{"nhtsa_id":10053443,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-10-28","date":"2015-02-23","document_id":"ATI-4-1303","mfr_campaign":null,"replaces":"ATI-4-1303-A","component":"SERVICE BRAKES","mfr_system":null,"summary":"PORSCHE: WHEN THE FAULT CODE P055600 IS STORED, SOME VEHICLES MAY REQUIRE THE BRAKE BOOSTER VACUUM SYSTEM FUNCTION TO BE TESTED. MODEL ALSO INCLUDED PANAMERA S HYBRID (970) MODEL YEAR 2013. *JS UPDATED 6/12/15. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10053443","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":["P0556"],"topics":[],"vehicles":[{"make":"PORSCHE","model":"PANAMERA S HYBRID","year_from":2012,"year_to":2012,"match":"base","vehicle_ids":["2012_porsche_panamera"]}],"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":[]}