WenmarOpen by Wenmar Pro

Service bulletins for the 2013 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
TSBGEN0602017-02-02. Service bulletin. EQUIPMENT; HYBRID PROPULSION SYSTEM. TSB: HYBRID FUEL EFFICIENCY TIPS AND TROUBLESHOOTING PROCEDURE - THE OPTIMA HYBRID (TF HEV) OFFERS CUSTOMERS THE POTENTIAL OF EXCELLENT FUEL ECONOMY. HOWEVER, BECAUSE SOME CUSTOMERS MAY NOT BE ACHIEVING THE PUBLISHED EPA-RATED CITY/HIGHWAY NUMBERS, THEY MAY BRING A VEHICLE TO A DEALERSHIP’S SERVICE DEPARTMENT. THE FOLLOWING INFORMATION IS PROVIDED SO THAT THE SERVICE DEPARTMENT WILL BE WELL INFORMED TO ANSWER THE CUSTOMER’S CONCERN AND, IF NECESSARY, TO TROUBLESHOOT THE VEHICLE.
CS1604QA2017-02-01. Service bulletin. STEERING. Q AND A: CS1604 - ALL 2011-2013 MY AND SOME 2014 MY OPTIMA VEHICLES MOTOR DRIVEN POWER STEERING (MDPS) FLEXIBLE COUPLING CUSTOMER SATISFACTION / WARRANTY EXTENSION PROGRAM
CS1604OWNER2017-02-01. Service bulletin. STEERING. OWNER LETTER: CS1604 - CUSTOMER SATISFACTION/WARRANTY EXTENSION PROGRAM - DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICA, INC. WOULD LIKE TO THANK YOU FOR YOUR PURCHASE OF A KIA OPTIMA VEHICLE. BECAUSE KIA VALUES YOU AS OUR CUSTOMER, WE ARE CONDUCTING A CUSTOMER SATISFACTION/WARRANTY EXTENSION PROGRAM REGARDING THE MOTOR DRIVEN POWER STEERING (MDPS) UNIT IN ALL 2011-2013 MY AND SOME 2014 MY OPTIMA VEHICLES.
CS1604FORM2017-02-01. Service bulletin. STEERING. REQUEST FOR REIMBURSEMENT FORM: CS1604 - 2011-2013 AND SOME 2014 MY OPTIMA VEHICLES MOTOR DRIVEN POWER STEERING (MDPS) CUSTOMER SATISFACTION/WARRANTY EXTENSION PROGRAM - IF YOU HAVE PAID TO HAVE THE FLEXIBLE COUPLING IN THE MDPS REPLACED, YOU MAY BE ELIGIBLE FOR REIMBURSEMENT FOR SOME OR ALL OF THAT EXPENSE. MAIL THIS COMPLETED REQUEST FOR REIMBURSEMENT FORM TO KIA, ALONG WITH DOCUMENTATION SPECIFIED BELOW, FOR REVIEW AND CONSIDERATION AT THE FOLLOWING ADDRESS: CONSUMER ASSISTANCE CENTER, KIA MOTORS AMERICA, INC., P.O. BOX 52410, IRVINE, CA 92619-2410
CS1604DEALERPSM2017-02-01. Service bulletin. STEERING. DEALER PARTS AND SERVICE MANAGER MEMO: CS1604 - KIA MOTORS AMERICA, INC. IS CONDUCTING A CUSTOMER SATISFACTION / WARRANTY EXTENSION PROGRAM REGARDING THE MOTOR DRIVEN POWER STEERING (MDPS) ON ALL 2011-2013 MY AND SOME 2014 MY KIA OPTIMA VEHICLES. THE MDPS UNIT MAY EXPERIENCE NOISE WHEN TURNING THE STEERING WHEEL LEFT OR RIGHT, ESPECIALLY WHILE THE VEHICLE IS STOPPED. KIA’S ANALYSIS HAS IDENTIFIED THAT THIS CONDITION OCCURS MAINLY IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS DUE TO THE WEAR OF THE FLEXIBLE COUPLING IN THE MDPS, AFTER EXTENDED USAGE OVER YEARS. THE EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS INCLUDE: ALABAMA, FLORIDA, GEORGIA, HAWAII, LOUISIANA, MISSISSIPPI, NORTH CAROLINA, SOUTH CAROLINA, AND TEXAS. • FOR VEHICLES SOLD OR CURRENTLY REGISTERED IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS, THE FLEXIBLE COUPLING WILL BE REPLACED WITH A NEW ONE IF IT HAD NOT BEEN PREVIOUSLY REPLACED UNDER WARRANTY. • FOR VEHICLES SOLD OR REGISTERED IN ALL OTHER STATES, KIA IS EXTENDING THE WARRANTY ON THE FLEXIBLE COUPLING IN THE MDPS FROM 5 YEARS/60,000 MILES TO 10 YEARS/UNLIMITED MILEAGE, STARTING FROM THE FIRST DATE OF SERVICE IN ORDER TO ENSURE CUSTOMER SATISFACTION.
