What Causes the Car Battery Light to Illuminate and How to Resolve It?

1 Answers
ReaganMarie
07/30/25 12:53am
The car battery light will illuminate when the generator's output voltage is lower than the battery voltage, the generator is not functioning, or there is a fault in the power supply circuit. This warning light indicates that the generator is not producing electricity. Normally, it turns on when the ignition switch is set to the ON position and should turn off after the engine is started. If the car battery is low on charge, the battery indicator light will also illuminate. However, in this case, the vehicle can still be used.
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