One problem related to brake grinding noise has been reported for the 2006 Toyota Highlander Hybrid. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Highlander Hybrid based on all problems reported for the 2006 Highlander Hybrid.
While driving on a residential road the brake system failed to properly stop the car. This issue first happened in January 2017. At that time I took the car in and had the brake actuator assembly replaced under a limited service recall by Toyota and the replacement actuator assembly also failed within 18 months. While driving through a residential area the brakes again failed to stop the car, making a grinding noise and jerking to a halt after pressure applied to the brake pedal. Because the actuator assembly was replaced under the limited service recall Toyota denies any culpability in the failure of the replacement part and refuses to offer further assistance.