{"nhtsa_id":10114123,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2013-02-12","document_id":"G-158840","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"13013A - Service Update (revised service procedures ). The ring gasket may be pinched between the flanges on the inside diameter of the joint leading to a visible gap. As the pinched part of that gasket relaxes, clamp load is lost at that stud location. Dealers are to tighten all 4 exhaust manifold bolts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10114123-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10114123-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10114123","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ATS","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_cadillac_ats"]},{"make":"CHEVROLET","model":"MALIBU","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_chevrolet_malibu"]}],"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":[]}