# Service bulletins for the 2021 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.

129 bulletins from NHTSA, as of 2026-10-19.

- [26\-EM\-015H TSB](/bulletins/11038456.md), 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.
- [26\-EM\-017H TSB](/bulletins/11038430.md), 2026-10-09, Service bulletin: ENGINE. Certain Palisade \(LX2\) and Santa Fe \(NC\) vehicles equipped with Lambda II 6\-cylinder engines may exhibit higher\-than\-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26\-EM\-015H, Engine Oil Consumption – Inspection \& Repair Guidelines, or the latest revision.
- [Z05 OL](/bulletins/11037233.md), 2026-09-09, Warranty extension: UNKNOWN OR OTHER. Certain vehicles may exhibit excessive paint peeling or bubbling of the primer/paint film on the exterior metal body panels: hood, fender\(s\), roof, door\(s\), quarter panel\(s\), and tailgate/trunk. This warranty extension only applies to factory\-applied paint and does not cover collision\-related paint repairs or vehicles with a salvaged title. Hyundai is extending the warranty coverage for certain white paint colors under these conditions from 3 years and 36,000 miles, to 10 years with unlimited miles from the date of original retail delivery or date of first use, and is valid for original and subsequent owners.
- [Z15 OL](/bulletins/11036207.md), 2026-08-15, Warranty extension: ENGINE. Certain 2020 – 2025 model year Palisade vehicles may exhibit engine oil leakage at the engine oil filter housing assembly due to deterioration of the housing seal. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the Engine Oil Filter Housing Seal under these conditions has been extended to 15 years/180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners.
- [Z12 OL](/bulletins/11035035.md), 2026-07-17, Warranty extension: SUSPENSION. Certain 2020 – 2024 model year Palisade vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn rear self\-leveling shock absorbers. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, Hyundai is extending warranty coverage for the self\-leveling rear shock absorbers under this condition to 10 years / 120,000 miles \(whichever occurs first\) from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
- [26\-EE\-007H TSB](/bulletins/11034027.md), 2026-06-23, Service bulletin: ELECTRICAL SYSTEM. Some Palisade \(LX2\), Tucson \(NX4\), and Tucson Hybrid \(NX4 HEV\) vehicles may experience battery drain due to continuous operation of the cooling fan after vehicle ignition has been turned off, potentially resulting in a no\-start condition. The continuous cooling fan operation is caused by a stuck relay in the engine room PCB block. This bulletin provides instructions to replace the engine room PCB block to ensure the proper operation of the cooling fan.
- [26\-SS\-001H TSB](/bulletins/11033836.md), 2026-06-16, Warranty extension: SUSPENSION. Certain Palisade \(LX2\) vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn self\-leveling rear shock absorbers. Hyundai is extending the warranty coverage for the self\-leveling rear shock absorbers to 10 years/120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the procedure in the bulletin to identify the source of the noise, and if necessary, replace one or both self\-leveling rear shock absorbers. Please note that for the first repair, replacement of both rear shock absorbers will be covered by this warranty extension. For subsequent repairs, one or both rear shock absorbers will be covered depending upon the impacted side\(s\).
- [26\-TC\-001H](/bulletins/11033709.md), 2026-06-06, Service bulletin: SUSPENSION. Some Palisade \(LX2\) vehicles may produce noise from AWD coupling vibrations when making turns caused by a logic error with the All Wheel Drive Electronic Control Unit \(AWD ECU\). This bulletin provides instructions to update the AWD ECU to reduce the coupling noise.
- [26\-EM\-012H DCS](/bulletins/11033708.md), 2026-06-06, Warranty extension: ENGINE. Some Palisade \(LX2\) vehicles may exhibit engine oil leakage at the engine oil filter housing assembly due to deterioration of the housing seal. Hyundai is extending the warranty coverage for the engine oil filter housing seal to 15 years / 180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the procedure in Technical Service Bulletin \(TSB\) 26\-EM\-012H to replace the engine oil filter housing seal in order to address this condition. Please note that any vehicles within 15 years / 180,000 miles are covered by this TSB, even if the vehicle is still within the New Vehicle Limited Warranty \(NVLW\) of 5 years / 60,000 miles or Powertrain Warranty of 10 years / 100,000 miles \(for the original owner\).
