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Service bulletins for the 2015 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Throttle and cruise control are shown. Show all

Bulletins, newest first
PS1152021-06-14. Service bulletin. VEHICLE SPEED CONTROL. Service Action: Exterior Door Handle Trim Cap Replacement (SA198)
PS3252017-08-02. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. PITSTOP: SLIGHT VARIATION IN THE ?SET? SPEED AFTER SETTING CRUISE CONTROL - A few customers have complained about their vehicle briefly accelerating beyond the set cruising speed and then slowing down to the "set" speed. This Article addresses that concern.
PS4002017-01-31. Service bulletin. VEHICLE SPEED CONTROL; ENGINE. PITSTOP: SMART PEDAL FEATURE - THE “SMART PEDAL” IS AN INTEGRAL PART OF THE ENGINE MANAGEMENT SYSTEM (EMS) FUNCTIONALITY WHICH MONITORS AND PREVENTS THE SIMULTANEOUS ACTIVATION OF ACCELERATOR AND BRAKE PEDALS. WHEN ENGAGED, THE FEATURE REDUCES ENGINE POWER TO IDLE. MOST CUSTOMERS WILL NEVER NOTICE THE SMART PEDAL FEATURE WHEN ACTIVE, HOWEVER, CUSTOMERS WHO TEND TO REST THEIR FOOT ON THE BRAKE PEDAL WHILE DRIVING MIGHT DESCRIBE A HESITATION OR DELAY SYMPTOM AND NOT REALIZE THAT THE EMS ELECTRONIC CONTROL MODULE IS INTERVENING, AS DESIGNED.
TT0662017-01-30. Service bulletin. ELECTRICAL SYSTEM; VEHICLE SPEED CONTROL. "TECH TIP: DTC C1203 OR C1212 - SPEED SENSOR FAILURE SYMPTOM: C1203 – RH FRONT WHEEL SPEED SENSOR OPEN/SHORT AND/OR C1212 – VEHICLE SPEED SENSOR FAILURE. REPAIR: CHECK FOR A SHORT IN THE MAIN ESC HARNESS NEAR THE RADIATOR BRACKET. VERIFY POSSIBLE RUBBING BETWEEN THE BRACKET THAT RUNS UNDER THE HEADLIGHT TO THE RADIATOR AND THE HARNESS (SEE IMAGE). REPAIR THE DAMAGED WIRES AND ADD INSULATION TO THE BRACKET TO PREVENT ANY FURTHER DAMAGE TO THE HARNESS. CLEAR ANY DTCS (IN ACTIVE OR HISTORY). "

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