Service bulletins for the 2026 Hyundai Palisade
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.
23 on file from NHTSA, as of 2026-10-19.
| 26-01-026H-1 WebDCS | 2026-08-15. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System" warning message, Engine MIL ON, and/or “Low Engine Oil" warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200, P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. |
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| 26-01-026H-1 TSB | 2026-08-15. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System” warning message, Engine MIL ON, and/or “Low Engine Oil” warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200, P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This bulletin contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
| 26-01-055H DCS | 2026-07-08. ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM. 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. |
| 26-01-034H TSB | 2026-04-08. ELECTRICAL SYSTEM. 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. |
| 26-01-026H DCS | 2026-03-04. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System" warning message, Engine MIL ON, and/or “Low Engine Oil" warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200 P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This Technical Service Bulletin (TSB) 26-01-026H contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
| 26-01-026H TSB | 2026-03-04. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System” warning message, check engine light on, and/or “Low Engine Oil” warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200 P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This bulletin contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.
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| 26-EM-015H TSB | 2026-10-13. Service bulletin. ENGINE. Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level. |
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| 9D4 RE-EML | 2026-09-11. Service campaign. ELECTRICAL SYSTEM. The vehicle may experience Over-The-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. |
| LX3 2026 Postcard | 2026-09-11. Other. SEATS. Updates have been made to your vehicle Owner’s Manual regarding the instructions for the second- and third-row power seat operation. |
| 26-BE-024H TSB | 2026-09-02. Service bulletin. ELECTRICAL SYSTEM. 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. |
| 26-01-026H-1 WebDCS | 2026-08-15. Warranty extension. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System" warning message, Engine MIL ON, and/or “Low Engine Oil" warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200, P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. |
| 26-01-026H-1 TSB | 2026-08-15. Warranty extension. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System” warning message, Engine MIL ON, and/or “Low Engine Oil” warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200, P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This bulletin contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
| 26-01-068H DN | 2026-08-15. Service campaign. ENGINE; ELECTRICAL SYSTEM. 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. ENGINE; ELECTRICAL SYSTEM. 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-EC-001H TSB | 2026-08-11. Service bulletin. ENGINE. Some Palisade Hybrid (LX3 HEV) vehicles may exhibit continuous engine operation due to the vehicle being unable to enter EV/HEV modes. The vehicle may initially start in EV/HEV mode, but will quickly transition to running the engine only and will not revert back to EV/HEV mode. The “EV” light may intermittently flicker on, but the vehicle will not change modes. This bulletin provides instructions to perform the “Evaporative Leakage Test” function on the GDS to enable EV/HEV mode activation. |
| 26-01-055H DCS | 2026-07-08. Warranty extension. ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM. 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. |
| 26-01-034H-1 TSB | 2026-05-08. Service campaign. ELECTRICAL SYSTEM. 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. |
| DTN DL | 2026-05-08. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians. |
| DTN DCS | 2026-05-08. Other. AIR BAGS. The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details. |
| 26-01-035H TSB | 2026-04-15. Service campaign. ELECTRICAL SYSTEM. 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. ELECTRICAL SYSTEM. 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. |
| 26-01-026H DCS | 2026-03-04. Warranty extension. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System" warning message, Engine MIL ON, and/or “Low Engine Oil" warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200 P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This Technical Service Bulletin (TSB) 26-01-026H contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
| 26-01-026H TSB | 2026-03-04. Warranty extension. ENGINE. Certain Palisade (LX3) and Palisade Hybrid (LX3 HEV) vehicles may exhibit a “Check Active Air Flap System” warning message, check engine light on, and/or “Low Engine Oil” warning message, due to improper operation of the Active Air Flap (AAF) system. DTCs include, but are not limited to: P05AE00, P05B100, P05B200 P05B400, P05FE00, P15A200, P15A500, P2C7400, U028500, U028B00, and/or U100800. This condition may be caused by water ingress and corrosion at the wiring connections for the lower AAF actuators and/or sensors. This bulletin contains instructions to inspect the front bumper wiring connectors, AAF actuators, and sensors for water ingress and corrosion, and to replace them if necessary. |
| 26-01-021H DCS | 2026-03-04. Service campaign. ENGINE. Certain Palisade Hybrid (LX3 HEV) vehicles equipped with the 2.5T-GDI HEV engine may set DTC P050500/P050600. Technical Service Bulletin (TSB) 26-01-021H provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition. |
| 26-01-021H TSB | 2026-03-04. Service campaign. ENGINE. Certain Palisade Hybrid (LX3 HEV) vehicles equipped with the 2.5T-GDI HEV engine may set DTC P050500/P050600. This bulletin provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition. |
| 25-BD-012H TSB | 2025-11-12. Service bulletin. EXTERIOR LIGHTING. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.