{"vehicle":{"id":"2000_gmc_sierra","year":2000,"make":"GMC","model":"Sierra"},"code":"P0446","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10034428,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-11-15","date":"2010-02-01","document_id":"PIE-0043","mfr_campaign":null,"component":"FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES","summary":"CHEVROLET:GMC: ENGINEERING INFORMATION-FUEL TANK PRESSURE SENSOR, DTCS P0446, P0451 OR P0454 SET. GMC ENGINEERING IS ATTEMPTING TO DETERMINE THE ROOT CAUSE OF THE ABOVE CONCERN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034428"},{"nhtsa_id":637176,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-11-20","date":"2002-06-03","document_id":"030602","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE","summary":"SOME VEHICLES MAY DISPLAY A DIAGNOSTIC TROUBLE CODE OF P0446 (EVAP CANISTER VENT). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637176"},{"nhtsa_id":634786,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-09","date":"2010-01-01","document_id":"02-06-04-037","mfr_campaign":null,"component":"UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE","summary":"SOME CUSTOMERS WHOSE VEHICLES ARE OPERATED IN DUSTY TYPE ENVIRONMENTS, SUCH AS FARMING OR MINING OFF-ROAD TYPE APPLICATIONS, MAY COMMENT ABOUT THE ILLUMINATION OF THE INSTRUMENT PANEL SES LIGHT, WITH DIAGNOSTIC TROUBLE CODE P0446 SET. *TT UPDATED 7/11/08. *NJ UPDATED 11/5/10. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/634786"}],"url":"https://open.wenmarpro.com/makes/gmc/sierra/2000/bulletins?code=P0446"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/gmc/sierra/2000/codes/P0446","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}