Here's a brief overview of the most common tire issues and the reasons for replacements: Insufficient air or excessive weight can harm sidewalls and flatten treads; overinflation causes excessive wear at the center; incorrect wheel alignment leads to uneven wear patterns; high mileage results in worn treads; and punctures can damage sidewalls and treads. For more information on how to deal with tire issues and vehicle problems: haynes.com #HaynesManuals #HaynesShowsYouHow #TireTroubles #TreadWea