{"nhtsa_id":10089686,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-26","date":"2012-10-30","document_id":"12238A","mfr_campaign":null,"replaces":null,"component":"ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY","mfr_system":null,"summary":"12238A - SERVICE UPDATE (REVISED SERVICE PROCEDURE). THE GENERATOR CONTROL MODULE (GCM) MAY NOT FUNCTION PROPERLY, RESULTING IN THE GRADUAL LOSS OF BATTERY CHARGE, ILLUMINATION OF THE MIL, AND EVENTUAL ENGINE STALL OR NO START CONDITION. DEALERS ARE TO INSPECT AND REPLACE THE GCM, IF NECESSARY.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089686","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"LACROSSE","year_from":2012,"year_to":2013,"match":"exact","vehicle_ids":["2012_buick_lacrosse","2013_buick_lacrosse"]},{"make":"BUICK","model":"REGAL","year_from":2012,"year_to":2012,"match":"exact","vehicle_ids":["2012_buick_regal"]}],"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":[]}