Two problems related to transmission noise have been reported for the 2011 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Toyota Highlander based on all problems reported for the 2011 Highlander.
When car goes above around 35-45 mph a abnormal whine noise emanates from the transmission.
When car goes above 38 mph a abnormal whine noise emanates from the transmission.