1. Breather hole on the headlamp back cover faulty.
2. During rainy day or after washing car, the internal and external temperature of the lamp is different causing fog may form easily on the inner lamp surface, this is a normal condensation phenomenon
Suggest to check headlmap at workshop.
1. If there is minor fog in the headlamp, it might disappear after air circulation or turning on the headlamp for a while. Usually no replacement of headlamp needed under such situation.
2. If there is water droplets or fog exist in the headlamp under warranty period, may ask for claim from the service center.
3. If the car is no longer under warranty, may choose to repair or not based on owner decision.