How to deal with bubbles in the car windshield film after several years of use?

[LeBrooke]

Find a sewing needle, poke a small hole in the area with bubbles, then use a card like a bank card to flatten it and expel the air. If the film was installed within the warranty period, you can replace it with a new car glass film. If the warranty has expired, you will need to pay to have it replaced at a professional auto beauty shop. There are generally three reasons for bubbles: first, the glass has a curvature, and the film was not completely shaped to the glass's curvature during the heating process; second, the glass was not cleaned properly or dust got in during the installation; third, the bubbles were caused by the rapid evaporation of the installation liquid after the film was applied. If the bubbles are at the edge of the glass, you can use a film squeegee with heat to press them down.