2014 porsche cayenne transmission will hang in 2nd gear frequently and the car will not accelerate. Rpm can get as high as 5000-6000 with steady gas pedal pressure. Dangerous condition pulling out into heavy traffic. Have to step on the gas pedal to get it out of second gear and the car will lurch into 3rd. Dealership said this is "normal". Nothing shows on the test equipment. Tried "sport mode", but it still does it from time to time. Worse when creeping in 2nd gear in a parking lot and need to accelerate into traffic. No way this is "normal". I have driven many models of Porsche and they all hang in second occasionally. I know there is an engine warm-up feature in every transmission where the gears are kept low until the engine warms up, but mine is far worse. Mechanic tried re-programming the computer and is convinced there is nothing wrong. This is a very dangerous problem. Why would Porsche put this type of feature in their cars if that is what this is. I have never had another vehicle do this. I have the V-6 gasoline engine. I have to drive the vehicle cross country soon and don't want a breakdown enroute. The car has 9000 miles on it, but it looks like I will have to use the manual mode if automatic keeps this up. I will eventually get run over when the car does this entering a busy street. Transient condition, most of the time the car shifts mormally.
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