# P1326 on the 2017 Hyundai Sonata

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P1326

- [11030331](https://open.wenmarpro.com/bulletins/11030331), 2026-03-31: This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22\-01\-023H\-2 \(DTC P1326 – Engine Bearing Inspection/Engine Replacement\) or the latest version.
- [11030330](https://open.wenmarpro.com/bulletins/11030330), 2026-03-30: This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22\-01\-023H \(DTC P1326 – Engine Bearing Inspection/Engine Replacement\) or the latest version.
- [11006829](https://open.wenmarpro.com/bulletins/11006829), 2024-09-03: 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.
- [10227320](https://open.wenmarpro.com/bulletins/10227320), 2022-12-07: Certain vehicles may experience the Check Engine warning lamp illuminated with DTC P1326 and/or engine may exhibit abnormal noise, or no crank/no start condition related to connecting rod bearing wear or damage. This Dealer Best Practice outlines the service process to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results, as well as related warranty coverage for the conditions outlined above.
- [10227317](https://open.wenmarpro.com/bulletins/10227317), 2022-12-07: Certain vehicles listed below may experience the Check Engine warning lamp illuminated with DTC P1326 and/or an engine concern/noise related to connecting rod bearing wear or damage. Follow the procedure to inspect the vehicle and replace the engine and/or update the engine ECU software \(if new ROM is available\) based on the inspection results.
- [10211669](https://open.wenmarpro.com/bulletins/10211669), 2022-05-10: Applicable vehicles with 2.0L T\-GDI and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326 and/or engine may exhibit Abnormal Noise or No Crank/No Start condition. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
- [10211668](https://open.wenmarpro.com/bulletins/10211668), 2022-05-10: 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.
- [10211667](https://open.wenmarpro.com/bulletins/10211667), 2022-05-10: 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.
- [10211666](https://open.wenmarpro.com/bulletins/10211666), 2022-05-10: Certain vehicles listed below may experience the Check Engine warning lamp illuminated with DTC P1326 and/or an engine concern/noise related to connecting rod bearing wear or damage. Follow the procedure to inspect the vehicle and replace the engine and/or update the engine ECU software \(if new ROM is available\) based on the inspection results.
- [10211665](https://open.wenmarpro.com/bulletins/10211665), 2022-05-10: Certain vehicles with 2.0L T\-GDI and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326 and/or engine may exhibit abnormal noise or no crank/no start condition related to connecting rod bearing wear or damage. This Dealer Best Practice outlines the service procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results, as well as related warranty coverage for the conditions outlined above.