{"nhtsa_id":11033805,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-12","date":"2026-06-11","document_id":"LI54.71-P-080653","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"Complaint After updating MB.OS to 1.3.7, every key cycle displays consistent instrument cluster message \"Driver Assistance System Functions Limited Please Drive with Caution See Operator's Manual\". Note: Verify this is the exact message, there are other variants of white ADAS cluster messages. To verify MB.OS number, it can be found in: 1. A26/17 in Xentry under version or 2. VeDoc > Vehicle Information for Control Units (below reference, vehicle is on 1.3.0) The driver assistance control unit N62/5 Processor will also have an active and stored DTC U142791 - \"Implausible data were received from the control unit 'Head unit'. The parameter is outside the permissible range.\" Cause Under Determination. Remedy Update vehicle software to MB.OS 1.3.10, it is available. If message has cleared and concern is resolved, release the vehicle. If not, open a TIPS case to Body, Chassis, and Entertainment inbox.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033805-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033805-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033805","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["U1427"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"CLA 250+ (EV)","year_from":2026,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"CLA 350 4MATIC (EV)","year_from":2026,"year_to":2026,"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":[]}