Why did both the high and low beams suddenly stop working?

1 Answers
MilesFitz
07/24/25 7:03pm
There are many reasons why both high and low beams may stop working. Below are common faults: 1. Wiring issues: Poor or loose connections, or improperly seated connectors can cause this type of fault. 2. Incorrect wattage: Using bulbs with inconsistent wattage during replacement may lead to this issue. 3. Usage duration: In some vehicle models, prolonged use can cause aging or cracking of the reflector (headlight), resulting in light failure or insufficient brightness, necessitating headlight replacement. When poor sealing due to prolonged use (or quality issues) leads to water ingress, foreign objects, or dust accumulation that obstructs the light, it can result in weak or insufficient brightness.
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