Hyundai service campaign 9D8
What it saysCertain Palisade Hybrid (LX3 HEV) vehicles may display a Hybrid system warning light on the instrument cluster with Diagnostic Trouble Code (DTC) P0C381C when the vehicle is parked for long durations. NHTSA’s full summary ↓
Hyundai filed this with NHTSA as a service campaign dated Oct 1, 2026, received Oct 8, 2026, about the electrical system — 3 documents under this number: 26-01-079H DN, 26-01-079H TSB, 26-01-079H DCS. It names 1 model year (2027). A service campaign 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.
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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 Palisade Hybrid (LX3 HEV) vehicles may display a Hybrid system warning light on the instrument cluster with Diagnostic Trouble Code (DTC) P0C381C when the vehicle is parked for long durations. Technical Service Bulletin (TSB) 26-01-079H provides instructions to perform a Hybrid Power Control Unit (HPCU) software update to resolve this condition.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 26-01-079H DN | Service campaign | Oct 1, 2026 | 11038417 | PDF, 512 KB |
| 26-01-079H TSB | Service campaign | Oct 1, 2026 | 11038416 | PDF, 668 KB |
| 26-01-079H DCS | Service campaign | Oct 1, 2026 | 11038415 | PDF, 41 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 1 model year this bulletin names have filed 5 complaints with NHTSA since 2015. 3 of them name Electrical System, Power Train — 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.
"Stop vehicle and check power supply" warning lights accompanied and panic alarm goes off on new 2027 palisade hybrid calligraphy with 72 miles. The passenger rear brake grabs much more than the others which you can barely feel.
2027 Hyundai Palisade · Electrical System · filed with NHTSA Sep 3, 2026 · ODI 11761993
My new 2027 Hyundai Palisade Hybrid experienced a hybrid-system/power-supply malfunction with fewer than 500 miles. The Hyundai dealer diagnosed DTC P0C381C on August 28, 2026 and has retained the vehicle since that date.
2027 Hyundai Palisade · Electrical System · filed with NHTSA Sep 9, 2026 · ODI 11763202
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 group26 other manufacturer communications filed against the Hyundai Palisade under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Hyundai list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 9D4 | Service campaign | Sep 1, 2026 | Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Comm… |
| LA39 | Warranty extension | Aug 29, 2026 | Some Palisade Hybrid (LX3 HEV) vehicles may illuminate the hybrid system warning light with Diagnostic Trouble Codes (DTC) P0C381C when the… |
| 26-BE-024H | Service bulletin | Aug 20, 2026 | Some Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digit… |
| LA28 | Warranty extension | Jul 2, 2026 | Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” war… |
| 26-BE-012H | Service bulletin | Jun 18, 2026 | Some Palisade (LX2) vehicles may display a “Check forward safety systems” warning message on the cluster along with DTC C272246, due to the… |
| 26-EE-007H | Service bulletin | Jun 17, 2026 | Some Palisade (LX2), Tucson (NX4), and Tucson Hybrid (NX4 HEV) vehicles may experience battery drain due to continuous operation of the cool… |
| 26-GI-002H | Service bulletin | May 27, 2026 | This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and So… |
| 9C0 | Service campaign | Apr 8, 2026 | Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasiona… |
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 9D8 a recall?
No. A service campaign 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 9D8 repair free?
A service campaign 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 9D8 cover?
The manufacturer filed it against 1 model year: 2027 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: built 1 Jun 2026 – 1 Jul 2026; built 26 May 2026 – 1 Jul 2026 — the build date is on the certification label in the driver’s door jamb.