Extreme heat is accelerating the deterioration of crucial car components, potentially devaluing vehicles on the used car market. This damage often occurs internally, without immediately visible signs, making it difficult for owners to detect. The heat stresses parts leading to faster wear and tear. This hidden degradation impacts a vehicle’s long-term reliability and resale value. Experts suggest this is a growing concern as heatwaves become more frequent and intense. Car owners may face unexpected repair costs or lower offers when selling their vehicles.