See also:

Engine cooling system
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once ...

Brake system
Power brakes Your vehicle has power-assisted brakes that adjust automatically through normal usage. In the event that the power-assisted brakes lose power because of a stalled engine or some oth ...

THE VERDICT
Just a few years ago, the Kia Optima would have been a genuine competitor to the American sedans in the family car category. Unfortunately for Kia, companies like Ford and General Motors have made ...