What is a common sign of tire wear?

A common sign of tire wear is uneven tread depth. This refers to the variation in tread height across the tire surface, which can occur due to factors like misalignment, improper inflation, or worn suspension components. When tires wear unevenly, it can affect vehicle handling and safety. Regularly checking for uniform tread depth can help identify issues early, allowing for necessary adjustments or tire rotations to prolong tire life and maintain optimal performance.

The other signs listed are related to vehicle performance and maintenance but do not directly indicate tire wear in the same manner. Vibration in the steering wheel can be a result of unbalanced tires or other mechanical issues. Excessive brake dust suggests issues with the braking system rather than tire condition. Increased fuel efficiency is typically a benefit of proper tire maintenance and inflation, not a sign of tire wear.