{"nhtsa_id":10218812,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-29","date":"2014-04-16","document_id":"21-014-14","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; TRAILER HITCHES; POWER TRAIN","mfr_system":null,"summary":"Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. NOTE: This bulletin applies to the following vehicles: • Wrangler vehicles equipped with the WA580 Automatic Transmission (Sales Code DGJ) • Challenger vehicles equipped with either the 3.6L engine (Sales Code ERB) or the 6.4L Engine (Sales Code ESH or ESG) and the WA580 Automatic Transmission (.Sales Code DGJ) • Durango vehicles equipped with the 3.6L engine (Sales Code ERB) and the WA580 Automatic Transmission (Sales Code DGJ) • Grand Cherokee vehicles equipped with the 6.4L engine (Sales Code ESG) for all markets except Australia (Sales Code 8AL) or the 3.6L engine (Sales Code ERB) (All Markets) and the WA580 Automatic Transmission (Sales Code DGJ). Australian vehicles equipped with the 6.4L can refer to Service Bulletin 21-010-14","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10218812-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10218812-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10218812","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"trailer-hitch","name":"Trailer hitch","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":"DODGE","model":"CHALLENGER","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_dodge_challenger"]},{"make":"DODGE","model":"DURANGO","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_dodge_durango"]},{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_jeep_grand-cherokee"]},{"make":"JEEP","model":"WRANGLER","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_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":[]}