See also:

Smart key
With a smart key, you can lock or unlock a door (and tailgate) and even start the engine without inserting the key. The functions of the buttons on a smart key are similar to the remote keyless ...

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 ...

Engine oil
Checking the engine oil level 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and wait for a few minute ...