When pressing smart key to start engine, interior lights & headlights flash rapidly with rapid clicking sound under hood (similar to dead battery sound). After attempting several times to start, a "smart key malfunction - refer to owners manual" message appears. Car is only 4 months old, 1500 miles. Heard 2020's may have battery issues or some drain causing dead battery issues. Can't contact Service dept for 2 days due to holiday weekend. Anyone else experiencing same problem? Aware if cause found and if fix is available?
I have been having this issue every since I replaced my trans filter, gasket, and pan when ever I slow down or brake too hard it feels like it's about to stall out. (It did once already) trans fluid is at the full mark or just a hair above the mark.