One problem related to underbody shield has been reported for the 2002 Jeep Liberty. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Jeep Liberty based on all problems reported for the 2002 Liberty.
Emergency brake cable was to close to speed sensor cable and rubbed through causing cruise to surge & speedometer to 0 mechanic told me it was poorly designed. It was acting up for about 2 weeks before it failed completely.