{"nhtsa_id":10231795,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-02-13","date":"2023-01-24","document_id":"08-019-23","mfr_campaign":null,"replaces":null,"component":"BACK OVER PREVENTION; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; STRUCTURE; SERVICE BRAKES","mfr_system":null,"summary":"Flash: Radio Frequency Hub Module (RFHM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs) have been set: B21DD-84 - System Voltage-Signal Below Allowable Range. B21DD-85 - System Voltage-Signal Above Allowable Range. C151D-00 - Tire Pressure Sensor Location Undetermined. U1517-87 - Body Controller Secret Code-Missing Message. B1A71-01 - Passive Entry Antenna 1-General Electrical Failure. B1A72-01 - Passive Entry Antenna 2-General Electrical Failure. B1A73-01 - Passive Entry Antenna 3-General Electrical Failure. B1A74-01 - Passive Entry Antenna 4-General Electrical Failure. B1A75-01 - Passive Entry Antenna 5-General Electrical Failure. The customer may also experience one or more of the following: ?Fob Left Vehicle? message is displayed on Instrument Panel Cluster (IPC) after a remote start. Vehicle no-starts. This bulletin involves updating the RFHM module with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10231795-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10231795-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10231795","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"brakes","name":"Brakes","parent":null},{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"lighting","name":"Lighting","parent":null},{"id":"backup-camera","name":"Backup camera","parent":"driver-assistance"}],"codes":["B1A71","B1A72","B1A73","B1A74","B1A75","B21DD","C151D","U1517"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_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":[]}