CS1604DEALERP2017-02-01. Service bulletin. STEERING. DEALER PRINCIPAL MEMO: CS1604 - KIA MOTORS AMERICA, INC. IS CONDUCTING A CUSTOMER SATISFACTION / WARRANTY EXTENSION PROGRAM REGARDING THE MOTOR DRIVEN POWER STEERING (MDPS) ON ALL 2011-2013 MY AND SOME 2014 MY KIA OPTIMA VEHICLES. THE MDPS UNIT MAY EXPERIENCE NOISE WHEN TURNING THE STEERING WHEEL LEFT OR RIGHT, ESPECIALLY WHILE THE VEHICLE IS STOPPED. KIA’S ANALYSIS HAS IDENTIFIED THAT THIS CONDITION OCCURS MAINLY IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS DUE TO THE WEAR OF THE FLEXIBLE COUPLING IN THE MDPS, AFTER EXTENDED USAGE OVER YEARS. THE EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS INCLUDE: ALABAMA, FLORIDA, GEORGIA, HAWAII, LOUISIANA, MISSISSIPPI, NORTH CAROLINA, SOUTH CAROLINA, AND TEXAS. • FOR VEHICLES SOLD OR CURRENTLY REGISTERED IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS, THE FLEXIBLE COUPLING WILL BE REPLACED WITH A NEW ONE IF IT HAD NOT BEEN PREVIOUSLY REPLACED UNDER WARRANTY. • FOR VEHICLES SOLD OR REGISTERED IN ALL OTHER STATES, KIA IS EXTENDING THE WARRANTY ON THE FLEXIBLE COUPLING IN THE MDPS FROM 5 YEARS/60,000 MILES TO 10 YEARS/UNLIMITED MILEAGE, STARTING FROM THE FIRST DATE OF SERVICE IN ORDER TO ENSURE CUSTOMER SATISFACTION.
TSBELE0382017-01-31. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TSB: INFORMATION FOR DEALER UVO UPGRADE / RETAIL CUSTOMER - THIS BULLETIN PROVIDES THE RETAIL CUSTOMER’S PROCEDURE FOR UPGRADING THE KIA UVO (YOUR VOICE) SYSTEM. KIA UVO OWNERS HAVE THE OPTION TO DOWNLOAD AVAILABLE UPGRADES DIRECTLY FROM THE KIA.COM WEBSITE AND CAN PERFORM THE UPGRADE THEMSELVES OR HAVE THE DEALER PERFORM THE UPGRADE IN WHICH CASE ADDITIONAL LABOR CHARGES MAY APPLY. FOR CUSTOMERS WHO PERFORM THEIR OWN UPGRADE, KIA PROVIDES THE CUSTOMER WITH SOFTWARE AND UPGRADE INSTRUCTIONS. IF THE CUSTOMER OPTS TO HAVE THE DEALER PERFORM THE UPGRADE, THE UPGRADE PROCEDURE IS OUTLINED IN THIS BULLETIN.
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.
