A Mercedes-Benz sedan
Photo: Mercedes

Mercedes-Benz USA is recalling 29,679 vehicles from its 2018 and 2019 model years because a correctly latched seat belt may erroneously be identified as unfastened. As a result, audible and visual alerts will activate to notify the driver and passenger that a seat belt is not properly secured. This could also lead to other safety systems not properly functioning in the event of a crash, which could lead to injuries.

When it received complaints of the problem, Mercedes-Benz conducted an investigation. The manufacturer and one of its suppliers determined that the problem stems from the geometry of the seat belt buckle. Subsequent investigations determined that another supplier was using a tool with excessive wear to create the seat belt buckle, which caused the problem.

Mercedes-Benz did not note in its recall notifications if it’s aware of any crashes or injuries associated with this problem. The automaker said that 1,263 of these recalled vehicles are still on dealers’ lots.

Photo: Mercedes

The Details

Vehicles recalled: 29,679 Mercedes-Benz vehiclez from the 2018 to 2019 model years:

  • 2019 Mercedes-Benz AMG GT 63

  • 2019 Mercedes-Benz AMG GT 63 S

  • 2019 Mercedes-Benz CLS450

  • 2019 Mercedes-Benz CLS53

  • 2018-2019 Mercedes-Benz E300

  • 2018 Mercedes-Benz E400

  • 2018 Mercedes-Benz E43 AMG

  • 2019 Mercedes-Benz E450

  • 2019 Mercedes-Benz E53

  • 2018-2019 Mercedes-Benz E63S AMG

  • 2019 Mercedes-Benz G550

  • 2019 Mercedes-Benz G63

  • 2019 Mercedes-Benz GLC300

  • 2019 Mercedes-Benz GLC350E

  • 2019 Mercedes-Benz GLC43 AMG

  • 2019 Mercedes-Benz GLC63

  • 2019 Mercedes-Benz GLC63 AMG

  • 2018-2019 Mercedes-Benz GLC63S AMG

The problem: A manufacturing defect may lead to a correctly latched seat belt being erroneously detected as not being properly latched. The occupant of the seat will be alerted with both audible and visual signals that the belts is not secured. Because of this problem, the seat belt pretensioners (which lock the belt in place in the event of a crash) and a Mercedes-Benz safety system may not be activated.

The fix: Mercedes-Benz USA (MBUSA) will notify owners by mail, and dealers will inspect the front seat belt buckles, replacing them as necessary, free of charge. The recall is expected to begin Dec. 31, 2019. 

How to contact the manufacturer: Owners may contact MBUSA customer service at 800-367-6372. There is no manufacturer recall number at this time.

NHTSA campaign number: The NHTSA campaign number is 19V-788.

Check to see whether your vehicle has an open recall: NHTSA’s website will tell you whether your vehicle has a recall that needs to be addressed.

If you plug your car’s 17-digit vehicle identification number (VIN) into NHTSA’s website and a recall doesn’t appear, it means your vehicle doesn’t currently have one. Because automakers issue recalls often, and for many older vehicles, we recommend checking back regularly.

Stay informed about recalls that might affect your vehicle by using our Car Recall Tracker. Create a free account now to become a CR member.