{"nhtsa_id":10085082,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-11-29","date":"2014-10-17","document_id":"PI0837","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","mfr_system":null,"summary":"THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES A PROCEDURE TO UPDATE THE TRANSMISSION CONTROL MODULE (TCM) AND ENGINE CONTROL MODULE (ECM) SOFTWARE TO CORRECT A CUSTOMER CONCERN ON A HESITATION OR A ‘SAG’ ON ACCELERATION AFTER A ‘LIFT FOOT’ OR COAST MANEUVER.","document":null,"url":"https://open.wenmarpro.com/bulletins/10085082","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":"CHEVROLET","model":"IMPALA","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_chevrolet_impala","2013_chevrolet_impala"]}],"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":[]}