See also:

Recommended lubricants and capacities
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct lubricants also help promote engine efficiency that results in improv ...

Remote keyless entry
Remote keyless entry system operations Lock (1) All doors (and tailgate) are locked if the lock button is pressed. If all doors (and tailgate) are closed, the hazard warning lights will blink ...

Roomy New Interior
However, the Optima's quiet new interior is more upscale and will accommodate four tall adults, or five in a pinch. Front seats are supportive, and the rear-seat area is impressively roomy—alt ...