Volkswagen Group of America, Inc. is recalling 20,904 vehicles of the 2021-2021 Volkswagen ID4 model due to a defect in the high voltage (HV) battery management control module and pulse inverter control module.
The recall was submitted on February 1, 2023, and assigned NHTSA recall number 23V-040 and manufacturer recall number 97ZZ. The recalled vehicles have a different software version in comparison to vehicles not included in the recall, which have an improved software.
The recall was initiated due to the sensitivity of the self-diagnosis software of the HV battery management system that may lead to an unnecessary reset of the control unit. Additionally, a software failure in the pulse inverter may lead to incorrect evaluation of internal measurement values and the deactivation of the pulse inverter.
These defects may result in a loss of propulsion and increase the risk of a crash. The driver will receive an immediate warning in the instrument cluster when these situations occur.
The remedy program will involve updating the software of the HV battery management control unit and pulse inverter control unit. Volkswagen will not offer a reimbursement plan under this recall. The recall remedy component can be distinguished from the recalled component because the software is improved.
The issue was first reported in Europe in July 2021, and data monitoring was conducted until August 2022, when some reports from the US market indicated stalling allegations at ID.4 vehicles.
The topic was presented in the Volkswagen Product Safety Committee in October 12, 2022, where it was determined that there was no unreasonable risk to motor vehicle safety. The recall decision was made on January 25, 2023, based on identified fault entries in US vehicles.
