentially lead to undetected low tire pressure and increased risk of blowouts.

Furthermore, problems with backup cameras and blind-spot detection systems have raised concerns. These advanced technologies are relied upon to prevent collisions.

Addressing these safety feature concerns is paramount. They directly impact the vehicle's ability to protect its passengers in various driving conditions and scenarios.

Body and Paint Complaints

customer dissatisfaction with repairs

While addressing safety concerns remains crucial, it is also important to note that the Buick Lucerne has been subject to various body and paint complaints that affect the vehicle's aesthetics and integrity.

Owners have reported instances of rust development, particularly in regions with harsh weather conditions, which can compromise the car's structural soundness over time.

Additionally, there have been grievances regarding paint peeling or chipping, diminishing the Lucerne's appearance and resale value.

Issues such as door seal leaks and sunroof drainage problems have also been flagged, potentially leading to interior water damage.

Exterior trim damage not only impacts the aesthetics but may also result in additional repair costs.

Collectively, these body and paint issues can detract from the overall owner experience and may signify underlying quality control challenges.

Miscellaneous Vehicle Issues

Beyond the aforementioned categories, the Buick Lucerne has been plagued by an assortment of miscellaneous issues that range from remote keyless entry failures to persistent wind noise at high speeds.

Owners have reported that the keyless entry system occasionally fails to recognize the remote, leaving them unable to unlock the doors or start the vehicle without a manual key. This inconvenience can be particularly troubling when quick vehicle access is necessary.

Moreover, there have been complaints about excessive wind noise infiltrating the cabin while driving, which not only affects the comfort of the occupants but also hinders the ability to communicate or enjoy the audio system.

These miscellaneous issues, although not as critical as powertrain or safety concerns, contribute to the overall reliability perception of the Buick Lucerne.


  • John Lin

    John Lin, the co-founder of JB Motor Works, is a man of many talents. A seasoned mechanic, a savvy entrepreneur, and a car enthusiast at heart, John has transformed his passion for vehicles into a successful business.