{"nhtsa_id":10084054,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-11-07","date":"2016-07-30","document_id":"18-024-16 REV. B","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"\"FLASH: POWERTRAIN DIAGNOSTIC AND SYSTEM IMPROVEMENTS THIS BULLETIN INVOLVES REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH UPDATED SOFTWARE. THE CUSTOMER MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION OR NOTICE THAT THE FUEL SAVER INDICATOR LIGHT (FSI) IS TURNING ON AND OFF. UPON FURTHER INVESTIGATION THE TECHNICIAN MAY FIND ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS): · **P0452 - EVAP PRESSURE SWITCH STUCK CLOSED (10 MY WITH SALES CODE DEH ONLY).** · U0140 - LOST COMMUNICATION WITH BODY CONTROL MODULE. ATTEMPTING TO CLEAR THE DTC MAY BE UNSUCCESSFUL. OTHER ENHANCEMENTS INCLUDED IN THIS UPDATE: · IMPROVED FUEL PUMP RELAY OPERATION. · IMPROVED REMOTE START TIME AFTER KEY ACTIVATION. · IMPROVED AUTOMATIC SHUTDOWN RELAY (ASD) TIMER CALIBRATION. · FIX FOR FALSE (FSI) LIGHT ON (WITH COMBINATION SALES CODES EGT AND DEH).\"","document":null,"url":"https://open.wenmarpro.com/bulletins/10084054","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0452","U0140"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_jeep_wrangler","2011_jeep_wrangler"]}],"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":[]}