There are two reasons why electric vehicle charging displays yellow:
First, the electric car charger shows yellow just after plugging in, which may be due to:
1, the battery is full, no need to charge.
2, the electric car battery is broken and needs to be repaired.
3. The electric car charger is broken and needs to be repaired.
Second, the electric vehicle charger is just plugged in the red light (indicating that it is charging), and then jump to the yellow light (indicating that it is virtual full), and continue to charge for one to two hours.
If this is the case, there is no need to worry, it is a normal charging process, and the electric vehicle is only fully charged.