One problem related to automatic transmission control module has been reported for the 2009 Infiniti G37. The most recently reported issues are listed below.
I was on the highway traveling about 60-65 mph and a truck merged, I slowed then decided to pass as it was a larger type truck and slow to merge, when I stepped on the gas. . . Nothing happened. The vehicle seemed to have gone into neutral like space and I had no gear and I was half in the passing lane. I have an automatic transmission. I took my foot off the gas and it finally appeared to catch, but I thought I was going to crash. I did have shift and lag issues and just got a tcm update 05/25/2019 which appears to have solved the other problems, but I am afraid to pass on the highway because I am not sure if this issue was the same as the lagging at lower speeds and rough downshifting.