2004 jeep grand Cherokee pass rear door window goes down but not up?

Answer 1

If the window won't go up from only one switch it is most likely that switch. If it won't go up from the driver controls or the control on that window's door, then you probably have a problem with the window motor.

Answer 2

Each window has its own motor. The most likely culprits are that the electrical connection for those windows have lost their contact at one of three locations. The motor itself, the drivers control switch, or the switch at the window that is not working.

I would like to tell that they are easy to get to but they are not.

Also many vehicles have a passenger window lockout switch located on the main switch panel on the drivers side. Activating this switch keeps children and pets from accidently operating the windows.