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Service bulletin CS1604OWNR_ADDL1

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10158144
Published by NHTSA2019-04-13
Manufacturer's numberCS1604OWNR_ADDL1
Manufacturer's date2019-03-21
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM; STEERING

NHTSA's summary

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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering, Power steering

Vehicles listed
KIA OPTIMA2011, 2012, 2013, 2014
KIA OPTIMA HYBRID2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.