Seat belt warning system not operating properly
Defect Summary
Mercedes-benz usa, llc. (mbusa) is recalling certain 2019 c300, c300 coupe, cls450, e450 coupe and s450, 2017-2019 e300, 2018 e400 coupe, e400 stationwagon, and 2018-2019 s560 vehicles that have previously had the instrument cluster replaced. 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.
Safety Consequence
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.
Corrective Action
Mbusa will notify owners, and dealers will update the instrument cluster software, free of charge. the recall began september 8, 2020. owners may contact mbusa customer service at 1-800-367-6372. mbusa's number for this recall is 2020080015.
Similar Recalls
Other recalls from Mercedes-benz Usa, Llc or involving Electrical System.
FAQ: Recall 20V449000
Your rights, the repair process, and what each field on this page means.
What is recall 20V449000?
NHTSA recall 20V449000 was issued by Mercedes-benz Usa, Llc on July 31, 2020. It addresses: Seat belt warning system not operating properly. The recall affects approximately 56 vehicles, with the defect involving the Electrical System component.
How do I get this recall repaired?
Contact any authorized Mercedes-benz Usa, Llc dealer and reference NHTSA recall ID 20V449000 or the manufacturer campaign number 2020080015. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.