{"nhtsa_id":11015378,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-03-08","date":"2025-02-27","document_id":"ITB25-003","mfr_campaign":null,"replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM","mfr_system":null,"summary":"ECM REPLACEMENT PROCEDURE REQUIRED FOR RES EQUIPPED VEHICLES SERVICE INFORMATION If any of the APPLIED VEHICLES equipped with Remote Engine Start (RES) requires Engine Control Module (ECM) replacement, the Body Control Module (BCM) must be replaced also at the same time. If you are not familiar with the Re/programming, Configuration procedure, refer to the Electronic Service Manual (ESM) and the CONSULT Operation Manual to reprogram the Electronic Control Unit (ECU). Follow all precautions in both manuals to prevent possible personal injury or death and/or damage to the ECU. • This procedure will go back and forth between the ECM and BCM steps as found in the ESM. • Damage will occur requiring the ECM and the BCM to be replaced a second time if the following SERVICE PROCEDURE is not followed. Perform the following steps from the Electronic Service Manual (ESM) in this order: A. Perform “Work Procedure (Before Replacing ECM)” to save the ECM data. B. Remove the ECM. C. Remove the BCM. D. Install the new BCM and then perform “Additional Service When Replacing BCM - Work Procedure” up to and including “Register of Vehicle Identification Number”. E. Install the new ECM and then perform “Additional Service When Replacing ECM - Work Procedure (After Replacing ECM)” up to and including “Writing MAC Key for ECM”. F. Complete the “Additional Service When Replacing BCM - Work Procedure”. G. Complete the “Additional Service When Replacing ECM - Work Procedure (After Replacing ECM)”.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015378-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11015378-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11015378","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"INFINITI","model":"QX80","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_infiniti_qx80"]}],"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":[]}