{"nhtsa_id":10058572,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2015-10-13","date":"2015-07-03","document_id":"SB-21-045-15","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"JEEP: SOME VEHICLES WILL REQUIRE LATEST SOFTWARE REPROGRAMMING OF TRANSMISSION CONTROL MODULE (TCM) DUE TO EXPERIENCING A BUMP SENSATION DURING 1-2 UPSHIFT OR 6-5 DOWNSHIFT OR DURING LOW SPEED TIP IN ACCELERATION OR VEHICLE SET SNOW MODE WHILE STATIONARY. MODEL 2015 GRAND CHEROKEE. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10058572","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"software","name":"Software","parent":"electrical"},{"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":[]}