Lexus RX350 won't start, electrical system unresponsive on Lexus RX350

Some Lexus RX350 owners report experiencing starting issues, often related to a dead battery, which is a common cause when the engine fails to crank or cranks slowly. Additionally, corrosion on battery terminals can hinder the starting operation, leading to unresponsiveness in the electrical system. Some owners find that a faulty ignition switch may be the culprit if the starter motor is functioning properly. Other electrical issues, including problems with the push start feature, can also affect the starting system. Furthermore, factors such as a bad alternator, clogged fuel filter, broken starter, blown fuse, empty gas tank, or immobilizer errors may contribute to the vehicle not starting. To address these concerns, it is recommended that owners check the battery for charge and corrosion, inspect the ignition switch and starter motor, and ensure there are no issues with the alternator, fuel filter, fuses, gas levels, or the immobilizer system. If these steps do not resolve the issue, seeking professional assistance may be necessary for effective diagnosis and repair.