Why must caution be exercised when parking a vehicle with overheated brakes?

Answer: C — Pressure from spring brakes may cause brake components to crack

Caution must be exercised when parking a vehicle with overheated brakes because excessive heat can compromise the integrity of the brake components. Spring brakes are designed to engage automatically in the event of a loss of air pressure, and the high heat may lead to thermal expansion, causing stress and potentially cracking the brake components. This can create significant safety issues, as compromised brakes may fail when needed most, leading to an inability to stop the vehicle effectively. Understanding the risks involved with overheated brakes helps emphasize the importance of monitoring brake temperatures during use, especially under heavy braking conditions. Recognizing that heat can lead to structural failures is crucial for maintaining vehicle safety.