One problem related to transmission gear slipping has been reported for the 2006 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Highlander based on all problems reported for the 2006 Highlander.
Car jerks as moving into the wrong gear. Also stumbles as if the transmission is slipping and then jerks into a gear lurching forward. The car also surges at times without warning. Told repeatedly at dealer they can't find anything wrong.