Service campaign 26-01-034H-1 TSB

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service campaign
NHTSA id	11032530
Published by NHTSA	2026-05-08
Manufacturer's number	26-01-034H-1 TSB
Manufacturer's date	2026-05-01
Campaign id or software version	9D4
NHTSA component	ELECTRICAL SYSTEM

NHTSA's summary

Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. This bulletin provides instructions to perform a software update for the CCU.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
HYUNDAI PALISADE	2026
HYUNDAI PALISADE HYBRID	2026 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V047000	2026-01-26. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
9D4 RE-EML	2026-09-11. Service campaign. The vehicle may experience Over-The-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software.
26-BE-024H TSB	2026-09-02. Service bulletin. Some Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digital Key 2 premium causing repeated wakeup of the vehicle. This bulletin provides instructions to perform software updates for the Ultra-Wide Band (UWB) and Body Domain Control (BDC) modules.
26-01-068H DN	2026-08-15. Service campaign. Certain Palisade (LX3) vehicles may exhibit an engine misfire condition which may result in one or more of the DTCs listed below. This update also includes improved evaporative emissions diagnostic logic.
26-01-068H TSB	2026-08-15. Service campaign. Certain Palisade (LX3) vehicles may exhibit an engine misfire condition which may result in one or more of the DTCs listed below. This update also includes improved evaporative emissions diagnostic logic. This bulletin provides instructions to update the Engine Control Module (ECM) software to correct this condition.
26-01-055H DCS	2026-07-08. Warranty extension. Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. Related DTCs associated with the MIL include U116087, U016487, U100787, U012987, U010087, U100387, U100287, U010187, and U015587. Technical Service Bulletin (TSB) 26-01-055H provides instructions to perform a Vehicle Platform Controller (VPC) software update to prevent these conditions.
26-01-055H TSB	2026-07-08. Warranty extension. Certain Palisade Hybrid (LX3 HEV) vehicles may illuminate the Malfunction Indicator Lamp (MIL) and display a false “Check Hybrid System” warning message after use of Bluelink Remote Start following extended parking periods. This bulletin provides instructions to perform a Vehicle Platform Controller (VPC) software update to prevent these conditions.
9D4 OL	2026-07-08. Service campaign. Hyundai has become aware that your Hyundai Palisade may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software.
26-01-034H-1 DN	2026-05-08. Service campaign. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software.
26-01-035H TSB	2026-04-15. Service campaign. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
26-01-034H TSB	2026-04-08. Warranty extension. Certain Palisade (LX3) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. This bulletin provides instructions to perform a software update for the CCU.