TSB CS2308 — Kia Service bulletin

CS2308 is a service bulletin on file with NHTSA for the Kia Sedona, 2011–2021 model years, filed and re-filed as 7 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 (CS2308) - This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2014MY…

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

7Documents filed
1Vehicle named
10Model years

Vehicles and model years CS2308 names

VehicleModel years
Kia Sedona 2011, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021

Every document filed under CS2308

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
CS2308_TSB_R6 June 6, 2024 Service bulletin
CS2308_TSB_R5 March 15, 2024 Service bulletin
CS2308_TSB_R4 January 19, 2024 Service bulletin
CS2308_TSB_R3 September 1, 2023 Service bulletin
CS2308_TSB_R2 June 13, 2023 Service bulletin
CS2308_TSB_R1 May 23, 2023 Service bulletin
CS2308_TSB April 20, 2023 Service bulletin

What CS2308 covers

Electrical — the component vocabulary NHTSA files this communication under.

← All Kia Sedona TSB years TSB lookup by model

Questions buyers ask

What is TSB CS2308?

CS2308 is a service bulletin filed with NHTSA by Kia, covering the Kia Sedona across the 2011–2021 model years. NHTSA's summary reads: TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: ANTI-THEFT S/W LOGIC UPGRADE & DECAL INSTALLATION (CS2308) - This bulletin provides the procedure to upgrade the software logic of the Integrated Body Control Unit (IBU) or Body Control Module (BCM) system on certain 2011-2014MY…

Which vehicles does CS2308 cover?

NHTSA's file names Kia Sedona (2011–2012, 2014–2021). 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 CS2308 a recall, and is the repair free?

No. CS2308 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 CS2308?

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 CS2308, 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 CS2308. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.