Toyota Prius C antifreeze smell suspected to be related to incomplete heater core issue on Toyota Prius C

Some Toyota Prius C owners report experiencing an antifreeze smell while driving, which may indicate a leak in the cooling system. This distinct odor is often associated with an incomplete heater core issue, as it is a common cause of the smell without leading to overheating. Additionally, some owners find that leaks in the heater core can worsen over time due to heat exposure. Even in the absence of visible leaks, a jammed thermostat stuck in the open position can also contribute to the antifreeze odor inside the vehicle. To address these concerns, it is crucial for owners to have their vehicle inspected by a qualified mechanic to diagnose and resolve any heater core or related component issues.