See also:

Rear differential (4WD)
Checking or changing rear differential fluid Have rear differential fluid checked or changed by an Authorized Kia Dealer according to the Maintenance Schedule at the beginning of this section. ...

Features of your vehicle
Keys Remote keyless entry Door locks Tailgate Windows Hood Fuel filler lid Sunroof Steering wheel Mirrors Instrument cluster Rearview camera Hazard warning flasher Lighting Wipers and wa ...

Safety-Minded
As with the rest of the Kia line-up, the 2009 Kia Optima is equipped with many safety features as standard equipment. This includes six airbags (dual advanced front and front-seat mounted side as ...