Kia bulletin TSB_ELE332
What it saysThis bulletin provides information to replace the Electric Water Pump (EWP) coolant hose on some 2023-2024MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through January 24, 2024, which may exhibit a coolant… NHTSA’s full summary ↓
Kia filed this with NHTSA as a service bulletin dated Apr 3, 2024, received May 6, 2024, about the electrical system. It names 2 model years (2023–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
TECHNICAL SERVICE BULLETIN: EWP COOLANT HOSE REPLACEMENT - This bulletin provides information to replace the Electric Water Pump (EWP) coolant hose on some 2023-2024MY Niro EV (SG2 EV) vehicles produced from July 11, 2022 through January 24, 2024, which may exhibit a coolant leak from under the bulkhead due to a loosened EWP coolant hose at the EWP connector. If the vehicle continues to be driven in this condition, a "Refill coolant" warning message may appear in the instrument cluster, followed by reduced heater performance. The retainer clip on the EWP coolant hose on the vehicle is positioned horizontally on the hose which may come loose after time. The improved coolant hose has the retainer clip rotated 90 degrees to be positioned vertically.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_ELE332 | Service bulletin | Apr 3, 2024 | 10252802 | PDF, 251 KB |
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 84 complaints with NHTSA since 2015. 31 of them name Electrical System, Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
I am experiencing the same issues as the individual who documented incident #11685147. When I turn the shifter to drive and let my foot off the brake, with auto-hold on, the will still roll backwards, even on flat ground, and not respond to me pushing the gas pedal. I have to put the vehicle back into park, and try again.
2023 Kia Niro · Engine · filed with NHTSA Nov 5, 2025 · ODI 11697775
The 12-volt battery system in my 2024 Kia Niro (VIN: ) has suffered two total failures in under one year of ownership (approx. 10,000 miles). In both instances, the vehicle was completely unresponsive, with no power to essential systems. Safety Risks and Incidents: 1. : Vehicle experienced a total power loss.
2024 Kia Niro · Electrical System · filed with NHTSA Jan 7, 2026 · ODI 11709314
Check electric vehicle system warning light indicator illuminates and car stops driving on highway! A/C and defrost won't work properly and when turned on causes the above warning light and malfunction. Car will not charge at "fast" charging stations and will leave you stranded on highway.
2023 Kia Niro · Electrical System · filed with NHTSA Jun 15, 2026 · ODI 11744166
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group30 other manufacturer communications filed against the Kia Niro under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Kia list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_CLI049_R2 | Service bulletin | Aug 28, 2026 | TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR – ELECTRICAL A/C COMPRESSOR - This bulletin has been revised to include additional information. N… |
| TSB_ELE426 | Service bulletin | Aug 19, 2026 | TECHNICAL SERVICE BULLETIN: AVN GEN 5.0 WIDE SOFTWARE UPDATE - This bulletin provides information on the Audio Video Navigation (AVN) system… |
| PI2603Y | Service bulletin | Jul 8, 2026 | TECHNICAL SERVICE BULLETIN: BSA REPLACEMENT (PI2603Y) - This bulletin provides information related to the Technical Service Bulletin previou… |
| PI2603 | Other | Jun 17, 2026 | TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: BMS BATTERY DIAGNOSTIC LOGIC IMPROVEMENT (PI2603) - This bulletin provides inform… |
| TSB_ELE422 | Service bulletin | May 28, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE. KIA. COM - This bulletin provides information and service proc… |
| TSB_ELE417 | Service bulletin | Apr 14, 2026 | TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infot… |
| TSB_ELE394 | Service bulletin | Mar 26, 2026 | TECHNICAL SERVICE BULLETIN: AVN5.0W DTC P17A000 DAIGNOSTIC PROCEDURE - This bulletin provides information regarding a potential illuminated… |
| SA619 | Service bulletin | Jul 29, 2025 | TECHNICAL SERVICE BULLETIN: SERVICE ACTION: AVN SOFTWARE UPDATE FOR OTA INSTALLATION (SA619) - This bulletin provides the procedure to insta… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Kia, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Kia TSB_ELE332 a recall?
No. A service bulletin 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 TSB_ELE332 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Kia warranty extension on file lists the ones Kia has filed.
Which vehicles does TSB_ELE332 cover?
The manufacturer filed it against 2 model years: 2024 Kia Niro, 2023 Kia Niro. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2023-2024MY Niro EV (SG2 EV): built 11 Jul 2022 – 24 Jan 2024; Niro EV (SG2 EV): built 11 Jul 2022 – 24 Jan 2024 — the build date is on the certification label in the driver’s door jamb.