Kia bulletin SA591
Kia filed this with NHTSA as a over-the-air update dated Oct 16, 2024, received Oct 23, 2024, about the electrical system — 2 documents under this number: OTA_SA591, TSB_ELE358. It names 1 model year (2025). A over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTECHNICAL SERVICE BULLETIN: SERVICE ACTION: ISLA LOGIC IMPROVEMENT (SA591) - This bulletin provides information to improve the Intelligent Speed Limit Assist (ISLA) function on certain 2025MY Sorento (MQ4a PE) vehicles equipped with 2.5L T-GDI Theta â…¢ engines produced from June 25, 2024 through August 8, 2024. When using Smart Cruise Control with ISLA enabled, an affected vehicle may not automatically update the cruise set speed to a new posted speed limit due to a software logic error. If this occurs, the driver can manually change the cruise set speed and/or deactivate the cruise control normally by using the steering wheel controls and brake pedal.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| OTA_SA591 | Over-the-air update | Oct 16, 2024 | 11009533 | not yet checked |
| TSB_ELE358 | Service bulletin | Oct 15, 2024 | 11009073 | not yet checked |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia SA591 a recall?
No. A over-the-air update is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the SA591 repair free?
A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does SA591 cover?
The manufacturer filed it against 1 model year: 2025 Kia Sorento. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.