{"nhtsa_id":10154283,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-03-11","date":"2019-02-08","document_id":"PIP4176A","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary Information communication advises the technician that the When the engine is cold, a light rattle noise may be heard from under the hood at 1,100 - 1,200 RPM. This noise is a result of normal drive belt and tensioner resonance that may be amplified on a cold engine. As a result, this noise will be isolated to the drive belt tensioner area. This noise is most noticeable on a cold engine and typically, is not noticeable on a warm engine. If this concern is experienced, it is currently considered a normal operating characteristic of the hybrid drive belt tensioner system and system loads from the hybrid starter/generator, and no repairs should be performed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10154283-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10154283-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10154283","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SATURN","model":"AURA","year_from":2007,"year_to":2007,"match":"exact","vehicle_ids":["2007_saturn_aura"]}],"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":[]}