Some Lexus ES300 owners report experiencing issues where the vehicle turns over but does not start, often due to battery problems, such as a dead or weak battery that fails to provide sufficient power to the starter. Additionally, some owners have encountered starter malfunctions, which can prevent the engine from cranking and may require testing and replacement. Fuel pump issues are also reported, where a faulty fuel pump can inhibit the vehicle from starting, necessitating a functionality check and potential replacement. Many owners find it beneficial to seek professional diagnosis and repair to accurately identify and resolve these issues efficiently.

Some Buick LaCrosse owners report experiencing slow acceleration due to various potential issues, including clogged air filters, dirty mass air flow sensors, and clogged fuel filters. These problems can lead to sluggish starts and delayed responses when pressing the accelerator. Additionally, some owners have noted that jerking during acceleration may indicate a misfire, while reduced engine power in 2010 models can sometimes be improved by applying electric grease to the throttle body connector and gas pedal assembly electrical connectors. Furthermore, a weak battery or malfunctioning alternator may also contribute to acceleration problems. It is crucial for owners to consider these factors to effectively diagnose and resolve slow acceleration issues in their Buick LaCrosse.