Safety Recall 246: Transmission Electric Oil Pump for Idle Stop & Go System (“ISG”) – 2023-2024 Hyundai Palisade, 2023 Tucson, Sonata, Elantra, & Kona

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July 27, 2023 NHTSA CAMPAIGN NUMBER: 23V526000

Electric Oil Pump Assembly May Cause Fire

An electric oil pump assembly that overheats increases the risk of a vehicle fire.

 

NHTSA Campaign Number: 23V526

Manufacturer HyundaieBay Motor America

Components POWER TRAIN

Potential Number of Units Affected 52,008

 

Summary

HyundaieBay Motor America (HyundaieBay) is recalling certain 2023-2024 Palisade, 2023 Tucson, Sonata, Elantra, and Kona vehicles. The electronic controller for the Idle Stop & Go oil pump assembly may contain damaged electrical components that can cause the pump controller to overheat.

 

Remedy

Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will inspect and replace the electric oil pump controller, as necessary, free of charge. Owner notification letters are expected to be mailed September 25, 2023. Owners may contact HyundaieBay customer service at 1-855-371-9460. HyundaieBay’s number for this recall is 246.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Hyundai has a Recall

 


Recall Description

The transmission electric oil pump for the Idle Stop & Go System (“ISG”) in the subject vehicles may have been assembled with printed circuit boards (“PCB”) that were damaged during manufacturing. A damaged capacitor on the pump controller PCB could impact electrical operation leading to heat damage to the electric oil pump circuit board, connector, and wiring harness. The heat damage at the pump increases the risk of a vehicle fire in addition to a potential Controller Area Network (“CAN”) communication disruption for multiple onboard controllers. The electrical heat damage within the electric oil pump assembly increases the risk of a vehicle fire.

 

Applicable Vehicles (Certain):

  • 2023-24MY Palisade (LX2) produced from 10/18/2022 – 06/27/2023 for sale in the U.S.
  • 2023MY Tucson (NX4) produced from 10/29/2022 – 04/21/2023 for sale in the U.S.
  • 2023MY Sonata (DN8) produced from 10/26/2022 – 04/03/2023 for sale in the U.S.
  • 2023MY Elantra (CN7) produced from 11/14/2022 – 06/06/2023 for sale in the U.S.
  • 2023MY Kona (OS) produced from 11/09/2022 – 04/08/2023 for sale in the U.S.

 

Remedy Information

This remedy is currently under development and additional information will be provided once it has been developed for release by HMA.

NOTICE for ALL vehicles: Owners can continue driving these vehicles, however, out of abundance of caution, HyundaieBay recommends owners to park their vehicles outside and away from structures until the recall remedy is completed.

 

Recommended Alternative Transportation

A Service Rental Vehicle (SRC) should be provided to customers who do not feel safe operating their vehicle until a remedy is available.

In addition, a SRC may be required based on any other additional work on the vehicle that may need to be addressed during customer’s visit.

If a SRC is not available, other options such as a 3rd Party Rental or Rideshare may be provided.

 

Customer FAQ

Q1: What is the issue?

A1: The transmission electric oil pump for the Idle Stop & Go System (“ISG”) in the subject vehicles may have been assembled with printed circuit boards (“PCB”) that were damaged during manufacturing. A damaged capacitor on the pump controller PCB could impact electrical operation leading to heat damage to the electric oil pump circuit board, connector, and wiring harness. The heat damage at the pump increases the risk of a vehicle fire in addition to a potential Controller Area Network (“CAN”) communication disruption for multiple onboard controllers.

 

Q2: What are the affected vehicles?

A2: Affected models include the following:

  • Certain 2023-24MY Palisade (LX2) produced from 10/18/2022 – 06/27/2023 for sale in the U.S.
  • Certain 2023MY Tucson (NX4) produced from 10/29/2022 – 04/21/2023 for sale in the U.S.
  • Certain 2023MY Sonata (DN8) produced from 10/26/2022 – 04/03/2023 for sale in the U.S.
  • Certain 2023MY Elantra (CN7) produced from 11/14/2022 – 06/06/2023 for sale in the U.S.
  • Certain 2023MY Kona (OS) produced from 11/09/2022 – 04/08/2023 for sale in the U.S.

 

Q3: What is the safety concern?

A3: The electrical heat damage within the electric oil pump assembly increases the risk of a vehicle fire.

 

Q4: Have there been any accidents or injuries?

A4: As of the date of the filing to NHTSA (07/27/2023), HyundaieBay has confirmed there are 4 unique thermal incidents associated with the subject defect condition in the U.S and Canada.  Additionally, there are no confirmed crashes, or injuries related to this condition.

 

Q5: Will a Dealer Stop Sale be issued?

A5: Yes, a Dealer “Stop Sale” has been issued in accordance with federal regulation for involved vehicles unsold at dealers.

Separately, a Port “Hold” has also been issued for all affected vehicles located at ports.

