{"nhtsa_id":10234306,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-04-17","date":"2023-03-02","document_id":"L-SB-0013-23","mfr_campaign":null,"replaces":null,"component":"ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); LANE DEPARTURE","mfr_system":null,"summary":"TSB: Some 2010 ? 2012 model year HS 250h vehicles may exhibit a condition where the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. One or more of the following Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, and/or C1253 will be stored in the vehicle?s memory to be used as veri+G4fication. This condition may be caused by a small brake fluid leak inside the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address this condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10234306-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10234306-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10234306","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null}],"codes":["C1252","C1253","C1256","C1391"],"topics":[],"vehicles":[{"make":"LEXUS","model":"HS 250 HYBRID","year_from":2010,"year_to":2012,"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":[]}