See also:

Engine coolant
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 ...

A COMFORTABLE AND SOFT RIDE (TOO SOFT)
Behind the wheel of the new Optima it’s easy to point out several more faults – although there are certainly some positive aspects to the driving experience as well. On the down-size, the ca ...

Automatic climate control system
Front climate control 3rd row air conditioning control (if equipped) 1. A/C display 2. Driver's temperature control knob 3. AUTO (automatic control) button 4. Front blower OFF button 5. Fron ...