Mercedes-Benz USA (MBUSA) is recalling 104,663 of the following vehicles equipped with Audio 20 head units and automatic child seat recognition:
Model year 2018 C300 Cabriolets, C300 Coupes, C300 4Matic Cabriolets, C300s, C300 4Matic Coupes, C300 4Matics, C43 AMG Cabriolets, C43 AMG Coupes, C63 S AMG Cabriolets, C350e Plug-In Hybrids, C63 AMG Cabriolets, C63 AMG Coupes, C63 S AMG Coupes, C63 AMGs, C63 S AMG; and
Model year 2018-2019 GLC300 4Matic Coupes, GLC300s, GLC63 AMG Coupes, GLC300 4Matisc, GLC350e Plug-In Hybrids, GLC43 AMG Coupes, GLC43 AMGs, GLC63 S AMG Coupes and GLC63 AMGs.
The status of the passenger side airbag may not display correctly.
If the passenger airbag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the airbag will not deploy in the event of a crash, increasing the risk of injury.
What to do
MBUSA will notify owners, and dealers will update the audio head unit software, free of charge.
The recall is expected to begin January 2, 2019.
Owners may contact MBUSA customer service at 1-800-367-6372.