NHTSA launches investigation into Hyundai IONIQ 5 over power loss concerns [Update]

Owners of the Hyundai IONIQ 5 in the US have reported multiple incidents of complete or partial loss of propulsive power in their electric SUV. The issue has prompted the US National Highway Traffic Safety Administration (NHTSA) to launch an investigation after receiving 30 such complaints from owners who experienced power loss, often accompanied by a loud popping noise.

According to the NHTSA Office of Defects Investigation (ODI) notice posted to the NHTSA website, these complaints specifically relate to the 2022 model year Hyundai IONIQ 5 vehicles. A preliminary investigation suggested a recharging problem as the cause of the issue. It appears that a power surge is damaging the Integrated Control Charging Unit (ICCU), leading to the 12-volt battery being unable to charge properly.

In a statement to the Associated Press, Hyundai has said a software update will be made available starting next month, and affected components will be replaced as necessary. The company has assured full cooperation with the NHTSA’s investigation and announced plans to launch a service campaign in July to address the software-related concerns.

Transport Canada has not posted a similar notice, but we have reached out to the agency to see if any owners in Canada have reported the same issue, and if a similar investigation is taking place in Canada. We will update this article when we receive a response.

UPDATE 2:14pm PT: Transport Canada tells us they are aware of 2 incidents of power loss in the IONIQ 5, but they have not launched a defect investigation yet. Here is their full statement to Drive Tesla.

Transport Canada has received and documented two complaint reports involving a sudden reduction in vehicle power on Hyundai IONIQ 5 electric vehicles. In both cases, the vehicle could still be driven at lower speeds. A defect investigation has not been opened at this time.

Transport Canada encourages vehicle owners or anyone who believes they have experienced a safety-related condition with their vehicle to report it, as quickly as possible, to our Defect Complaint Analysis Section by phone, at 1-800-333-0510, or through the online form on Transport Canada’s website: www.tc.gc.ca/recalls.

UPDATE June 27 9:20am PT: Hyundai has confirmed with us that they will be launching a service campaign in Canada to address this issue as well. Here is their full statement to Drive Tesla.

Hyundai Motor America is fully cooperating with NHTSA’s preliminary investigation (PE23-011) into a condition related to the Integrated Control Charging Unit (ICCU) in model year 2022 Hyundai IONIQ 5 vehicles. Hyundai values its cooperative relationship with NHTSA and have engaged in frequent, open and transparent dialogue with the agency on this topic.

 We are addressing this concern in Canada as well – Hyundai is launching a service campaign in July that will update the affected vehicle’s software and replace the ICCU if necessary. Canadian IONIQ 5 owners will be contacted in the coming weeks with information and instructions.

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