Lexus GS460 windshield wipers malfunction on intermittent and low settings, undiagnosed by dealer on Lexus GS460

Some Lexus GS460 owners report experiencing issues with windshield wipers malfunctioning on intermittent and low settings. These problems may stem from a malfunctioning intermittent wiper relay that sends incorrect signals to the wiper motor, resulting in the blades ceasing operation. Additionally, owners may encounter issues due to a faulty wiper switch or blown fuse, which can lead to non-functioning wipers. Erratic wiper functions might also be attributed to a malfunctioning wiper motor or pulse board. Furthermore, loose or bent wiper arms can hinder proper contact with the windshield, affecting overall performance, while damage to the wiper arm linkage can impact wiper operation. To resolve these issues, it is advisable to check the wiper relay, switch, and fuses for faults, inspect the motor and arms for damage, and ensure the linkage is functioning correctly. If problems persist, consulting a specialized mechanic familiar with Lexus vehicles is recommended for a thorough diagnosis and repair.