Mercedes-Benz software in the replaced instrument cluster may cause the seat belt warning system to not operate properly, only displaying a solid warning light if either the driver or passenger seat belt is unfastened, instead of a blinking light with an audible tone.
The short version
Mercedes-Benz USA, LLC. reported a problem with the electrical system software. Here is what owners need to know.
The software in the replaced instrument cluster may cause the seat belt warning system to not operate properly, only displaying a solid warning light if either the driver or passenger seat belt is unfastened, instead of a blinking light with an audible tone.
Without the audible tone and blinking warning light to remind the front seat occupants that their seat belts are not buckled, they may forget to buckle their seat belt, increasing their risk of injury in the event of a crash.
MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge.
Affected vehicles
These model years are included in NHTSA campaign 20V-449.
| YEAR RANGE | MODEL |
|---|---|
| 2019 | Mercedes-Benz C-Class |
| 2019 | Mercedes-Benz CLS-Class |
| 2017–2019 | Mercedes-Benz E-Class |
| 2018–2019 | Mercedes-Benz S-Class |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
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Check your VINWhat this record means
Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
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