One problem related to engine exhaust system has been reported for the 2003 Jeep Grand Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Jeep Grand Cherokee based on all problems reported for the 2003 Grand Cherokee.
My 2003 Jeep Grand Cherokee ltd is having problems with the defroster, the heater, and air conditioner. It has driver and passenger climate controls. Initially, the passenger side stopped functioning. Eventually, the driver side heat and air stopped working. The defroster is barely working and only on the fan control.