CX-5 KE with FSC Gen.1 can active LKA/LAS , It's possible and I did.@freestyler : I retrofitted a FSC Gen.1 in my CX-5 KE 2016 and activated LDWS (LAS was not possible, as I did not find the fitting values for IC/FSC Gen.1). See this post. For a better understanding of LDWS see this post. And perhaps the value findings of dekor238 might help you, which can be found here.
Mazda CX-5 KE 2015 LKA/LAS test