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Service bulletin TT065

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 id10089850
Published by NHTSA2017-01-30
Manufacturer's numberTT065
Manufacturer's date2015-05-22
NHTSA componentVISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT

NHTSA's summary

"TECH TIP: BUZZING NOISE FROM DASH SYMPTOM: BUZZING NOISE COMING FROM DASH AREA. REPAIR: OPERATE THE AIR-TEMP CONTROLS OR THE VENT AIR POSITION CONTROL SETTING. IF THE NOISE STOPS AFTER ADJUSTING THE CONTROLS, THE NOISE MAY BE CAUSED BY A FAULTY AIR TEMP ACTUATOR OR AIR VENT POSITION ACTUATOR. TO RESOLVE THIS CONCERN, IDENTIFY WHICH BLEND ACTUATOR IS THE SOURCE OF THE NOISE (SEE IMAGE) AND REPLACE IT."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories, Glass, wipers and mirrors, Heating and air conditioning

Vehicles listed
KIA OPTIMA2011, 2012

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

Other bulletins for the same vehicles and component
TSB_CLI049_R22026-09-02. Service bulletin. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information regarding the partial repair of the Air Conditioning (A/C) compressor assembly on some 2011MY~ Optima Hybrid (TF HEV, JF HEV/PHEV), 2015MY~ Soul EV (PS EV), 2017MY~ Niro (DE HEV/PHEV/EV), 2022MY~ EV6 (CV), 2021MY~ Sorento (MQ4 HEV/PHEV), 2023MY~ Sportage (NQ5 HEV/PHEV), and 2023MY~ Niro (SG2 EV/HEV/PHEV) vehicles.
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