TSB CS2308B — Kia Service bulletin

CS2308B is a service bulletin on file with NHTSA for the Kia Sedona, 2015–2021 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject…

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

2Documents filed
1Vehicle named
7Model years

Vehicles and model years CS2308B names

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

Every document filed under CS2308B

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
CS2308B_OWNR2 August 23, 2023 Service bulletin
CS2308B_OWNRYP May 23, 2023 Service bulletin

What CS2308B 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 CS2308B?

CS2308B is a service bulletin filed with NHTSA by Kia, covering the Kia Sedona across the 2015–2021 model years. NHTSA's summary reads: CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia has developed a software upgrade that can be installed on the vehicle to restrict the operation of the vehicle's ignition system should a locked vehicle be the subject…

Which vehicles does CS2308B cover?

NHTSA's file names Kia Sedona (2015–2021). 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 CS2308B a recall, and is the repair free?

No. CS2308B 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 CS2308B?

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 CS2308B, 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 CS2308B. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.