{"nhtsa_id":11006372,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-08-14","date":"2024-08-14","document_id":"9100403","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":"High Voltage Battery, Onboard Battery Charger","summary":"Charger , Onboard Battery Symptom/Vehicle Issue: High Voltage (HV) Battery Will not Take a Charge, Diagnostic Trouble Code B22A9-42-ECU Internal Performance-General Memory Failure Integrated Dual Charge (IDCM) Customer Complaint /Technician Observation: The owner complains that they cannot charge the HV battery. The technician observed the IDCM is setting DTC B22A9-42-ECU Internal Performance-General Memory Failure Integrated Dual Charge (IDCM) Discussion: Engineering is aware of the concern and is currently working on a software update for the IDCM. If the vehicle has the above-described complaint; the DTC can be cleared allowing the vehicle to operate and charge as expected. The service update is expected by the end of September, the field will be notified when the update becomes available. Do not replace any parts the replacement parts will perform the same. Repair : Clear the DTC. It will allow the vehicle to operate and charge as expected. Do not replace the IDCM. During integrity check monitoring, intermittent loss of communication between LV MCU and DSP, is observed. 2)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11006372-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11006372-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11006372","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B22A9"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_jeep_grand-cherokee"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}