MERCEDES-BENZ
LI54.71-P-080653
Manufacturer communications
- Publication date
- 2026-05-28
- Received by NHTSA
- 2026-05-28
- NHTSA record numbers
- 11032968
Manufacturer summary
Original wording in English
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. 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 Check for new MB.OS update on May 29, 2026 from 1.3.7 to 1.3.10. If available, update and bus sleep (30 minutes). Re-check vehicle after bus sleep for presence of cluster message. If message has cleared and concern is resolved, release the vehicle. If not, open a TIPS case to Body, Chassis, and Entertainment inbox.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Mercedes-Benz
U142791"Implausible data were received from the control unit 'Head unit'Check vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Mercedes-Benz | CLA 250+ (EV) | 2026 |
| Mercedes-Benz | CLA 350 4MATIC (EV) | 2026 |