Reading these threads makes me glad I delayed acting on my "Positive engagement in drive position D delayed" issue. I am all set to
replace the fluid and filter but wonder if a TSB or firmware or software update could solve this problem. It occurs only when cold. Works better if initially shifted into M1 but some delays may still occur. It seems to depend on the ambient temperature and how long it's been sitting. Always worse in the morning. Otherwise it shifts responsively smooth up an down without delay. I have driven it hard and it feels tight and smooth. Only has 61K miles. Please advise...