The reasons are as follows:
1. The first possibility is that the contacts of the glass lift switch are in poor contact, or the lift switch is burned out.
2. The second possibility is that the circuit related to the glass lifter is broken.
3. The third possibility is that the carbon brushes of the lifting motor are excessively worn, causing the motor to fail to work, or the motor is burned out.
4. The fourth possibility is that the lifter cable is broken or the lifter is stuck.
Hello, please check whether the generator belt is loose. A loose generator belt will cause insufficient power generation and cannot charge the battery. The battery light will come on. Try tightening the generator belt. Good luck! Car questions, ask the car guru. Professional technicians from 4S stores can solve the problem in 10 minutes.