{"nhtsa_id":10169235,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-12-16","date":"2019-11-06","document_id":"18-093-19","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","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 the following Diagnostic Trouble Codes (DTCs) have been set: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. P06EF - Engine Restart Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169235-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10169235-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10169235","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0456","P06EF"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_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":[]}