The 2018 Mercedes-Benz AMG GLC63S has 3 recalls, the most serious involving the frontal airbag and seatbelt pretensioner system, both of which can fail to respond properly in a crash and leave occupants with less protection than expected.
Two of the recalls affect crash response directly: the front passenger airbag can deploy late for unbelted occupants, and the seatbelt pretensioners along with the pre-crash tensioning system may not activate at all during a collision. The third recall involves the passenger seat sensor, which can incorrectly show the passenger airbag as active when it is actually suppressed, meaning a front seat occupant may assume they have airbag protection when they do not.
At a glance
What can fail
The front seat belt buckles may be incorrectly detected as unfastened even when properly fastened, which can disable the PRE-SAFE® function and pretensioner.
What the fix does
Dealers will inspect and replace front seat belt buckles as needed at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
In a crash, the front air bags may deploy too slowly for unbelted front-seat passengers, reducing protection.
What the fix does
Dealers will update the air bag control unit software to correct deployment timing at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The passenger side air bag status may not display correctly on the instrument cluster in certain 2018-2019 C-Class and GLC-Class vehicles with Audio 20 head units.
What the fix does
Dealers will update the audio head unit software at no cost to correct the air bag status display.
Summarized — see the official notice for exact wording, dates, and contacts.
