{"id":10670,"date":"2025-09-08T14:14:29","date_gmt":"2025-09-08T18:14:29","guid":{"rendered":"https:\/\/www.calemonlaw.com\/blog\/?p=10670"},"modified":"2025-09-08T14:14:54","modified_gmt":"2025-09-08T18:14:54","slug":"jeep-grand-cherokee-phev-recall-software-problem-may-cause-loss-of-drive-power","status":"publish","type":"post","link":"https:\/\/www.calemonlaw.com\/blog\/?p=10670","title":{"rendered":"Jeep Grand Cherokee PHEV Software Problem May Cause Loss of Drive Power"},"content":{"rendered":"\n

Fiat Chrysler Automobiles (FCA US LLC) has identified a serious issue affecting certain 2022\u20132026 Jeep Grand Cherokee Plug-In Hybrid Electric (PHEV)<\/strong> vehicles. A software error within the Hybrid Control Processor (HCP)<\/strong> can result in a sudden loss of drive power, creating potential safety risks for drivers and passengers.<\/p>\n\n\n\n

What\u2019s the Problem?<\/h2>\n\n\n\n

The issue stems from the Battery Pack Control Module (BPCM)<\/strong> microprocessor. In some vehicles, the microprocessor may become overloaded and reset. During specific reset events, the HCP may misinterpret signals from the BPCM<\/strong>, causing the system to incorrectly shut down propulsion.<\/p>\n\n\n\n

This defect could lead to a loss of drive power while operating<\/strong>, increasing the risk of a crash if drivers are unable to maintain control of their vehicles.<\/p>\n\n\n\n

When Were the Vehicles Built?<\/h2>\n\n\n\n

The suspect period began on July 23, 2021<\/strong>, when the faulty HCP software was introduced into production, and ended on August 29, 2025<\/strong>, when FCA placed affected vehicles under plant control. Engineering records and assembly plant data were used to define this production window.<\/p>\n\n\n\n

Chronology of Events<\/h2>\n\n\n\n

The chronology of events surrounding the discovery of the software problem in certain 2022\u20132026 Jeep Grand Cherokee Plug-In Hybrid Electric (PHEV) vehicles began on May 1, 2025<\/strong>, when FCA US LLC received a Preliminary Information Request<\/strong> from NHTSA\u2019s Office of Defect Investigations, followed by FCA\u2019s response on May 23, 2025<\/strong>. A supplemental request<\/strong> from NHTSA arrived on June 23, 2025<\/strong>, with FCA responding on July 14, 2025<\/strong>. Meanwhile, on June 24, 2025<\/strong>, FCA\u2019s Technical Safety and Regulatory Compliance (TSRC) team opened an investigation into loss of propulsion complaints<\/strong> in Jeep Grand Cherokee PHEVs. Between June and August 2025, FCA US TSRC worked with FCA US Engineering to review the issue, analyze possible failure modes, and identify the suspect vehicle population. By August 18, 2025<\/strong>, FCA had recorded 96 customer assistance records, 110 field reports, and 320 service records<\/strong> related to the issue, though no accidents or injuries had been reported. Finally, on August 28, 2025<\/strong>, FCA\u2019s Vehicle Regulations Committee concluded that a defect affecting motor vehicle safety potentially exists<\/strong> in all affected vehicles.<\/p>\n\n\n\n

Recall Information<\/h2>\n\n\n\n