The reasons are as follows:
1. The first possibility is that the glass lift switch contacts are making poor contact or the lift switch is burnt out.
2. The second possibility is that the circuit linked to the window regulator is broken.
3. The third possibility is that the lift motor carbon brushes are excessively worn, resulting in a motor malfunction or motor burnout.
4. The fourth possibility is that the lift cable is broken or the lift is stuck.
Hello, please check if the generator belt is loose. A loose generator belt will cause insufficient power production and will not be able to charge the battery. The battery light will turn on. Try tightening the generator belt. Car questions, ask the car guru. Professional technicians from 4S stores can solvere the problem in 10 minutes.