# Service bulletin 22\-01\-028H

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: 10210205
- Published by NHTSA: 2022\-04\-08
- Manufacturer's number: 22\-01\-028H
- Manufacturer's date: 2022\-03\-08
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

Hyundai is conducting a campaign to enhance the knock sensor software to detect abnormal engine bearing noise before potentially severe engine damage occurs. If abnormal engine bearing noise is detected, the Malfunction Indicator Lamp \(MIL\) will blink continuously, and the vehicle will be placed in Engine Protection Mode allowing the customer to drive to the nearest Hyundai dealer for diagnosis and repair. In addition, DTC P132600 will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Engine Protection Mode, but it will accelerate slower and have a reduced maximum speed. Engine RPMs will be limited to approximately 1800\-2000 RPM.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210205-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210205-9999.pdf)

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

## Components

Electrical system, Engine

## Trouble codes named

P1326

## Vehicles listed

- 2014 to 2016 HYUNDAI ELANTRA
- 2014 to 2016 HYUNDAI ELANTRA GT
- 2017 to 2019 HYUNDAI ELANTRA GT
- 2010 to 2012 HYUNDAI SANTA FE
- 2011 to 2019 HYUNDAI SONATA HYBRID
- 2016 to 2019 HYUNDAI SONATA PLUG\-IN HYBRID
- 2010 to 2018 HYUNDAI TUCSON
- 2012 to 2017 HYUNDAI VELOSTER

## Recalls for the same vehicles and component

- [2023104](/recalls/tc/2023104.md), 2023-03-01: Electrical
- [2023102](/recalls/tc/2023102.md), 2023-02-28: Electrical
- [23V132000](/recalls/nhtsa/23V132000.md), 2023-02-28: ELECTRICAL SYSTEM
- [2022244](/recalls/tc/2022244.md), 2022-05-08: Engine
- [2022107](/recalls/tc/2022107.md), 2022-03-10: Engine
- [2021674](/recalls/tc/2021674.md), 2021-11-04: Engine
- [2021612](/recalls/tc/2021612.md), 2021-10-01: Engine
- [21V749000](/recalls/nhtsa/21V749000.md), 2021-09-24: ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:TURN SIGNAL
- [2021575](/recalls/tc/2021575.md), 2021-09-17: Engine
- [2021573](/recalls/tc/2021573.md), 2021-09-17: Engine

## Other bulletins for the same vehicles and component

- [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\-EM\-014H TSB](/bulletins/11037434.md), 2026-09-22, Service bulletin: ENGINE; ELECTRICAL SYSTEM. Some Tucson \(TL\) vehicles equipped with a 2.0L engine may exhibit a continued DTC P132600 after an ECM logic update has been performed per TSB 24\-01\-068H, Engine Monitoring Logic \(Service Campaign 966\). This bulletin provides instructions to inspect and resolve other engine mechanical issues and if DTC P132600 remains, then a procedure and manual mode passwords are given to perform the update again in manual mode to resolve this condition.
- [9C2 060518](/bulletins/11033705.md), 2026-06-06, Service campaign: ENGINE; ELECTRICAL SYSTEM. Following completion of Service Campaign 9C2 \(Theta II Emissions Improvement\), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only within approximately the first 1\-3 minutes after engine start, while the catalyst is reaching its normal operating temperature.
- [9C2 DCS 260518](/bulletins/11033701.md), 2026-06-06, Service campaign: ELECTRICAL SYSTEM; ENGINE. Following completion of Service Campaign 9C2 \(Theta II Emissions Improvement\), certain vehicles may exhibit a brief hesitation or rough shifting condition during cold start operation. If present, this condition is expected to occur only within approximately the first 1\-3 minutes after engine start, while the catalyst is reaching its normal operating temperature.
- [26\-01\-013H\-2 DN](/bulletins/11033700.md), 2026-06-06, Service campaign: ELECTRICAL SYSTEM; ENGINE. Certain Santa Fe \(TMA\), Santa Fe Sport \(AN\), Sonata \(LFA\), and Tucson \(TL\) vehicles equipped with Theta II engines may exhibit elevated engine\-out emissions. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
- [26\-01\-013H\-2 TSB](/bulletins/11033699.md), 2026-06-06, Service campaign: ENGINE; ELECTRICAL SYSTEM. Certain Santa Fe \(TMA\), Santa Fe Sport \(AN\), Sonata \(LFA\), and Tucson \(TL\) vehicles equipped with Theta II engines may exhibit elevated engine\-out emissions. This bulletin provides instructions for updating the Engine Control Module \(ECM\) to address this condition.
- [Z01 Letter](/bulletins/11033679.md), 2026-06-06, Warranty extension: AIR BAGS; ELECTRICAL SYSTEM. Certain 2012 – 2017 model year Accent, 2012 – 2017 model year Azera, 2013 – 2018 model year Santa Fe Sport, 2013 – 2019 model year Santa Fe, and 2012 – 2017 model year Veloster vehicles may exhibit an intermittent airbag warning light and diagnostic trouble codes \(DTCs\) may be set. 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 Occupant Classification System \(OCS\)/Occupant Detection System \(ODS\) under these conditions has been extended to 18 years/unlimited mileage from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners.
- [26\-BE\-011H DN](/bulletins/11032526.md), 2026-05-08, Warranty extension: AIR BAGS; ELECTRICAL SYSTEM. Some vehicles listed below may exhibit an intermittent airbag warning light and DTC\(s\) B1763 \(OCS ECU Defect\), and/or B1764 \(OCS Mat Defect\) may be stored. Hyundai is extending the warranty coverage of the sensor for the Occupant Classification System \(OCS\) / Occupant Detection System \(ODS\) to 18 years/unlimited mileage from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Refer to the warranty and parts information outlined in this bulletin.
- [26\-BE\-011H TSB](/bulletins/11032525.md), 2026-05-08, Warranty extension: ELECTRICAL SYSTEM; AIR BAGS. Some vehicles listed below may exhibit an intermittent airbag warning light and DTC\(s\) B1763 \(OCS ECU Defect\), and/or B1764 \(OCS Mat Defect\) may be stored. Hyundai is extending the warranty coverage of the sensor for the Occupant Classification System \(OCS\) / Occupant Detection System \(ODS\) to 18 years/unlimited mileage from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Refer to the warranty and parts information outlilned in this bulletin. This bulletin contains the procedure to inspect for the airbag warning light and DTC\(s\), replace the OCS \(ODS\) unit or wire harness, reset the OCS \(ODS\), and initialize the power seat module \(if applicable\). This TSB also contains the procedure to replace the OCS \(ODS\) mat if DTCs exist after replacement of the OCS \(ODS\) wire harness.

JSON: [/v1/bulletins/10210205](/v1/bulletins/10210205)

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