{"vehicle":{"id":"2002_gmc_sonoma","year":2002,"make":"GMC","model":"Sonoma"},"code":"P0894","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10114916,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2015-10-21","document_id":"PIP5340","mfr_campaign":null,"component":"POWER TRAIN","summary":"This Preliminary Information communication provides information to the technician about vehicle that after a transmission or torque converter replacement the vehicle may have a harsh 1-2 upshift and the Check Engine Light or Service Engine Soon indicator is illuminated. If you have duplicated the customer?s concern and found Diagnostic Trouble Code P0894 or P1870 set in the Transmission Control Module please contact General Motors Technical Assistance Center.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114916-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10114916-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10114916"},{"nhtsa_id":10096073,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-03-21","date":"2016-02-17","document_id":"PIP5340A","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER","summary":"THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT AFTER A TRANSMISSION OR TORQUE CONVERTER REPLACEMENT THE VEHICLE MAY HAVE A HARSH 1-2 UPSHIFT AND THE CHECK ENGINE LIGHT OR SERVICE ENGINE SOON INDICATOR IS ILLUMINATED. IF YOU HAVE DUPLICATED THE CUSTOMER’S CONCERN AND FOUND DIAGNOSTIC TROUBLE CODE P0894 OR P1870 SET IN THE TRANSMISSION CONTROL MODULE PLEASE CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER.","document":null,"url":"https://open.wenmarpro.com/bulletins/10096073"}],"url":"https://open.wenmarpro.com/makes/gmc/sonoma/2002/bulletins?code=P0894"},"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/sonoma/2002/codes/P0894","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."]}