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Many of the issues with the Lexus RX350 alternator typically stem from a malfunctioning or defective unit. Signs to watch out for include the car stalling, a drained battery, the battery warning light on the dashboard, and dim headlights. If the bearings within the alternator fail, you may hear a grinding noise that changes with the engine's speed. The alternator serves as the car's internal battery charger to maintain a full battery and power the electrical system. A failing alternator will struggle to maintain the charge, resulting in a loss of power to the electrical systems and eventually causing the battery to die. In the event of a faulty alternator, you can often still drive the vehicle or charge the battery to take it to an auto repair shop for servicing.
Issues with the alternator in the Lexus RX 350 can lead to the car stalling, a depleted battery, and dim headlights.