{"nhtsa_id":10112479,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2012-10-16","document_id":"PIP4859B","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician on the steps to vacuum fill to ensure the cooling system is properly filled. Technician will need to use special tool GE-47716 Vac-N-Fill Coolant Refill Tool. Technician will also perform Hybrid/EV Battery Pack Coolant Pump Bleed Procedure in the Global Diagnostic System 2 tool. After performing the Global Diagnostic System 2 coolant bleed procedure drive vehicle for approximately 5 miles in a slalom type of situation to purge any remaining air from battery pack cooling plates.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112479-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10112479-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10112479","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"hybrid-ev","name":"Hybrid and electric drive","parent":null},{"id":"battery","name":"12-volt battery","parent":"electrical"},{"id":"traction-battery","name":"High-voltage battery","parent":"hybrid-ev"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"VOLT","year_from":2011,"year_to":2013,"match":"exact","vehicle_ids":["2011_chevrolet_volt","2012_chevrolet_volt","2013_chevrolet_volt"]}],"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":[]}