{"nhtsa_id":10114403,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2015-02-13","document_id":"PIP5268","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that may have a surge, shudder, vibration, chuggle, or fishbite felt while driving after a cold soak start until the engine reaches operating temperature, most noticeable on a 50% or higher throttle. This condition has been determined to be a design characteristic and no repairs are to be attempted.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114403-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114403-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10114403","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"IMPALA","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_chevrolet_impala"]}],"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":[]}