One problem related to underbody shield has been reported for the 2006 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota 4Runner based on all problems reported for the 2006 4Runner.
We had the 4 runner service for oil change and inspection when they found the frame completely rusted through and none repairable we still have to make payments.