- [26\-EM\-012H DN](/bulletins/11033707.md), 2026-06-06, Warranty extension: ENGINE. Some Palisade \(LX2\) vehicles may exhibit engine oil leakage at the engine oil filter housing assembly due to deterioration of the housing seal. Hyundai is extending the warranty coverage for the engine oil filter housing seal to 15 years / 180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Please note any vehicles within 15 years / 180,000 miles are covered by this TSB, even if the vehicle is still within the New Vehicle Limited Warranty \(NVLW\) of 5 years / 60,000 miles or Powertrain Warranty of 10 years / 100,000 miles \(for the original owner\).
- [26\-EM\-012H TSB](/bulletins/11033706.md), 2026-06-06, Warranty extension: ENGINE. Some Palisade \(LX2\) vehicles may exhibit engine oil leakage at the engine oil filter housing assembly due to deterioration of the housing seal. Hyundai is extending the warranty coverage for the engine oil filter housing seal to 15 years / 180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the procedure in this bulletin to replace the engine oil filter housing seal in order to address this condition.
- [26\-SS\-001H DCS](/bulletins/11033704.md), 2026-06-06, Warranty extension: SUSPENSION. Certain Palisade \(LX2\) vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn self\-leveling rear shock absorbers. Hyundai is extending the warranty coverage for the self\-leveling rear shock absorbers to 10 years/120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the procedure in Technical Service Bulletin \(TSB\) 26\-SS\-001H to identify the source of the noise, and if necessary, replace one or both self\-leveling rear shock absorbers. Please note that for the first repair, replacement of both rear shock absorbers will be covered by this warranty extension. For subsequent repairs, one or both rear shock absorbers will be covered depending upon the impacted side\(s\). Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is within 5 years/60,000 miles.
- [26\-SS\-001H DN](/bulletins/11033703.md), 2026-06-06, Warranty extension: SUSPENSION. Certain Palisade \(LX2\) vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn self\-leveling rear shock absorbers. Hyundai is extending the warranty coverage for the self\-leveling rear shock absorbers to 10 years/120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Please note that any vehicles with Z12 and under 10 years/120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years/60,000 miles.
- [26\-SS\-001H TSB](/bulletins/11033702.md), 2026-06-06, Warranty extension: SUSPENSION. Certain Palisade \(LX2\) vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn self\-leveling rear shock absorbers. Hyundai is extending the warranty coverage for the self\-leveling rear shock absorbers to 10 years/120,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the procedure in the bulletin to identify the source of the noise, and if necessary, replace one or both self\-leveling rear shock absorbers. Please note that for the first repair, replacement of both rear shock absorbers will be covered by this warranty extension. For subsequent repairs, one or both rear shock absorbers will be covered depending upon the impacted side\(s\).
- [26\-BD\-002H TSB](/bulletins/11032529.md), 2026-05-08, Warranty extension: UNKNOWN OR OTHER. Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender\(s\), roof, door\(s\), quarter panel\(s\), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners. The warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a financial institution or insurer or has a branded or similar title under any state’s law.
- [26\-BD\-002H DN](/bulletins/11032528.md), 2026-05-08, Warranty extension: UNKNOWN OR OTHER. Some Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender\(s\), roof, door\(s\), quarter panel\(s\), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
- [DTN DL](/bulletins/11032523.md), 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](/bulletins/11032522.md), 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\-010H DCS](/bulletins/11028665.md), 2026-02-10, Service campaign: ENGINE. Certain Palisade \(LX2\) vehicles equipped with 3.8L GDI Lambda II engines may not meet engine\-out NOx \(Nitrogen Oxides\) and Particulate Matter \(PM\) emission standards. Technical Service Bulletin \(TSB\) 26\-01\-010H provides the service procedure to update the emission logic within the Engine Control Module \(ECM\) to improve engine\-out NOx and PM emissions, so they are within permissible specifications. Additionally, improvements to reduce noise during engine start, and enhanced thermostat logic, are also included in the updated ECM software.
