I think my dealer is lying to me. I asked and he said only the drivers window switch is backlit, not the other three. I also asked him to perform the TSB related to the fuel cap replacement, and they told me that issue was closed for my car's VIN. I told him how could it be closed, when it obiviously has the old fuel cap installed. Looks I will need to find an honest dealer repair shop.
I bet they kept all the new fuel caps that KMC sent them to sell to customers, instead of replacing them on their instock inventory.