# Service bulletin 20\-01\-004H \- The

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: 10172224
- Published by NHTSA: 2020\-03\-07
- Manufacturer's number: 20\-01\-004H \- The
- Manufacturer's date: 2020\-02\-18
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172224-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172224-9999.pdf)

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

## Components

Electrical system, Engine, Equipment and accessories, Software

## Trouble codes named

P1326

## Vehicles listed

- 2019 HYUNDAI SANTA FE
- 2013 to 2018 HYUNDAI SANTA FE SPORT
- 2011 to 2012 HYUNDAI SONATA
- 2014 to 2019 HYUNDAI SONATA
- 2014 to 2019 HYUNDAI TUCSON
- 2019 HYUNDAI VELOSTER

## Recalls for the same vehicles and component

- [21V749000](/recalls/nhtsa/21V749000.md), 2021-09-24: ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:TURN SIGNAL
- [16V628000](/recalls/nhtsa/16V628000.md), 2016-08-30: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [22\-01\-043H](/bulletins/10213718.md), 2022-06-10, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE AND ENGINE COOLING. Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System \(CNDS\) software update. CNDS is to detect abnormal cylinder wall scuffing or noise of the engine block before potentially severe engine damage occurs. If abnormal noise is detected, the Malfunction Indicator Lamp \(MIL\) will blink continuously. In addition, DTC P1327 will be recorded in the ECM.
- [21\-01\-023H\-4](/bulletins/10207803.md), 2022-02-08, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. 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.
- [DBP972](/bulletins/10206367.md), 2022-01-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. When asked to provide the Modem Information, the Universal Subscriber Identity Module \(USIM\) may not be available. This TSB\# 21\-01\-080H describes the 3\-part software to correct this condition and activate Blue Link Services.
- [TBB\-DCS160118](/bulletins/10199311.md), 2021-07-19, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Base audio software update.
- [20\-01\-024H\-2](/bulletins/10185445.md), 2021-01-09, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results. Consult the Hyundai Warranty Policy \& Procedures and the below chart to determine New or Reman engine usage.
- [20\-01\-004H\-2](/bulletins/10183957.md), 2020-12-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE AND ENGINE COOLING. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.
- [20\-FL\-006H\-1](/bulletins/10178182.md), 2020-08-07, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. This bulletin provides information related to the Engine Control Module \(ECM\) software logic update for DTC P0300\-P0304 Misfire. This update addresses the intermittent misfire that may only occur at cold engine warmup.
- [20\-BE\-008H](/bulletins/10177130.md), 2020-07-08, Service bulletin: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\); ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information for new software to update the Navigation and Display Audio system to include the Apple CarPlay and Android Auto feature. This bulletin describes how to transfer the update software to a storage drive \(USB or SD Card\) and perform the software installation into the audio system.
- [20\-FL\-006H](/bulletins/10177129.md), 2020-07-08, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE. This bulletin provides information related to the Engine Control Module \(ECM\) software logic update for DTC P0300\-P0304 Misfire. This update addresses an incident of intermittent misfire that may only occur at cold engine warmup.
- [20\-01\-004H\-1](/bulletins/10177126.md), 2020-07-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE. Applicable vehicles with 2.0L Turbo and 2.4L GDI engines may experience the Check Engine warning lamp illuminated with DTC P1326. Follow the procedure to inspect the vehicle and replace the engine or update the engine ECU software based on the inspection results.

JSON: [/v1/bulletins/10172224](/v1/bulletins/10172224)

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