{"nhtsa_id":10090089,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-02-01","date":"2016-08-12","document_id":"CS1604OWNER","mfr_campaign":null,"replaces":null,"component":"STEERING","mfr_system":null,"summary":"OWNER LETTER: CS1604 - CUSTOMER SATISFACTION/WARRANTY EXTENSION PROGRAM - DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICA, INC. WOULD LIKE TO THANK YOU FOR YOUR PURCHASE OF A KIA OPTIMA VEHICLE. BECAUSE KIA VALUES YOU AS OUR CUSTOMER, WE ARE CONDUCTING A CUSTOMER SATISFACTION/WARRANTY EXTENSION PROGRAM REGARDING THE MOTOR DRIVEN POWER STEERING (MDPS) UNIT IN ALL 2011-2013 MY AND SOME 2014 MY OPTIMA VEHICLES.","document":null,"url":"https://open.wenmarpro.com/bulletins/10090089","components":[{"id":"steering","name":"Steering","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"OPTIMA","year_from":2011,"year_to":2014,"match":"exact","vehicle_ids":["2011_kia_optima","2012_kia_optima","2013_kia_optima","2014_kia_optima"]},{"make":"KIA","model":"OPTIMA HYBRID","year_from":2011,"year_to":2014,"match":"base","vehicle_ids":["2011_kia_optima","2012_kia_optima","2013_kia_optima","2014_kia_optima"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}