TSBELE0802017-01-31. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. TSB: SERVICE ACTION: AVN SYSTEM UPGRADE (SA189) - THIS BULLETIN PROVIDES THE PROCEDURE FOR UPGRADING THE NAVIGATION SYSTEM SOFTWARE OF SOME 2013MY OPTIMA (TF/QF) AND SOME 2013MY SOUL (AM) VEHICLES, TO IMPROVE BLUETOOTH® CONNECTIVITY. KIA IS REQUESTING THE COMPLETION OF THIS SERVICE ACTION ON ALL AFFECTED VEHICLES. BEFORE CONDUCTING THE PROCEDURE, VERIFY THAT THE VEHICLE IS INCLUDED IN THE LIST OF THE AFFECTED VINS.
TT0672017-01-30. Service bulletin. ELECTRICAL SYSTEM. "TECH TIP: DTC P1A89 - DC/DC CONVERTER CURRENT SENSOR FAULT SYMPTOM: DTC - MIL – P1A89 DC/DC CONVERTER CURRENT SENSOR FAULT AND ILLUMINATED BATTERY CHARGING SYSTEM WARNING LAMP IN THE CLUSTER. REPAIR: USE GDS/KDS TO CHECK THE LDC OUTPUT CURRENT UNDER LDC > CURRENT DATA (SEE IMAGE). IF THE OUTPUT IS ZERO AMPS, THIS MAY INDICATE AN INTERNAL FAILURE OF THE LDC MODULE INSIDE THE HYBRID POWER CONTROL UNIT (HPCU). REPLACEMENT OF THE HPCU WILL BE NECESSARY."
SC114QA2017-01-27. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Q AND A: SC114 – ECU UPDATE – MIL ON WITH DTC P0087 / VOLUNTARY SERVICE CAMPAIGN Q&A
SC114OWNEROPTIMA2017-01-27. Service bulletin. ELECTRICAL SYSTEM; ENGINE. OWNER LETTER: DEAR KIA OPTIMA OWNER: KIA MOTORS AMERICA, INC. IS CONDUCTING A VOLUNTARY SERVICE CAMPAIGN TO UPDATE THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012-2013 MY OPTIMA VEHICLES WHICH COULD OTHERWISE EXPERIENCE A DECREASE IN ACCELERATION ACCOMPANIED BY THE ILLUMINATION OF THE “CHECK ENGINE” OR MALFUNCTION INDICATOR LAMP (MIL).
SC114DEALERSM2017-01-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM. DEALER SERVICE MANAGER MEMO: ATTENTION: ALL KIA SERVICE MANAGERS - KIA MOTORS AMERICA, INC. WILL BE CONDUCTING A VOLUNTARY SERVICE CAMPAIGN TO UPDATE THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012-2014 MY SORENTO, 2012-2013 MY OPTIMA, AND 2012-2013 MY SPORTAGE VEHICLES EQUIPPED WITH THE 2.4L AND 2.0L TURBO GDI ENGINES. THE SUBJECT VEHICLES’ ENGINES ARE EQUIPPED WITH A GASOLINE DIRECT INJECTION (GDI) SYSTEM THAT UTILIZES A FLOW CONTROL VALVE (FCV) TO CONTROL THE SUPPLY OF FUEL. THE FCV NEEDLE MAY EXPERIENCE EXCESSIVE WEAR, EVENTUALLY RESULTING IN IMPAIRMENT OF FUEL FLOW. IF THAT HAPPENS, AND TO PROTECT THE ENGINE, THE ECU MAY REDUCE ENGINE ACCELERATION WHILE ILLUMINATING THE “CHECK ENGINE” OR MALFUNCTION INDICATOR LAMP (MIL). THE ECU UPDATE WILL IMPROVE THE DURABILITY AND OPERATION OF THE FCV NEEDLE.
