{"nhtsa_id":11005322,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-07-30","date":"2024-07-25","document_id":"18-064-24","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"Powertrain Control Module","summary":"\"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** ● **P018B - Fuel Pressure Sensor \"\"B\"\" Circuit Range/Performance.** Customer may also experience one or more of the following: ● **Undesirable vehicle drivability behavior causing the a Shift to Park event during Engine Stop Start (ESS) while Adaptive Cruise Control (ACC) is active. ● Pressing ACC button while ESS active can shift the vehicle to park. ● Idle speed oscillations observed when in Snow and Mud modes. ● Poor engine performance (undershoots engine speed) for ESS and for non-ESS engine start. ● Screen two incorrectly pops up on the Instrument Cluster Panel (IPC) for 5 seconds during Terrain and Rock mode.** ● Poor or reduced air conditioning performance during wide open throttle or heavy acceleration. This bulletin involves reprogramming the PCM with the latest available software.\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11005322-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11005322-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11005322","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P018B"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_jeep_grand-wagoneer"]},{"make":"JEEP","model":"WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_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":[]}