When outside temperature was less than about 50 degrees, the engine would start and then die. It would finally stay running after repeated attempts. The colder it was, the more attempts it took. Discovered that turning the key on and leaving it for a few minutes (the colder it was, the longer it took) before starting would resolve the issue. Did this for two winters before it finally failed to do the trick any longer. The dealer replaced the All Activities module and resolved the issue, as well as an intermittent sluggish transmission shift when it was cold.