{"nhtsa_id":10248916,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-01-16","date":"2023-11-01","document_id":"1801323","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION; STEERING; VEHICLE SPEED CONTROL; FUEL SYSTEM, GASOLINE; POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers or technician may experience one or more of the following: ? **The engine oil life displayed on Instrument Panel Cluster (IPC) drops down too fast when the engine oil dilution reaches high level without the ability to recover. ? Incorrect reporting of fuel tank high pressure sensor value on wiTECH and Freeze Frame. ? The fuel door will get locked in the event of a leak failure.** ? Engine must be started twice to achieve drive ready (at low temperatures around -30°C, -22°F) when the vehicle was entered and started quickly. ? ?Performance Limited, Service Fuel System? message displayed while driving. ? Unable to enter electric mode driving while Fuel Oil Refresh Mode (FORM) is active. This bulletin involves reprogramming the PCM with the latest available software. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this HCP and AHCP update: ? Transmission Control Module (TCM). ? Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) also known as Power Inverter Module (PIM) module.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248916-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248916-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10248916","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"steering","name":"Steering","parent":null},{"id":"speed-control","name":"Throttle and cruise control","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"backup-camera","name":"Backup camera","parent":"driver-assistance"}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2022,"year_to":2022,"match":"exact","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":[]}