{"nhtsa_id":10221221,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2021-04-29","document_id":"25002211","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Flash: Dosing Control Unit (DCU) Updates This bulletin involves reprogramming the Dosing Control Unit (DCU) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0563-00 - System Voltage High(2020 M6 Vehicles only). P21CC-00 - Reductant Control Module Supply Voltage High(2020 M6 Vehicles only). P24B2-00 - Particulate Matter Sensor Circuit Intermittent. P20F6-00 - Reductant Injection Valve Stuck Open Bank 1 Unit 1. P208E-00 - Reductant Injector Stuck Closed - Bank 1 Unit 1. Incompatible software between the DCU, Powertrain Control Module (PCM) and BCM causing a false illumination of the Malfunction Indicator Lamp (MIL). Additional customer concerns:Engine Stop/Start (ESS) not functioning properly. Four wheel drive not functioning.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221221-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221221-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221221","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P0563","P208E","P20F6","P21CC","P24B2"],"topics":[],"vehicles":[{"make":"JEEP","model":"COMPASS","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_jeep_compass","2020_jeep_compass"]}],"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":[]}