Service bulletin TSBENG157

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	10089389
Published by NHTSA	2017-01-24
Manufacturer's number	TSBENG157
Manufacturer's date	2016-09-21
NHTSA component	ENGINE

NHTSA's summary

TSB: ENGINE VIBRATION AT IDLE - THIS BULLETIN PROVIDES THE PROCEDURE TO REPLACE THE ALTERNATOR PULLEY. SOME 2014-16MY FORTE (YD) VEHICLES WITH 1.8L AND 2.0L NU ENGINES MAY EXPERIENCE AN UNUSUAL ENGINE VIBRATION AT IDLE THAT IS SOMETIMES MORE PREVALENT UNDER CERTAIN ELECTRICAL LOADS. TO CORRECT THIS CONCERN, REPLACE THE EXISTING ALTERNATOR PULLEY WITH A NEW ONE FOLLOWING THE SERVICE PROCEDURE IN THIS BULLETIN.

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

Engine

Vehicles listed
KIA FORTE	2014, 2015, 2016

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

Recalls for the same vehicles and component
2021039	2021-02-01. Engine
2020597	2020-12-04. Engine
20V750000	2020-12-02. ENGINE

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
PI2105_OWNR_501	2026-03-31. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105 FLIGHT 501) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Forte and Forte Koup vehicles equipped with 2.0-liter GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
PI2105_OWNR_401	2025-07-31. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Forte and Forte Koup vehicles equipped with 2.0-liter GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
TSB_ENG222_R8	2025-04-18. 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 2011-2024MY vehicles (refer to the table on pages 9 and 10 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
TSB_ENG222_R7	2025-03-04. 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 2011-2024MY vehicles (refer to the tables on pages 8-9 for applicable models and engine), which may exhibit a symptom of excessive oil consumption.
PI2105_OWNR_301	2024-11-28. Other. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Forte and Forte Koup vehicles equipped with 2.0-liter GDI engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit (“ECU”).
PI2105YZ_TSB_R1	2024-11-14. Service bulletin. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2105Y/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 (PI2105) titled “Nu 2.0L GDI - Knock Sensor Detection System ECU Logic Improvement”. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
PI2002YZ_TSB_R3	2024-11-13. Service bulletin. TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2002Y/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 in (PI2002A, PI2002B and SC200**1) titled “Knock Sensor Detection System - ECU Logic Improvement”. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
PI2105_OWNR_201	2024-04-03. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Kia Forte and Forte Koup vehicles equipped with 2.0-liter engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit ("ECU").
PI2105_OWNR_201	2024-03-02. Service bulletin. PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2105) - This document is the owner renotification advising that Kia is conducting a Product Improvement Campaign to perform a software update on 2016 MY Kia Forte and Forte Koup vehicles equipped with 2.0-liter engines to protect the engine from excessive connecting rod bearing damage. The update will be done free of charge and will only involve the addition of newly developed computer software for the Engine Control Unit ("ECU") (PI2105).
TSB_ENG219_R1	2022-09-30. Service bulletin. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - 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 setting the "Service Interval Reminder" feature available on most 2014-2023MY Kia vehicles (refer to model list on page 2). If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance. Refer to TSB ENG241 for 2023MY~ vehicles equipped with the Oil Life Management System (OLMS) feature not included in table on page 2.