{"nhtsa_id":10121699,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2016-07-20","document_id":"18-021-16 REV. B","mfr_campaign":null,"replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM; POWER TRAIN","mfr_system":null,"summary":"Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · **P0305 - Cylinder 5 Misfire.** · P0300 - Multiple Cylinder Misfire. · P0335 - Crankshaft Position Sensor Circuit. · P0306 - Cylinder 6 Misfire. The following enhancements are also included in this software update: · Cruise control calibration improvement. · Improved engine misfire calibration on automatic transmission vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121699-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121699-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121699","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0300","P0305","P0306","P0335"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER","year_from":2016,"year_to":2016,"match":"exact","vehicle_ids":["2016_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":[]}