- [26\-01\-010H DN](/bulletins/11028664.md), 2026-02-10, Service campaign: ENGINE. Certain Palisade \(LX2\) vehicles equipped with 3.8L GDI Lambda II engines may not meet engine\-out NOx \(Nitrogen Oxides\) and Particulate Matter \(PM\) emission standards. The service procedure provides an update to the emission logic within the Engine Control Module \(ECM\) to improve engine\-out NOx and PM emissions, so they are within permissible specifications. Additionally, improvements to reduce noise during engine start, and enhanced thermostat logic, are also included in the updated ECM software.
- [26\-01\-010H TSB](/bulletins/11028663.md), 2026-02-10, Service campaign: ENGINE. Certain Palisade \(LX2\) vehicles equipped with 3.8L GDI Lambda II engines may not meet engine\-out NOx \(Nitrogen Oxides\) and Particulate Matter \(PM\) emission standards. This bulletin provides the service procedure to update the emission logic within the Engine Control Module \(ECM\) to improve engine\-out NOx and PM emissions, so they are within permissible specifications. Additionally, improvements to reduce noise during engine start, and enhanced thermostat logic, are also included in the updated ECM software.
- [25\-01\-089H DCS](/bulletins/11027035.md), 2026-01-06, Other: ELECTRICAL SYSTEM. Upon customer's request ONLY, the Technical Service Bulletin \(TSB\) 25\-01\-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti\-theft decals on the front windows. This repair procedure is being provided in addition to the previous Anti\-Theft software provided under Service Campaign 993 \(TSB 24\-01\-009H\-1\).
- [25\-01\-089H DN](/bulletins/11027034.md), 2026-01-06, Other: ELECTRICAL SYSTEM. In addition to the Anti\-Theft software provided under Service Campaign 993 \(TSB 24\-01\-009H\-1\), a zinc reinforced ignition cylinder protector hardware upgrade is being made available to customers upon request. This supplemental security measure is to be installed at the ignition switch location and provides additional protection against the social media theft method. Vehicles not equipped with an immobilizer during production at the factory are eligible. The repair procedure shall be performed and claimed upon customer request only. Any future repairs to these vehicles in which an installed ignition cylinder protector impacts required parts and/or labor, shall be covered by HMA. Please see TSB 25\-01\-089H for details.
- [25\-01\-089H TSB](/bulletins/11027033.md), 2026-01-06, Other: ELECTRICAL SYSTEM. This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti\-theft decals on the front windows.
- [P33 OL](/bulletins/11026704.md), 2025-12-19, Other: ELECTRICAL SYSTEM. In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at authorized Hyundai dealers since early 2023. In addition to the anti\-theft software, we’ve developed a new zinc\-reinforced ignition cylinder protector hardware upgrade that can be installed at the ignition cylinder location to provide additional protection against the social media theft method. Because your Hyundai vehicle with the VIN listed above \(“Subject Vehicle”\) was not factory\-equipped with an engine immobilizer and was previously eligible for the software upgrade, you are now eligible until March 31, 2027 to have the ignition cylinder protector installed — if you request it — at no cost to you through an authorized Hyundai dealership.

More: [the next page](/v1/vehicles/2021_hyundai_palisade/bulletins?cursor=2025-12-19_11026704) (JSON)

JSON: [/v1/vehicles/2021_hyundai_palisade/bulletins](/v1/vehicles/2021_hyundai_palisade/bulletins)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%202021%20Hyundai%20Palisade&page=https%3A%2F%2Fopen.wenmarpro.com%2Fmakes%2Fhyundai%2Fpalisade%2F2021%2Fbulletins&vehicle=2021%20Hyundai%20Palisade)