Hyundai bulletin 26-EV-008H
What it saysSome IONIQ 5 (NE EV) and IONIQ 6 (CE EV) vehicles may exhibit a vibration noise coming from the battery system assembly (BSA) lower cover. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service bulletin dated Oct 21, 2026, received Oct 26, 2026, about the structure. It names 6 model years (2022–2025). 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 communicationSome IONIQ 5 (NE EV) and IONIQ 6 (CE EV) vehicles may exhibit a vibration noise coming from the battery system assembly (BSA) lower cover. This may be caused by the lower cover becoming loose around the center mounting bolts. Follow the procedure in this bulletin to replace the mounting bolts and install cup washers with each bolt to hold the cover in place and resolve the noise on affected vehicles.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26-EV-008H | Service bulletin | Oct 21, 2026 | 11038688 | PDF, 420 KB |
What the document itself lists
The manufacturer titles it “BSA LOWER COVER VIBRATION NOISE – MOUNTING BOLT”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 37535-GI050 | Short range | — | eBay Motors → |
| 37535-KL000 | IONIQ 6 (CE EV) | — | eBay Motors → |
| 37550-GI000FFF | Washer-Cup | — | eBay Motors → |
Read by machine from the document NHTSA serves (5 pages), read Oct 28, 2026. A part number is shown only where it matches Hyundai’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2024 Ioniq 5 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 6 model years this bulletin names have filed 1,152 complaints with NHTSA since 2015. 845 of them name Electrical System — 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.
On the 2022 Hyundai Ioniq 5, the 20 owners who gave an odometer reading for Electrical System reported it at a median of 22,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The contact owns a 2022 Hyundai Ioniq 5. The contact stated while driving 59 MPH, a warning message advising to stop the vehicle due to low battery was displayed; however, the main battery was fully charged. The instrument panel lights turned off and the vehicle decelerated to 23 MPH. The contact veered to the right lane.
2022 Hyundai Ioniq 5 · Electrical System · filed with NHTSA Feb 22, 2023 · ODI 11508521
ICCU failure. EV car flashed battery issues and could not drive. ICCU and 12 volt battery replaced after 10 days in dealership shop. Manufacturer inspected. Prior to issue electric hatchback closed half way then stalled. I drove to the dealership and asked them to check if there was something wrong.
2023 Hyundai Ioniq 6 · Electrical System · filed with NHTSA Jul 12, 2025 · ODI 11672992
After several days of below freezing temps, started car after work and received "check electrical systems" warning. Couldn't drive above 15-25 mph. Eventually led to total shutdown, could not start, lock/unlock doors, etc. Had to tow to dealer which they eventually deemed the ICCU to be at fault.
2024 Hyundai Ioniq 6 · Electrical System · filed with NHTSA Feb 23, 2026 · ODI 11719954
In depth: 2024 Hyundai Ioniq 5 electrical problems → · 2023 Hyundai Ioniq 5 electrical problems → · 2022 Hyundai Ioniq 5 electrical problems →
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 structure
Source: same model, same component group6 other manufacturer communications filed against these Hyundai models under the same component group (structure), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 24-BD-012H-1 | Service bulletin | Dec 12, 2024 | Certain IONIQ 5 (NE EV) and IONIQ 5 N (NE EV N) vehicles may exhibit rattle and friction noises from the tailgate while driving. This bullet… |
| 24-BD-009H | Service bulletin | Dec 11, 2024 | Certain IONIQ 5 (NE1) vehicles may exhibit lifting/separation on the spoiler molding(s) by the Center High Mount Stop Lamp (CHMSL). This bul… |
| 24-BD-013H | Service bulletin | Dec 7, 2024 | This bulletin provides instructions to replace the charging door for certain IONIQ 5 (NE EV) vehicles that may experience excessive rear gap… |
| 24-BD-012H | Service bulletin | Oct 11, 2024 | Certain IONIQ 5 (NE EV) vehicles may exhibit rattle and friction noises from the tailgate while driving. This bulletin provides instructions… |
| 23-BD-006H-1 | Service bulletin | Sep 26, 2023 | This bulletin describes the procedure to repair a tailgate that exhibits a rattle noise while driving. The repair procedure involves instal… |
| 23-BD-007H | Service bulletin | Apr 24, 2023 | Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and co… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Hyundai, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Hyundai 26-EV-008H 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 26-EV-008H 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 Hyundai warranty extension on file lists the ones Hyundai has filed.
Which vehicles does 26-EV-008H cover?
The manufacturer filed it against 6 model years: 2024 Hyundai Ioniq 5, 2023 Hyundai Ioniq 5, 2022 Hyundai Ioniq 5, 2025 Hyundai Ioniq 6, 2024 Hyundai Ioniq 6, 2023 Hyundai Ioniq 6. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.