SC114DEALERP2017-01-27. Service bulletin. ENGINE; ELECTRICAL SYSTEM. DEALER PRINCIPAL MEMO: ATTENTION: ALL DEALER PRINCIPALS - KIA MOTORS AMERICA, INC. WILL BE CONDUCTING A VOLUNTARY SERVICE CAMPAIGN, TO UPDATE THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012-2014 MY SORENTO, 2012-2013 MY OPTIMA, AND 2012-2013 MY SPORTAGE VEHICLES EQUIPPED WITH THE 2.4L OR 2.0L TURBO GDI ENGINES, WHICH MAY EXPERIENCE THE “CHECK ENGINE” LIGHT OR MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION DUE TO THE DIAGNOSTIC TROUBLE CODE (DTC) P0087.
TSBSC114R12017-01-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE. TSB: VOLUNTARY SERVICE CAMPAIGN: ECM UPGRADE - MIL ON WITH DTC P0087 (SC114) - THIS BULLETIN PROVIDES INFORMATION RELATED TO AN ECM SOFTWARE UPDATE FOR THE ENGINE CONTROL UNIT (ECU) IN CERTAIN 2012~2014MY SORENTO, 2012~2013MY OPTIMA, AND 2012~2013MY SPORTAGE VEHICLES EQUIPPED WITH THE 2.4L AND 2.0L TURBO GDI ENGINES. THE SUBJECT VEHICLE’S ENGINES ARE EQUIPPED WITH A GASOLINE DIRECT INJECTION (GDI) SYSTEM THAT UTILIZES A FLOW CONTROL VALVE (FCV) TO CONTROL THE SUPPLY OF FUEL. THE FCV NEEDLE MAY EXPERIENCE EXCESSIVE WEAR, EVENTUALLY RESULTING IN IMPAIRMENT OF FUEL FLOW. IF THAT HAPPENS, AND TO PROTECT THE ENGINE, THE ECU MAY REDUCE ENGINE ACCELERATION WHILE ILLUMINATING THE “CHECK ENGINE” OR MALFUNCTION INDICATOR LAMP (MIL). THE ECU UPDATE WILL IMPROVE THE DURABILITY AND OPERATION OF THE FCV NEEDLE.
TSBCLI0262017-01-27. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING. TSB: A/C EVAPORATOR FREEZE-UP DURING EXTENDED DRIVE - THIS BULLETIN PROVIDES THE PROCEDURE TO REPLACE THE EVAPORATOR TEMPERATURE SENSOR OF SOME OPTIMA (TF/QF) AND SORENTO (XMA) VEHICLES (SEE PRODUCTION DATES ON PAGE 3), WHICH MAY EXPERIENCE FREEZING OF CONDENSATION ON THE EVAPORATOR CORE AND THE FOLLOWING A/C PERFORMANCE RELATED CONCERNS.
PS4142017-01-27. Service bulletin. SUSPENSION. PITSTOP: DIFFICULTY ASSEMBLING STRUT BEARING/INSULATOR - ON SOME OPTIMA VEHICLES, WHEN REPLACING THE STRUT INSULATOR OR STRUT BEARING WITH NEW PARTS YOU MAY ENCOUNTER DIFFICULTY INSTALLING THE NEW STRUT BEARING INTO PLACE ON THE INSULATOR. THIS CONDITION IS DUE TO A CHANGE IN THE DESIGN OF THE STRUT BEARING (A) WHICH RESULTS IN TIGHTER TOLERANCES BETWEEN THE BEARING AND INSULATOR. REFER TO THE PROCEDURE BELOW FOR MORE INFORMATION.
TSBTRA051R12017-01-27. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TSB: 6 SPD A/T SOLENOID REPLACEMENT – MULTIPLE DTCS - THIS BULLETIN PROVIDES INFORMATION RELATING TO THE REPLACEMENT OF VARIOUS SHIFT SOLENOIDS ON 6-SPEED AUTOMATIC TRANSAXLES WITH DTCS P0741, P0743, P0748, P0753, P0758, P0763, P0768, P0773, P1778 AND P2709. REPLACE THE SOLENOIDS IF CURRENT OR HISTORY CODES ARE PRESENT; DO NOT REPLACE THE TRANSAXLE. TO REDUCE VEHICLE REPAIR TIME, THIS PROCEDURE CAN BE PERFORMED WITH THE TRANSAXLE INSTALLED IN THE VEHICLE. REFER TO KGIS FOR SOLENOID PACK REMOVAL AND REINSTALLATION PROCEDURES FOR THE SPECIFIC YEAR AND MODEL OF THE VEHICLE.
