Service bulletin PS457

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)
Type	Service bulletin
NHTSA id	10090944
Published by NHTSA	2017-02-08
Manufacturer's number	PS457
Manufacturer's date	2016-09-30
NHTSA component	SERVICE BRAKES; EQUIPMENT

NHTSA's summary

PITSTOP: VARIANT CODING INTEGRATED BRAKE ACTUATION UNITS (IBAU) - WHEN REPLACING THE INTEGRATED BRAKE ACTUATION UNIT, IT IS NECESSARY TO PERFORM VARIANT CODING OF THE NEW MODULE. FOR ADDITIONAL INFORMATION RELATED TO VARIANT CODING CLICK THE VARIANT CODES LINK ON THE KGIS HOME PAGE. (SEE PAGE 2 FOR SAMPLE SCREEN SHOT.)

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

Brakes, Equipment and accessories

Vehicles listed
KIA OPTIMA	2014, 2015, 2016, 2017

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

Recalls for the same vehicles and component
2023529	2023-09-26. Brakes
23V652000	2023-09-25. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
21V331000	2021-05-10. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
20V519000	2020-08-27. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SC205_DP	2022-08-18. Service bulletin. VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Emissions Service Campaign on 2016-2020 MY Kia Optima vehicles equipped with the 2.0L Turbo-GDI engine to update the emission related logic of the Engine Control Module "ECM" with an improved version to ensure compliance with emissions regulations.
TSB_ENG222_R4	2021-12-23. Service bulletin. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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 on diagnosing and/or repairing some 2011-2021MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
TSB_SST067_R1	2021-12-01. Service bulletin. This bulletin provides information regarding test procedure of the Bearing Clearance Tester (BCT) Special Service Tool (SST). The SST comes pre-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
PI1803YZ_TSB_R5	2021-12-01. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1803Y/Z) - 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 related to the Technical Service Bulletin previously published PI1803 titled "Knock Sensor Detection System - ECU Logic Improvement" equipped w/THETA II engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
PI1802YZ_TSB_R5	2021-12-01. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI1802Y/Z) - 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 related to the Technical Service Bulletin previously published PI1802 titled "Knock Sensor Detection System - ECU Logic Improvement" equipped w/THETA II engine. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below returns to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
TSB_CHA106	2021-08-25. Service bulletin. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF THE DUAL PINION MOTOR DRIVER POWER STEERING SYSTEM - This bulletin provides information regarding the availability of partial repair (depending on faulty components) of the Dual Pinion Motor Driven Power Steering (DP-MDPS) system on some 2016-2021MY~ Kia vehicles (refer to the table below) in order to enhance customer satisfaction by promoting a cost-effective repair/replacement of a faulty related part, instead of replacement of the complete DP-MDPS assembly.
SC208_POC	2021-08-25. Service bulletin. SC208_POC: PROOF OF CORRECTION CARD
SC208_STKR	2021-08-25. Service bulletin. SC208_STKR: VOLUNTARY EMISSIONS SERVICE CAMPAIGN COMPLETION STICKER
SC208_QA	2021-08-25. Service bulletin. SC208_QA: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Emissions Service Campaign (SC208).
PI1803_TSB_R6	2021-08-02. Service bulletin. TECHNICAL SERVICE BULLETIN - PRODUCT IMPROVEMENT CAMPAIGN PI1803_TSB_R6: KNOCK SENSOR DETECTION SYSTEM - ECU - LOGIC IMPROVEMENT (PI1803) - This bulletin has been revised to include additional information. This bulletin provides information related to a software update to the Engine Control Unit (ECU) to install the Knock Sensor Detection System (KSDS) in order to protect the engine from excessive connecting rod bearing damage.