2004 Nissan Maxima drivetrain & axles problems

2004 nissan maxima all features had locked up. Consumer tried to fix the problem, when trying the car jumped out of park and rolled down the driveway hitting a taurus and a trailer. Airbags did not deploy. ***nar*** the consumer was injured and as the vehicle was rolling down the driveway a family member, which the vehicle nearly missed fell backwards and broke her wrist. The consumer stated there was no reason for the gear shift to lock or for the vehicle to jump and roll.

I bought a brand new 2004 nissan maxima when they first came out, and everything was perfect. Nothing was wrong with it, and it drove smoothly. A few months ago, after hitting about 70,000 miles the transmission has been messing up. If the car is shifting up or down, into 1st, 2nd, or 3rd gear, it jerks. The more the car heats up, the harder the car jerks. It was jerks if I'm shifting into drive. There have been times when the car revs up to 5,000 rpms and jerks very hard.