TSBELE0892017-01-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TSB: NAVIGATION HEAD UNIT SD CARD REPLACEMENT - THIS BULLETIN DESCRIBES THE SD CARD EXCHANGE/REPLACEMENT PROCEDURE RELATED TO ERROR MESSAGES THAT MAY BE DISPLAYED ON THE NAVIGATION SCREEN WHEN THE INCORRECT SD CARD IS INSERTED. NOTE: ONLY NEW MODELS (DURING PDI INSPECTION OR AT THE POINT OF PURCHASE) OR COMPATIBILITY MISMATCHES THAT OCCUR AFTER HEAD UNIT REPLACEMENT WILL BE CONSIDERED FOR THIS PROGRAM.
PS4222017-01-26. Service bulletin. ELECTRICAL SYSTEM. PITSTOP: ABS HECU REPLACEMENT DUE TO HESITATION CONCERNS - WHEN ADDRESSING CUSTOMER CONCERNS REGARDING HESITATION FROM THE VEHICLE ON HARD ACCELERATION, TEST DRIVE THE VEHICLE TO VERIFY THE CONCERN. PRIOR TO TEST DRIVING THE VEHICLE, ELIMINATE COMMON ELECTRONIC STABILITY CONTROL (ESC) TRIGGER FACTORS SUCH AS EXCESSIVE OR UNEVENLY WORN TIRES AND SLIPPERY ROAD CONDITIONS. IF DURING HARD ACCELERATION TESTING THE ESC LIGHT ILLUMINATES ON THE DASH AND ABNORMAL HESITATION IS EXPERIENCED, REPLACE THE ABS HYDRAULIC ELECTRONIC CONTROL UNIT (HECU) WITH A MODULE CONTAINING THE LATEST S/W VERSION. NOTE: ALWAYS VERIFY LATEST APPLICABLE P/N INFORMATION USING EPC.
TSBCHA0722017-01-26. Service bulletin. STEERING. TSB: MDPS FLEXIBLE COUPLING REPLACEMENT CUSTOMER SATISFACTION PROGRAM (CS1604) - THIS BULLETIN PROVIDES INFORMATION REGARDING THE REPLACEMENT OF THE FLEXIBLE COUPLING IN THE MOTOR DRIVEN POWER STEERING (MDPS) ON SOME 2011-2014 MY OPTIMA (QF/TF/TFH) VEHICLES, PRODUCED FROM AUGUST 12, 2010 TO DECEMBER 18, 2013. THE MDPS UNIT MAY EXPERIENCE NOISE WHEN TURNING THE STEERING WHEEL LEFT OR RIGHT, ESPECIALLY WHILE THE VEHICLE IS STOPPED. KIA’S ANALYSIS HAS IDENTIFIED THAT THIS CONDITION OCCURS MAINLY IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS DUE TO THE WEAR OF THE FLEXIBLE COUPLING IN THE MDPS, AFTER EXTENDED USAGE OVER YEARS. THE EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS INCLUDE: ALABAMA, FLORIDA, GEORGIA, HAWAII, LOUISIANA, MISSISSIPPI, NORTH CAROLINA, SOUTH CAROLINA, AND TEXAS. FOR VEHICLES SOLD OR CURRENTLY REGISTERED IN EXTREMELY HIGH HUMIDITY STATES ADJACENT TO WARM OCEAN WATERS, REPLACE THE FLEXIBLE COUPLING WITH A NEW ONE IF IT HAS NOT BEEN PREVIOUSLY REPLACED UNDER WARRANTY. BEFORE CONDUCTING THE PROCEDURE, VERIFY THAT THE VEHICLE IS INCLUDED IN THE LIST OF THE AFFECTED VINS. FOR VEHICLES SOLD OR REGISTERED IN ALL OTHER STATES, KIA IS EXTENDING THE WARRANTY ON THE FLEXIBLE COUPLING IN THE MDPS FROM 5 YEARS/60,000 MILES TO 10 YEARS/UNLIMITED MILEAGE, STARTING FROM THE DATE OF FIRST SERVICE IN ORDER TO ENSURE CUSTOMER SATISFACTION. IF THE MDPS UNIT EXPERIENCES NOISE WHEN TURNING THE STEERING WHEEL LEFT OR RIGHT, REPLACE THE AFFECTED FLEXIBLE COUPLING WITH A NEW ONE.
