One problem related to coolant leaking has been reported for the 2001 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Toyota Highlander based on all problems reported for the 2001 Highlander.
This is not a safety complaint. It is an attempt to get Toyota motor to admit a defect in many of their engines. Oil and coolant leaking from the engine of my 2001 Highlander. I was told by Toyota service that they found 3 stripped head bolts which cause the leak and it ended up costing me $3,500 to repair the head and block. No guarantee that the bolts would not skip out again. I have read a growing number of complaints from Toyota owners who have faced the same problem and Toyota refuses to help or admit that this maybe a engine flaw.