{"nhtsa_id":11020020,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-07-01","date":"2025-06-23","document_id":"TSB-0625-02","mfr_campaign":"S102793E, S069119E, S081559C, S102807C","replaces":null,"component":"POWER TRAIN; FUEL/PROPULSION SYSTEM","mfr_system":"VCU TCU BMS OTA","summary":"The updated VCU software includes enhancements for 12V and high-voltage battery conditioning, as well as resolving issues with incorrectly stored faults. The revised TCU software enhances the thermal management system and eliminates erroneously stored faults. The updated OTA software enables TCU and BMS diagnostics to be reported over the air. Additionally, the improved BMS software enhances fault detection and decreases the overall time required for cell balancing.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020020-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11020020-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11020020","components":[{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BOLLINGER MOTORS","model":"B4","year_from":2025,"year_to":2025,"match":null,"vehicle_ids":[]}],"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":[]}