What does a continuous vibration in the steering indicate when driving at higher speeds?

A continuous vibration in the steering wheel when driving at higher speeds typically indicates an issue with the wheel balance. When wheels are not balanced properly, it can lead to uneven distribution of weight as they spin, causing vibrations that are felt through the steering system. This problem becomes more noticeable at higher speeds due to the increased forces at play.

On the other hand, if the brakes were overheating, you would usually notice other symptoms such as a burning smell, decreased braking performance, or a grinding noise rather than a vibration in the steering. An out-of-alignment vehicle may also cause vibrations, but this is usually more consistent across all speed ranges and might also result in the vehicle pulling to one side or another. Low tire pressure typically causes a floaty feeling in the steering or a feeling of instability rather than a consistent vibration.