The subject matter of the invention is an airbag flap system for triggering an airbag of a vehicle dashboard in a fragment-free manner at sub-zero temperatures, having: a lid assembly which points towards a vehicle interior and which comprises a polymer, wherein the lid assembly has a frame body having at least one flap segment which has peripheral depressions; wherein the peripheral depressions generate at least one rectangular basic structure; and a deployment chute assembly which is connected to the lid assembly and comprises a polymer, wherein the deployment chute assembly has a main body and at least one flap body; wherein the main body is configured so as to cover the frame body, and wherein the at least one flap body is configured so as to cover the at least one flap segment; wherein the peripheral depressions of the rectangular basic structures of the lid assembly have at least two different material thicknesses. The present invention also relates to a lid assembly for the afore-mentioned airbag flap system. The present invention furthermore relates to a deployment chute assembly for the afore-mentioned airbag flap system.