Ford electric SUV recall plan questioned, NHTSA launches investigation

The U.S. National Highway Traffic Safety Administration (NHTSA) recently opened an investigation into Ford Motor Co.’s response to the recall of nearly 49,000 Mustang Mach-E electric SUVs last year

According to Automotive News According to reports, Ford initiated a recall in June 2022 due to overheating failure of the high-voltage contactor of the Mustang Mach-E electric SUV. This fault may cause the vehicle to suddenly lose power while driving, increasing the risk of an accident, especially after high-speed charging or frequent rapid acceleration

In order to solve this problem, Ford used OTA to update the software Updated to reduce the risk of battery power when the high voltage contactor overheats to avoid sudden loss of power and protect the contactor from damage. Additionally, Ford is suspending deliveries of affected vehicles at dealers until the software update is completed. Additionally, Ford issued a service bulletin with plans to replace the high-voltage battery junction box in affected vehicles

However, NHTSA received 12 consumer complaints questioning Ford's solution. These complaints claim that 2021-2022 Mustangs that have been repaired In Mach-E vehicles, a high-voltage battery main contactor failure still occurs. These vehicles were all repaired in a previous recall (number 22V-412).

The editor learned that in response to these complaints, NHTSA's Defect Investigation Office has launched a recall inquiry (RQ). The new recall inquiry remediation includes updating the secondary on-board diagnostic control module (SOBDMC) software that monitors contactor temperature and reduces battery power to prevent contactor damage. Additionally, the Battery Energy Control Module (BECM) software will be updated to monitor contactor resistance, identify overheated contactors, and reduce vehicle power to avoid further damage.

The initial recall affects 48,924 2021 and 2022 Mustang Mach-E vehicles that were sold in Cuatit, Mexico between May 27, 2020, and May 24, 2022 Made in Lan factory. According to the National Highway Traffic Safety Administration (NHTSA), the new recall extends to 64,727 vehicles. At the same time, some consumers complained that after a software update, the same electrical system problems recurred, and they even had to replace the high-voltage battery junction box twice

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