One problem related to door hinge has been reported for the 1999 Jeep Cherokee. The most recently reported issues are listed below.
As my husband and I were on our way to a relatives last weekend, the passenger side window lowered on it's own. I tried to roll it up with the drivers control, and my husband tried with the passenger control ( which has never worked well) but the window just continued to go down. I had my son look at it and he took everything off including door panel, and speakers, but he was not familiar with Jeep windows and could not determine how to fix it. In the meantime, I have checked out some websites on this problem and found out that this is an ongoing problem with Jeeps. Now it is going to cost me between $250. 00 and $600. 00 to repair . Please do something about this so no one else will have such an unexpected expense.