# Service bulletin 23\-01\-042H

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.

- Type: Service bulletin
- NHTSA id: 10237177
- Published by NHTSA: 2023\-06\-02
- Manufacturer's number: 23\-01\-042H
- Manufacturer's date: 2023\-05\-01
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Certain Palisade \(LX2\) and Santa Fe Plug\-In Hybrid \(TM PHEV\) vehicles may have been produced with engine mounting support bracket fasteners that were not tightened to torque specification. Follow the procedure outlined in this bulletin to retighten the indicated fasteners to the correct specified torque values.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237177-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10237177-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- 2023 HYUNDAI PALISADE
- 2023 HYUNDAI SANTA FE PLUG\-IN HYBRID

## Other bulletins for the same vehicles and component

- [26\-01\-081H DCS](/bulletins/11038465.md), 2026-10-14, Service campaign: ENGINE. Certain Santa Fe Hybrid \(TM HEV\), Santa Fe Plug\-in Hybrid \(TM PHEV\), Tucson Hybrid \(NX4 HEV\), andTucson Plug\-in Hybrid \(NX4 PHEV\) vehicles may experience intake air line freezing and Exhaust GasRecirculation \(EGR\) valve corrosion due to excessive condensation accumulating within the EGR system.This condition can lead to drivability concerns related to the following DTCs: \- P040400: \(Exhaust Gas Recirculation Control Circuit Range\) \- P049D00: \(EGR 'A' Control Position Exceeded Learning Limit\) \- P047100: \(Exhaust Pressure Sensor 'A' Circuit Range/Performance\) \- P012800: Coolant Thermostat \(Coolant Temperature below Thermostat Regulation Temperature\) \- P262B00: \(Control Module Power Off Timer Performance\) \- P050C00: Cold Start Engine Coolant Temperature Performance \- P1DFD00: \(EVAP System Purge Pump Target Speed\) \- P2DFD00: \(EVAP System Purge Pump Performance\) \- P112000: \(Inlet Metering Valve – Malfunction\) \- P033500: \(Crankshaft Position Sensor A\)
- [26\-EM\-016H TSB](/bulletins/11038458.md), 2026-10-14, Service bulletin: ENGINE. Some vehicles equipped with internal combustion 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.
- [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\-01\-081H TSB](/bulletins/11038433.md), 2026-10-09, Service campaign: ENGINE. Certain Santa Fe Hybrid \(TM HEV\), Santa Fe Plug\-in Hybrid \(TM PHEV\), Tucson Hybrid \(NX4 HEV\), and Tucson Plug\-in Hybrid \(NX4 PHEV\) vehicles may experience intake air line freezing and Exhaust Gas Recirculation \(EGR\) valve corrosion due to excessive condensation accumulating within the EGR system. This condition can lead to drivability concerns related to the following DTCs: • P040400: \(Exhaust Gas Recirculation Control Circuit Range\) • P049D00: \(EGR 'A' Control Position Exceeded Learning Limit\) • P047100: \(Exhaust Pressure Sensor 'A' Circuit Range/Performance\) • P012800: Coolant Thermostat \(Coolant Temperature below Thermostat Regulation Temperature\) • P262B00: \(Control Module Power Off Timer Performance\) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: \(EVAP System Purge Pump Target Speed\) • P2DFD00: \(EVAP System Purge Pump Performance\) • P112000: \(Inlet Metering Valve – Malfunction\) • P033500: \(Crankshaft Position Sensor A\) The bulletin below provides instructions to perform a software update for the Engine Control Module \(ECM\).
- [26\-01\-081H DN](/bulletins/11038432.md), 2026-10-09, Service campaign: ENGINE. Certain Santa Fe Hybrid \(TM HEV\), Santa Fe Plug\-in Hybrid \(TM PHEV\), Tucson Hybrid \(NX4 HEV\), and Tucson Plug\-in Hybrid \(NX4 PHEV\) vehicles may experience intake air line freezing and Exhaust Gas Recirculation \(EGR\) valve corrosion due to excessive condensation accumulating within the EGR system. This condition can lead to drivability concerns related to the following DTCs: • P040400: \(Exhaust Gas Recirculation Control Circuit Range\) • P049D00: \(EGR 'A' Control Position Exceeded Learning Limit\) • P047100: \(Exhaust Pressure Sensor 'A' Circuit Range/Performance\) • P012800: Coolant Thermostat \(Coolant Temperature below Thermostat Regulation Temperature\) • P262B00: \(Control Module Power Off Timer Performance\) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: \(EVAP System Purge Pump Target Speed\) • P2DFD00: \(EVAP System Purge Pump Performance\) • P112000: \(Inlet Metering Valve – Malfunction\) • P033500: \(Crankshaft Position Sensor A\)
- [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.
- [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.
- [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.

JSON: [/v1/bulletins/10237177](/v1/bulletins/10237177)

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