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Service bulletin TSB-059

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 id10032670
Published by NHTSA2010-04-26
Manufacturer's numberTSB-059
Manufacturer's date2009-10-01
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

KIA: SERVICE ACTION: PCM UPGRADE DTC P0304 CYLINDER MIS FIRE WITH 2.0L ENGINE AND A/T LOGIC (SA0250 SOME VEHICLES MAY EXPERIENCE A MIL ON WITH DTC P0304 STORED IN MEMORY. IN MOST CASES THE DTC IS SET ONLY DURING A COLD START AND NORMALLY THE CUSTOMER DOES NOT NOTICE ANY ENGINE STUMBLE, ROUGHNESS OR PERFORMANCE ISSUES. *PE

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

Electrical system, Engine, Software

Trouble codes named

P0304

Vehicles listed
KIA FORTE2010

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
TSBELE091R32017-12-22. Service bulletin. TSB - IDENTIFYING HEAD UNIT SOFTWARE VERSION FOR DIRECT EXCHANGE - This bulletin provides the procedure on how to identify and record the head unit software level on various head unit platforms and generations.
TSB-ELE091R12017-08-31. Service bulletin. TSB: IDENTIFYING HEAD UNIT SOFTWARE VERSION FOR DIRECT EXCHANGE - Identifying Head Unit Software Version For Direct Exchange (ELE091) (Rev 1) - This bulletin provides the procedure on how to identify and record the head unit software level on various head unit platforms and generations. This procedure will now be required when ordering head units through the Direct Exchange Program (see Parts Bulletin 91-961-0005).
TSBELE0912017-01-23. Service bulletin. TSB: IDENTIFYING HEAD UNIT SOFTWARE VERSION FOR DIRECT EXCHANGE - THIS BULLETIN PROVIDES THE PROCEDURE ON HOW TO IDENTIFY AND RECORD THE HEAD UNIT SOFTWARE LEVEL ON VARIOUS HEAD UNIT PLATFORMS AND GENERATIONS. THIS PROCEDURE WILL NOW BE REQUIRED WHEN ORDERING HEAD UNITS THROUGH THE DIRECT EXCHANGE PROGRAM.
TSBSST0412017-01-18. Service bulletin. TSB: KDS - AUDIO UPDATE MODULE (AUM) - THE GDS AUDIO UPDATE MODULE (AUM) WAS INTRODUCED IN FOURTH QUARTER OF 2013. THIS SPECIAL SERVICE TOOL (SST) WAS DEVELOPED TO IMPROVE THE EFFICIENCY AND EFFECTIVENESS OF UPDATING 2010MY, AND LATER, KIA AUDIO HEAD UNITS USING A GDS, AND NOW, THE SAME FUNCTIONALITY IS AVAILABLE ON KDS. SOME TECHNICIANS MAY NOT BE AWARE OF THE BENEFITS THE AUM TOOL HAS TO OFFER. THE AUM ELIMINATES THE NEED FOR MULTIPLE USB FLASH DRIVES FOR SPECIFIC VEHICLE MODELS AND APPLICATIONS WHICH, IF MISAPPLIED, MAY RESULT IN AN IMPROPER AUDIO SYSTEM SOFTWARE UPDATE AND/OR LOCKED UP HEAD UNIT. ADDITIONALLY, FIELD REPORTS HAVE INDICATED THAT USB DRIVES FOR AUDIO UPDATES ARE EASILY LOST OR MISPLACED.
TSB-051 REV2010-10-29. Service bulletin. KIA: AUTO CRUISE CONTROL LOGIC UPDATE FOR UPHILL DRIVING PERFORMANCE IMPROVEMENT. THE ACTION WILL INVOLVE A REPROGRAM OF THE CRUISE CONTROL LOGIC AND IMPROVE ROUGH IDLE AND/OR P0304 LOGIC FOR 2.0L VEHICLES WITH VCM (VARIABLE CHARGE MOTION ACTUATOR). *PE
TSB-070 REV 12010-10-20. Service bulletin. KIA: PCM UPGRADE FOR P0304 DUE TO VCM MOTOR VARIATION. PROCEDURE TO UPGRADE THE POWERTRAIN CONTROL MODULE (PCM) OF SOME VEHICLES. THIS REFLASH HAS ENHANCED VCM (VARIABLE CHARGE MOTION) ACTUATOR LOGIC TO IMPROVE A ROUGH IDLE CONDITION AT START UP OR A MIL ON AND STORED DTC P0304 SET AT START UP. *PE