TSBCHA0662017-01-24. Service bulletin. SUSPENSION:FRONT:STABILIZER BAR. "FRONT STABILIZER LINK REPLACEMENT - THIS BULLETIN PROVIDES THE PROCEDURE TO REPLACE THE FRONT STABILIZER LINKS OF SOME OPTIMA (TF/QF), OPTIMA HYBRID (TF HEV) AND RIO (UB) VEHICLES, WHICH MAY EXPERIENCE AN ABNORMAL NOISE EMANATING FROM THE FRONT OF THE VEHICLE WHEN GOING OVER BUMPS OR UNEVEN PAVEMENT. TO RESOLVE THE NOISE CONCERN, PERFORM THE PROCEDURE OUTLINED IN THIS BULLETIN TO REPLACE THE FRONT STABILIZER LINKS WITH THE IMPROVED PARTS."
TSBTRA0592017-01-24. Service bulletin. POWER TRAIN. HCU/TCU UPGRADE - FOR 100 MESH SOLENOID EQUIPPED HYBRID TRANSMISSIONS -THIS BULLETIN PROVIDES INFORMATION RELATED TO A SOFTWARE UPGRADE OF THE HYBRID CONTROL UNIT (HCU) AND THE TRANSMISSION CONTROL UNIT (TCU) OF SOME 2011-2016 MY OPTIMA HYBRID (TF HEV) VEHICLES AFTER REPLACEMENT OF THE TRANSMISSION WITH IMPROVED 100 MESH SOLONOID FILTERS HAS TAKEN PLACE. TO APPLY THE IMPROVED LOGIC, THE HCU/TCU SHOULD BE REPROGRAMMED USING THE GDS/KDS DOWNLOAD, AS DESCRIBED IN THIS BULLETIN.
PS3912017-01-24. Service bulletin. ELECTRICAL SYSTEM. "PITSTOP: OPTIMA HYBRID (TF HEV) WITH DTC B1695 - LOST COMMUNICATION WITH E-COMP - WHEN ADDRESSING A CUSTOMER CONCERN RELATED TO AN A/C SYSTEM NOT BLOWING COLD AIR AND DTC B1695 IS ACTIVE IN THE A/C CONTROL UNIT, THIS COULD BE THE RESULT OF ONE, OR MORE, OF THE FOLLOWING CONDITIONS: • A BLOWN HIGH-VOLTAGE (HV) FUSE IN THE E-COMP 270 VOLT SUPPLY CIRCUIT. • A CIRCUIT CONCERN BETWEEN THE A/C CONTROL UNIT AND THE E-COMP • A HIGH-VOLTAGE (HV) CIRCUIT CONCERN"
TSBTRA049R12017-01-24. Service bulletin. POWER TRAIN. TSB: 6-SPD. A/T ADAPTIVE VALUE RESET /RELEARN - THIS BULLETIN PROVIDES THE PROCEDURES NECESSARY TO RESET AND RELEARN THE ADAPTIVE VALUES AFTER TRANSMISSION REPLACEMENT OR REPROGRAMMING/REPLACEMENT OF THE PCM/TCM. AFTER THE ADAPTIVE VALUES ARE RESET, THE TRANSMISSION COMPUTER ADAPTIVE VALUES MUST BE RELEARNED BY DRIVING IN A PRECISE MANNER TO “TEACH” THE COMPUTER THE PROPER SOLENOID DUTY AND LINE PRESSURE FOR THE NEW TRANSMISSION/COMPUTER COMBINATION.

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