{"nhtsa_id":10175568,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-26","date":"2020-03-19","document_id":"18-023-20","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0780 - Gear Shift Malfunction. P050B - Cold Start Ignition Timing Performance. P06EF - Engine Restart Performance. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. Customers may also comment on one or more of the following:Extended engine crank times or possibly a no start condition(South Korea with Sales Code EDD only). The engine fails to restart while in Engine Stop/Start (ESS) mode. This is usually accompanied withDTC P06EF.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175568-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175568-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175568","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"lighting","name":"Lighting","parent":null}],"codes":["P0456","P050B","P06EF","P0780"],"topics":[],"vehicles":[{"make":"JEEP","model":"CHEROKEE","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_jeep_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":[]}