{"nhtsa_id":637261,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-11-22","date":"2002-06-21","document_id":"210602","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME VEHICLES BUILT WITH THE 2.2 LITER OR 3.4 LITER ENGINE MAY HAVE A CUSTOMER COMPLAINT ABOUT INTERMITTENT DRIVABILITY ISSUES, WHICH MAY ALSO INCLUDE A SERVICE ENGINE SOON LIGHT AND OR MORE POWERTRAIN CONTROL MOUDLE DIAGNOSTIC TROUBLE CODES OR DIAGNOSTIC TROUBLE CODES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637261","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"OLDSMOBILE","model":"ALERO","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_oldsmobile_alero"]},{"make":"PONTIAC","model":"GRAND AM","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_pontiac_grand-am"]}],"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":[]}