What Causes the Rattling Noise from the Passenger Side?

[LaDaniella]

This type of rattling noise usually occurs in areas with many plastic components, such as the dashboard or the inner door panels. Especially when driving on uneven roads, the vehicle body may vibrate or slightly twist due to road bumps, causing these internal plastic parts to resonate and produce rattling noises or friction sounds from squeezing against each other. Common causes of car rattling noises: 1. Tire noise: Tire noises are rhythmic, and the frequency increases with speed. A dull "thudding" sound often indicates tire tread deformation, bulging, severe wear, or insufficient air pressure. A "clicking" sound may suggest small stones stuck in the tread. If the tire produces a roaring noise accompanied by noticeable body shaking or steering deviation, it could indicate a tire blowout. 2. Transmission noise: If there is a "grinding" sound from the transmission while driving, which disappears when the clutch is pressed, it suggests a transmission issue, possibly due to worn transmission bearings or gears, or bearing spots.