Modern vehicles depend heavily on suspension systems to deliver stability, comfort, and reliable control. But when temperatures rise, the entire system undergoes stress that many drivers don’t notice until problems become serious. Heat affects metal, rubber, fluids, and bushings , all of which play a direct role in how well the suspension responds. Understanding these effects helps drivers stay ahead of Suspension System Issues and maintain safe handling in all seasons. How Heat Affects Vehicle Suspension A short look at the key ways high temperatures influence suspension components and overall performance. 1. Heat Weakens Rubber Components Rubber parts , bushings, seals, mounts, and boots , are among the most vulnerable pieces of the suspension. High temperatures cause rubber to dry, crack, and stiffen. Worn-out rubber leads to more vibrations inside the cabin. ...