{"nhtsa_id":10221355,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2021-06-30","document_id":"0810621REVA","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"12V Battery Low Charge This bulletin involves testing and possibly replacing the 12V battery. Technicians or customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: U3007-00 - Control Module Input Power \"B\" Circuit/Open. C2100-00 - Battery Voltage Low. C05A4-00 - Wheel Speed Sensors Supply Circuit Low. C2129-00 - Battery Voltage. U3006-00 - Control Module Input Power \"A\" Circuit/Open. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. B21DD-84 - System Voltage-Signal Below Allowable Range. B2199-16 - Battery Voltage-Circuit Voltage Below Threshold. Technicians or customers may also experience one or more of the following:Depleted 12V battery at delivery to dealer. Vehicle will not start.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221355-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10221355-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221355","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["B2199","B21DD","C05A4","C2100","C2129","U3006","U3007"],"topics":[],"vehicles":[{"make":"JEEP","model":"WRANGLER","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_jeep_wrangler"]}],"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":[]}