One problem related to battery dead has been reported for the 2009 Jeep Grand Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Jeep Grand Cherokee based on all problems reported for the 2009 Grand Cherokee.
Vehicle would not start. Completely dead. Vehicle was towed to dealer. Dealer said battery was bad. Replaced battery. Vehicle was ok for 3 days. Same problem occurred. This time dealer found vehicle was not getting proper voltage to transmission. Needed wiring harness replaced. Very expensive repair job. Lucky for me I have a "lifetime" warranty on power train. I am wondering if the transmission would stopped working if I was moving??? I talk to some with a 2007 model and the same thing happened.