# Service bulletin 23\-FL\-001H

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: 10232200
- Published by NHTSA: 2023\-03\-02
- Manufacturer's number: 23\-FL\-001H
- Manufacturer's date: 2023\-02\-27
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

This bulletin provides information related to the Engine Control Module \(ECM\) software update for Santa Fe Hybrid \(TM HEV\) / Santa Fe Plug\-In Hybrid \(TM PHEV\) vehicles to revise the following DTC logic: • P1441\(PCSV rear and hose missing\) • P1A77\(HSG Belt slip\) • P00B7\(Excessive ITM motor operating current\) • P2118 \(ETC target position failure\) • P0401 \(EGR gas flow insufficient\) • P0236 \(Turbocharger boost sensor range abnormal\) • P0299 \(Turbocharger boost pressure too low\)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10232200-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10232200-9999.pdf)

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

## Components

Electrical system, Engine

## Trouble codes named

P00B7, P0236, P0299, P0401, P1441, P1A77, P2118

## Vehicles listed

- 2021 HYUNDAI SANTA FE HYBRID

## Recalls for the same vehicles and component

- [2023147](/recalls/tc/2023147.md), 2023-03-17: Electrical
- [2022727](/recalls/tc/2022727.md), 2022-12-16: Electrical

## 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\-BE\-001H\-2 DCS](/bulletins/11038179.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 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. If a horn needs to be replaced, follow the instructions within this Technical Service Bulletin \(TSB\)26\-BE\-001H\-2 to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is with original warranty of 5 years/60,000 miles.
- [26\-BE\-001H\-2 TSB](/bulletins/11038173.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 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. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles 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\-EE\-003H TSB](/bulletins/11031400.md), 2026-04-21, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch \(solenoid\) assembly.
- [26\-EM\-005H TSB](/bulletins/11028668.md), 2026-02-10, Service bulletin: ENGINE. Some Santa Fe \(TMA\) vehicles may have DTCs P218100, P2181F0, and/or P2181F1 \(Cooling System Performance\) set in the Electronic Control Unit \(ECU\), resulting in an illuminated Check Engine warning lamp. Follow the procedure in this TSB to replace the Integrated Thermal Management \(ITM\) module and update both the Engine Control Module \(ECM\) and Transmission Control Module \(TCM\) if applicable. Follow the flowchart in this TSB to update the appropriate modules.
- [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 \(TSB 24\-01\-009H\-1\).

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