One problem related to owners/service manual has been reported for the 2018 Jeep Grand Cherokee. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Jeep Grand Cherokee based on all problems reported for the 2018 Grand Cherokee.
Forward collision warning does not work. Dealership says the system will work correctly if the adaptive cruise control is activated. All information in the various Jeep owner's manual does not specific acc activation as a requirement. Searching the internet reveals many people experience the same problem. Jeep doesn't seem interested in helping.