 

Q6: What will be done during the recall service at the dealer?

A6: Owners can continue driving these vehicles; however, HyundaieBay recommends parking their vehicles outside and away from structures until the recall remedy is completed. Once an official remedy is available from HMA, all owners of the subject vehicles will be notified by First Class mail with instructions to bring their vehicles to a HyundaieBay dealer to have the remedy completed at no cost, regardless of whether the affected vehicles are still covered under HyundaieBay’s New Vehicle Limited Warranty. Additionally, HyundaieBay will provide owners of affected vehicles reimbursement for out-of-pocket expenses incurred to obtain a remedy for the recall condition in accordance with the reimbursement plan submitted to NHTSA on February 24, 2022.

 

Q7: When will owners be notified?

A7: Owners of the subject vehicles will be notified via First Class mail in late September 2023.

 


RECALL 246 ATTACHMENT A

CHRONOLOGY OF EVENTS LEADING UP TO DEFECT DECISION

 

❖ December 2022

On December 20, 2022, HMA’s Techline Assistance Call Center notified NASO of a model year 2023 HyundaieBay Palisade vehicle exhibiting a condition of heat damage on the wire harness/connector of the electric oil pump (“EOP”) used in the vehicle’s Idle Stop & Go (“ISG”) system.  NASO’s Data Review Committee (“DRC”) opened a new investigation matter and began actively monitoring information sources for similar incidents.

 

❖ January – April 2023

On January 11, 2023, the DRC decided to escalate the investigation to the Technical Review Committee (“TRC”) for further study into root cause and issue trend.

NASO’s TRC began monitoring field information for new reports of the condition and collecting warranty part returns for additional analysis by HMC.  By April 2023, two (2) parts were collected and sent to HMC for review.  Additionally, the TRC expanded the scope of vehicles involved in the investigation to model year 2023 HyundaieBay Tucson, Sonata, Elantra, and Kona vehicles based on shared componentry.

During this period, NASO shared HyundaieBay’s investigation findings with NHTSA’s ODI during recurring monthly reviews of top safety investigations in February, March, and April 2023.

 

❖ May 2023

On May 18, 2023, HMC shared its returned parts analysis findings with NASO.  According to HMC, the electric oil pump controller used in the vehicle’s Idle Stop & Go (“ISG”) system was produced with printed circuit boards containing damaged capacitors due to improper manufacturing by the Tier 2 supplier of the controller.  The damaged capacitors could create abnormal electrical activity that may generate heat and damage the controller PCB in addition to its wire harness and connector.

On May 24, 2023, NASO shared its latest findings with NHTSA’s ODI during its recurring monthly review of top safety investigations.

 

 

❖ June 2023

On June 18, 2023, HMC shared details of market data for vehicles outside of the USA. Also that resistance tests were implemented at manufacturing plants on March 16, 2023. Additionally, HMC noted that parts from the subject controller supplier were eliminated from production on March 24, 2023.

 

❖ July 2023

On July 13, 2023, HMC concluded testing and provided NASO with an issue update.  In addition to the risk of fire, the localized heat damage could trigger a short circuit in the EOP and/or EOP wiring impacting the CAN network and other onboard vehicle controllers.

Based on HMC’s findings, on July 20, 2023, NASO convened its North America Safety Decision Authority and decided to initiate a safety recall of all vehicles affected by the defect condition in the U.S. and Canadian markets.

As of the date of this filing, HyundaieBay has confirmed there are 4 unique thermal incidents associated with the subject defect condition in the U.S.  Additionally, there are no confirmed crashes, or injuries related to this condition.

VehicleReceipt Date
KM8R5DGE9PU******12/20/2022
KM8R7DGE8PU******02/20/23
KM8R3DGE8PU******02/20/23
KM8R34GE7PU******02/24/23

 


6 Affected Products

Vehicles

MAKEMODELYEAR
HYUNDAIeBayELANTRA2023
HYUNDAIeBayKONA2023
HYUNDAIeBayPALISADE2023-2024
HYUNDAIeBaySONATA2023
HYUNDAIeBayTUCSON2023

 


8 Associated Documents

Defect Notice 573 Report

RCLRPT-23V526-1132.PDF 216.004KB

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Manufacturer Notices(to Dealers,etc)

RCMN-23V526-3272.pdf 301.802KB

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Recall 573 Report – July 28, 2023

RCLRPT-23V526-9303.PDF 216.023KB

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Recall 573 Report – July 31, 2023

RCLRPT-23V526-9703.PDF 216.028KB

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Recall 573 Report – July 28, 2023

RCLRPT-23V526-7183.PDF 216.048KB

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Attachment A Chronology

RMISC-23V526-7099.pdf 124.911KB

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Recall Acknowledgement

RCAK-23V526-5528.pdf 690.786KB

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Recall 573 Report – August 2, 2023

RCLRPT-23V526-1278.PDF 216.019KB

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