{"vehicle":{"id":"2016_jeep_grand-cherokee","year":2016,"make":"Jeep","model":"Grand Cherokee"},"code":"U0404","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":10221548,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2016-07-23","document_id":"21-011-16","mfr_campaign":null,"component":"POWER TRAIN; AIR BAGS; EXTERIOR LIGHTING; ELECTRICAL SYSTEM","summary":"Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · U0404 - Invalid Data Received From Gear Shift Control Module \"A\". In addition, customers may experience the following conditions: · Bumps on 2 - 1 down-shift while braking. · The M on the shifter and Instrument cluster may be blinking. The following improvements are included in this update: · **Improved 2 - 1, 3 - 2 and 6 - 5 down-shifts (6.4L only).** · Improved 1 - 2 light throttle up-shifts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10221548-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10221548-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221548"},{"nhtsa_id":10140237,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2016-03-09","document_id":"21-011-16","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Transmission Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: U0404 - Invalid Data Received From Gear Shift Control Module \"A\". In addition, some customers may experience the following condition: The M on the shifter and Instrument cluster may be blinking.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140237-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10140237-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140237"},{"nhtsa_id":10136530,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-14","date":"2016-07-23","document_id":"21-011-16 REV. B","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · U0404 - Invalid Data Received From Gear Shift Control Module \"A\". In addition, customers may experience the following conditions: · Bumps on 2 - 1 down-shift while braking. · The M on the shifter and Instrument cluster may be blinking. The following improvements are included in this update: · **Improved 2 - 1, 3 - 2 and 6 - 5 down-shifts (6.4L only).** · Improved 1 - 2 light throttle up-shifts.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10136530-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10136530-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10136530"},{"nhtsa_id":10121646,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-11-03","date":"2016-07-07","document_id":"21-011-16 REV. A","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the TCM memory: · U0404 - Invalid Data Received From Gear Shift Control Module \"A\". In addition, some customers may experience the following conditions: · **Bumps on 2 -1 down-shift while braking.** · The M on the shifter and Instrument cluster may be blinking. The following improvements are included in this update: · **Improved 1 - 2 light throttle up-shifts.**","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121646-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10121646-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121646"}],"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2016/bulletins?code=U0404"},"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/jeep/grand-cherokee/2016/codes/U0404","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."]}