Kia Optima 2011–2015 — technical service bulletin
Bulletin SC189_OWNR · NHTSA communication 10177742 · issued Jul 31, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2015
model years
5
vehicle entries
Official summary
Voluntary Emissions Service Campaign (SC189) - Owner Notification Letter - Dear Kia Optima Owner: Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an auxiliary evaporative canister in your vehicle to ensure the evaporative canister is not releasing excessive pollutants into the air.
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.