What is the potential result of low coolant levels in a vehicle?

Low coolant levels in a vehicle can lead to engine overheating because coolant's primary function is to absorb and dissipate heat generated by the engine during operation. When the coolant level is low, there is insufficient fluid to circulate through the engine and radiator, resulting in inadequate heat removal. This can cause the engine temperature to rise significantly, potentially leading to severe engine damage, such as warped cylinder heads or complete engine failure. Thus, maintaining the correct coolant level is crucial for the vehicle's performance and longevity, highlighting the importance of regular checks and maintenance to prevent such overheating issues.