{"nhtsa_id":10138958,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-04","date":"2016-04-15","document_id":"18-043-16","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EQUIPMENT","mfr_system":null,"summary":"Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience the following condition: · **Buzzing type noise in the fuel rail area of the engine.** · Bucking under hard acceleration. The software enhancements also include: · **Improvements to protect engine from fuels out of the EN590 specifications or fuels with a high biodiesel content.** · Improvements to the A/C compressor relay duty cycle operation to prevent ignition off battery draw.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10138958-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10138958-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10138958","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"transmission-control-module","name":"Transmission control module","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2015,"year_to":2015,"match":"exact","vehicle_ids":["2015_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":[]}