TSB CS2304 — Kia Service bulletin

CS2304 is a service bulletin on file with NHTSA for the Kia Sorento, 2011–2015 model years, filed and re-filed as 6 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

6Documents filed
1Vehicle named
5Model years

Vehicles and model years CS2304 names

VehicleModel years
Kia Sorento 2011, 2012, 2013, 2014, 2015

Every document filed under CS2304

Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.

Document IDFiledType
CS2304_TSB_R7 June 6, 2024 Service bulletin
CS2304_TSB_R6 October 6, 2023 Service bulletin
CS2304_TSB_R5 August 7, 2023 Service bulletin
CS2304_TSB_R4 July 13, 2023 Service bulletin
CS2304_TSB_R3 May 22, 2023 Service bulletin
CS2304_TSB_R2 May 5, 2023 Service bulletin

What CS2304 covers

Electrical — the component vocabulary NHTSA files this communication under.

← All Kia Sorento TSB years TSB lookup by model

Questions buyers ask

What is TSB CS2304?

CS2304 is a service bulletin filed with NHTSA by Kia, covering the Kia Sorento across the 2011–2015 model years. NHTSA's summary reads: TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2304) - 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…

Which vehicles does CS2304 cover?

NHTSA's file names Kia Sorento (2011–2015). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB CS2304 a recall, and is the repair free?

No. CS2304 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of CS2304?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under CS2304, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under CS2304. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.