Buick LaCrosse low beams turn off automatically while driving, high beams functional on Buick LaCrosse

Some Buick LaCrosse owners report experiencing issues with low beams turning off automatically while driving, despite the high beams remaining functional. These problems may stem from a malfunctioning automatic headlight system, which can cause the low beams to deactivate unexpectedly. Additionally, owners may encounter difficulties related to the headlight control knob or the auto headlight switch, potentially affecting low beam performance. Problems with fuses, relays, or bulbs could also contribute to the low beams not operating correctly, even after bulb replacements. Furthermore, if the vehicle is equipped with IntelliBeam, the system that automatically adjusts high beam usage based on traffic conditions, it may interfere with low beam functionality. To resolve these issues, it is advisable for owners to inspect the automatic headlight system, check the headlight control components, and ensure the IntelliBeam system is set up correctly.