I just took my MKZ 2017 back to the dealer twice for the light flickering issue. The first time they said they fixed it. Obviously they didn't hence me taking it back for the 2nd time. The 2nd time they said they checked other MKZ's on the lot and they all do the same thing. So there answer is, "it's supposed to do that". WHAT!? I just thought this was the answer they only gave to women. Also my car battery drained overnight for no apparent reason. They never found any lights that were left on, no doors were open, nothing. But sure enough the battery was drained.