I've had my 2017 Titan almost two months and the one thing that I have noticed with the 7 speed transmission is its unpredictable shift patterns when it shifts from 4th to 5th. Under normal driving, around 15% of the time it will shift from 4th to 5th at around 55 km/hr BUT the rest of the time, it won't shift into 5th until 70 km/hr. At times, this is getting frustrating. I haven't taken it into the dealership yet as I'm interested in hearing from other Titan owners with the 7 speed transmission to see if anyone else is experiencing this situation.