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Service bulletin PI2101_TSB

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 id10186035
Published by NHTSA2021-02-02
Manufacturer's numberPI2101_TSB
Manufacturer's date2021-01-20
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

NHTSA's summary

TECHNICAL SERVICE BULLETIN - PRODUCT IMPROVEMENT CAMPAIGN PI2101 - THETA 2.4L MPI - KNOCK SENSOR DETECTION SYSTEM (KSDS) ECU LOGIC IMPROVEMENT (PI2101) - 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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine, Engine control module

Vehicles listed
KIA SORENTO2011

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