{"nhtsa_id":10244709,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-02","date":"2023-11-02","document_id":"N232421260","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU):SOFTWARE; POWER TRAIN; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY","mfr_system":null,"summary":"Service Update - Certain vehicles may have a condition in which a false diagnostic trouble code (DTC), U3636 symptom 09, is triggered. This false DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), a Reduced Propulsion message, and a charging limited to 30% State of Charge. Since this is a false DTC, it can lead to unnecessary battery pack replacements. Dealers are to reprogram the Hybrid Powertrain Control Module 2.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244709-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244709-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244709","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"hybrid-ev","name":"Hybrid and electric drive","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"fuel-tank","name":"Fuel tank","parent":"fuel-system"}],"codes":["U3636"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"BOLT EUV","year_from":2022,"year_to":2022,"match":"exact","vehicle_ids":["2022_chevrolet_bolt-euv"]},{"make":"CHEVROLET","model":"BOLT EV","year_from":2020,"year_to":2022,"match":"exact","vehicle_ids":["2020_chevrolet_bolt-ev","2021_chevrolet_bolt-ev","2022_chevrolet_bolt-ev"]}],"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":[]}