{"nhtsa_id":10187686,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-01","date":"2020-12-05","document_id":"09-013-20","mfr_campaign":null,"replaces":null,"component":"ENGINE; EQUIPMENT; ELECTRICAL SYSTEM","mfr_system":null,"summary":"3.6L Pentastar Upgrade Spark Plug Internal Crack This bulletin involves replacing all six spark plugs. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. Customers may also comment on the following: Rough running engine.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187686-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10187686-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10187686","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P0301","P0302","P0303","P0304","P0305","P0306"],"topics":[],"vehicles":[{"make":"CHRYSLER","model":"PACIFICA","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_chrysler_pacifica"]},{"make":"DODGE","model":"DURANGO","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_dodge_durango","2021_dodge_durango"]},{"make":"JEEP","model":"GLADIATOR","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_gladiator"]},{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2020,"year_to":2021,"match":"exact","vehicle_ids":["2020_jeep_grand-cherokee","2021_jeep_grand-cherokee"]},{"make":"JEEP","model":"WRANGLER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_wrangler"]},{"make":"RAM","model":"1500","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ram_1500"]}],"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":[]}