Two problems related to exterior lighting have 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.
The wire harness going to the driver door is not long enough so when you open the door the wires will become lose or disconnect as a result in the power locks,power mirrors,power windows, evic center to malfunction and the all the dome lights remain on. And I'm not the only vehicle to have had this problem there are hundreds wrote on the Jeep forum.
Intermitent failure of right stop light and tailight even after bulb replacement.