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Service bulletin 5NP-A3B9D-12

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10151888
Published by NHTSA2018-12-17
Manufacturer's number5NP-A3B9D-12
Manufacturer's date2018-11-08
NHTSA componentPOWER TRAIN

NHTSA's summary

Hyundai has launched a Product Improvement Campaign to perform a knock sensor software update on the subject vehicles. The software update installs a newly developed Knock Sensor Detection System (KSDS) that detects vibrations indicating the onset of excessive connecting rod bearing wear in the engine. The KSDS is designed to alert a vehicle driver at an early stage of bearing wear before the occurrence of engine damage. If vibrations caused by bearing wear start to occur, the Malfunction Indicator Lamp (MIL) will blink continuously, an audible chime will sound, and the vehicle will be placed in Limp Home Mode. At that time, Diagnostic Trouble Code (DTC) P132600, specific to the KSDS, will be recorded in the ECM. The vehicle can continue to be operated for a limited time in Limp Home Mode, but it will accelerate slowly and have a reduced maximum speed with RPMs limited to approximately 1800-2000 RPM.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Trouble codes named

P1326

Vehicles listed
HYUNDAI SANTA FE SPORT2015
HYUNDAI SONATA2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
14V7840002014-12-09. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
24-AT-002H2024-04-16. Service bulletin. This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2.
23-01-054H2023-10-02. Service bulletin. Certain 2013-2015MY Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. TSB 23-01-054H outlines the service process to inspect the fuse and safety plug assembly, and replace the parts as needed. This best practice provides helpful tips and key notes when carrying out this service campaign.
23-01-054H2023-10-02. Service bulletin. Certain Sonata Hybrid (YF HEV) vehicles may exhibit warning lights on while driving and the inability to restart the ignition after it has been turned off when stopped. This bulletin provides the procedure to inspect the safety plug and fuse and replace parts as necessary.
23-01-014H-52023-09-06. Service bulletin. Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response to an increase in thefts of certain 2011-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be updated with the software (Campaign 993), Hyundai is offering customers steering wheel locks at the dealer (Campaign P32). This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock ant-theft solutions available from HMA through Hyundai dealers.
23-HC-001H2023-07-01. Service bulletin. On certain Sonata hybrid (YF HEV) vehicles, the HEV safety plug or power relay assembly (PRA) may cause the following symptoms and one or more current related DTCs. Follow the Service Procedure before diagnosing the hybrid battery. Please review the following instructions carefully to determine applicability depending on the model year of your vehicle.
22-AT-007H2022-06-10. Service bulletin. Certain vehicles (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit (TCU) with revised logic, and/or replacing the Double Clutch.
21-AT-014H2021-09-17. Service bulletin. Certain vehicles (listed below) equipped with 7-speed Double Clutch Transmissions (DCT) may exhibit abnormal vibration at low speeds. This bulletin outlines the procedures for diagnosing clutch judder, updating the Transmission Control Unit (TCU) with revised logic, and/or replacing the Double Clutch.
Campaign TWW Dea2020-07-08. Service bulletin. This service campaign provides instructions to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) to improve the shift quality of the DCT (Dual Clutch Transmission) for these vehicles.
20-01-025H2020-07-08. Service bulletin. This bulletin provides the procedure to update both the ECM (Engine Control Module) and the TCM (Transmission Control Module) on certain 2015-2017 Hyundai Sonatas equipped with 1.6L turbo engine 7-speed DCT Transmission.
20-AT-017H2020-06-06. Service bulletin. If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4. • Check Engine light on • DTC P0880/P088000 - TCM Power signal error open/short • Transmission stuck in 4th gear fail-safe • Harsh shift into Reverse and Drive