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Service bulletins for the 2012 Kia Optima

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.

294 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
TSB-119 REV-12012-08-07. Service bulletin. ENGINE. KIA: WHEN ENGINE IS AT 2000 RPM AND OPERATING TEMPERATURE, IT MAY EXPERIENCE, FROM THE BALANCE SHAFT MODULE (BSM), A WHISTLING NOISE. *PE
TSB-1102012-01-24. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE. KIA: SOME VEHICLES WARNING LIGHT FOR THE ENGINE MAY ILLUMINATE. VOLTAGE SHOULD BE RECORDED ON RO SHEET. USE GDS FOR LOWER MECHANICAL STOP OF BOOST PRESSURE. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.