Hyundai bulletin 23-EM-003H
What it saysCertain 2020-2022MY Palisade (LX2) vehicles may exhibit a slight coolant leak at the radiator. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service bulletin dated Aug 3, 2023, received Sep 5, 2023, about the engine. It names 3 model years (2020–2022). 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.
Certain 2020-2022MY Palisade (LX2) vehicles may exhibit a slight coolant leak at the radiator. Follow the procedure outlined in this bulletin to inspect and replace the radiator to correct the condition, if necessary.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23-EM-003H | Service bulletin | Aug 3, 2023 | 10241799 | PDF, 488 KB |
What the document itself lists
The manufacturer titles it “RADIATOR COOLANT LEAK REPAIR”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 25310-S8700FFF | Assembly | — | eBay Motors → |
| 00232-19098 | Gallon | — | eBay Motors → |
Read by machine from the document NHTSA serves (5 pages), read Sep 30, 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 radiator assembly for the 2022 Palisade →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 3 model years this bulletin names have filed 1,308 complaints with NHTSA since 2015. 259 of them name 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.
On the 2020 Hyundai Palisade, the 15 owners who gave an odometer reading for Engine reported it at a median of 25,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
The engie restarted itself after being shut off and no key was near vehicle and continued to run overnight, filing car with carbon monoxide. Hyundai service department was contacted and said no inspection was need but to monitor car and contact Hyundai customer line and advise. The reference case number is 20244323
2022 Hyundai Palisade · Engine · filed with NHTSA Aug 30, 2022 · ODI 11481948
In depth: 2022 Hyundai Palisade engine problems → · 2021 Hyundai Palisade engine problems → · 2020 Hyundai Palisade engine 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 engine
Source: same model, same component group10 other manufacturer communications filed against the Hyundai Palisade under the same component group (engine), newest first. The eight newest are listed; the rest are on the Hyundai list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 26-EM-017H | Service bulletin | Oct 8, 2026 | Certain Palisade (LX2) and Santa Fe (NC) vehicles equipped with Lambda II 6-cylinder engines may exhibit higher-than-expected engine oil con… |
| 26-EM-015H | Service bulletin | Oct 7, 2026 | Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides t… |
| LA13 | Warranty extension | Aug 11, 2026 | Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System" warning message, Engine MIL ON, a… |
| 9D6 | Service campaign | Aug 6, 2026 | Certain Palisade (LX3) vehicles may exhibit an engine misfire condition which may result in one or more of the DTCs listed below. This updat… |
| Z15 | Warranty extension | Aug 3, 2026 | Some Palisade (LX2) vehicles may exhibit engine oil leakage at the engine oil filter housing assembly due to deterioration of the housing se… |
| 26-EC-001H | Service bulletin | Jul 30, 2026 | Some Palisade Hybrid (LX3 HEV) vehicles may exhibit continuous engine operation due to the vehicle being unable to enter EV/HEV modes. The v… |
| LA16 | Service campaign | Feb 24, 2026 | Certain Palisade Hybrid (LX3 HEV) vehicles equipped with the 2.5T-GDI HEV engine may set DTC P050500/P050600. Technical Service Bulletin… |
| 9C9 | Service campaign | Feb 21, 2026 | Certain Palisade (LX2) vehicles equipped with 3.8L GDI Lambda II engines may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matte… |
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 23-EM-003H 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 23-EM-003H 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 23-EM-003H cover?
The manufacturer filed it against 3 model years: 2022 Hyundai Palisade, 2021 Hyundai Palisade, 2020 Hyundai Palisade. 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: 2020-2022MY Palisade (LX2): built 11 Apr 2019 – 9 May 2022 — the build date is on the certification label in the driver’s door jamb.