See also:

Interior Refinement
The style makeover continues into the Optima's cabin with expanded electronics melded with refreshed fascia patterns and color schemes. Based on a new platform, the standard audio system features ...

Manual climate control system
1. Fan speed control knob 2. Mode selection knob 3. Temperature control knob 4. Air conditioning button (if equipped) 5. Air intake control button 6. Rear window defroster button (if equipped ...

If the engine overheats
If your temperature gauge indicates overheating, you experience a loss of power, or hear loud pinging or knocking, the engine is probably too hot. If this happens, you should: 1. Pull off the roa ...