What Causes the Window Rattle in a Corolla?

[RosalieMarie]

Corolla window rattle causes and solutions are as follows: Loose screws or clips: If the car glass rattles when driving on bumpy roads, the reason may be loose screws or clips; foreign objects inside the door trim panel; or excessive clearance between the glass and inner weatherstrip. To fix such minor issues, simply clean out foreign objects, tighten the glass, secure screws, or replace the inner weatherstrip. Window regulator guide rail rattle: If the glass makes noise during operation. One possibility is noise from the window regulator guide rail, which can be resolved by cleaning the guide rail and applying some lubricant; another is faulty window regulator components, requiring replacement of the entire window regulator assembly. The main causes of window regulator guide rail noise are loose screws or dirty guide rails needing lubrication. After cleaning the guide rails, applying grease can help improve the condition.