Volvo XC90 intermittent vibration issue resembling a flat tire, resolved by restarting the vehicle. on Volvo XC90

Some Volvo XC90 owners report experiencing intermittent vibration issues that resemble a flat tire, particularly at highway speeds. They note that restarting the vehicle may provide a temporary fix, but the underlying causes can vary widely. Common causes identified include unbalanced or misaligned wheels, tire damage, bent rims, bad wheel bearings, and loose lug nuts. Less common issues such as bad axles, worn suspension or steering parts, and incorrect tire pressure have also been reported. Some owners express concern over potential serious problems, including worn suspension components and damaged drivetrain parts. Additionally, if the vibration persists while the vehicle is idle, it may indicate engine or transmission issues, possibly due to loose mounts or a broken radiator fan. It is recommended that owners have these issues diagnosed and repaired promptly to avoid safety hazards or further vehicle damage, as most vibration problems are generally straightforward to resolve and not overly costly.