One problem related to power door locks not working has been reported for the 2014 Jeep Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Jeep Cherokee based on all problems reported for the 2014 Cherokee.
Several times while I was driving the digital dash display went blank, red "battery" indicator came on, "no bus" fault message appeared, the headlights went off, the turn signal did not work, radio did not work, door locks would not work (lock/unlock). The safety issue is to lose function of headlights and turn signal while driving. Also if a crash were to occur, I may not be able to exit my vehicle in an emergency, due to not being able to unlock my doors. Between August 27, 2015 and September 14, 2015 this occurred four (4) separate times. The vehicle was turned in for service each time this occurred. The problem is intermittent, during driving it can come and go. Service department at authorized Jeep dealer stated that they do not have any instrumentation to troubleshoot can bus and they can not duplicate the issue. I would pull over into a safe area and take photos of the dash showing the faults. Service department can only reset faults as displayed on a tablet when plugged into the vehicle. Again dealer has no tools to look up bus problems, electrical contact issue, etc.