Kia Optima 2011–2012 — technical service bulletin
Bulletin TSB-040 · NHTSA communication 10053728 · issued Aug 1, 2013
Technical service bulletin
communication type
Suspension
component
2011–2012
model years
4
vehicle entries
Official summary
Kia: information provided regarding some vehicles, in states where heavy amounts of road salt is used for de-icing and need to have both rear lower control arms replaced, that results in corrosion that causes a knocking or clunking noise. Models 2011-2012 optima. *pe
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.