{"nhtsa_id":11035176,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-23","date":"2026-07-18","document_id":"18-068-26","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **U0405-00 - Invalid Data Received From Cruise Control Module. ● U0104-00 - Lost Communication With Cruise Control Module. NOTE: Vehicles setting DTCs U0405-00 and U0104-00 may experience an inability to be cleared.** ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● P06DD-00 - Engine Oil Pressure Control Circuit Stuck Off. ● P0604-00 - Internal Control Module Random Access Memory Ram Error. ● P060C-00 - Internal Control Module Main Processor Performance. This bulletin involves reprogramming the PCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035176-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11035176-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11035176","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P00C6","P0604","P060C","P06DD","U0104","U0405"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND WAGONEER","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_jeep_grand-wagoneer"]},{"make":"JEEP","model":"WAGONEER","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_jeep_wagoneer"]}],"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":[]}