Toyota Highlander AWD problem displayed on computer screen, check with dealership on Toyota Highlander

Some Toyota Highlander owners report experiencing issues when the computer screen displays a "Check AWD System" message, indicating potential problems with the all-wheel-drive mechanism. These owners often find it necessary to contact a dealership or qualified mechanic for accurate diagnosis and repairs to prevent further damage. Common causes for this warning include faulty sensors, which are crucial for monitoring wheel speed, throttle position, and steering angle to ensure proper power distribution. Additionally, those with access to diagnostic codes like P0174 and P0171 report that these codes can help professionals pinpoint specific issues within the AWD system. Regular maintenance is emphasized by some owners as essential for the proper functioning of the AWD system, helping to detect potential problems early. Furthermore, some owners note that being aware of unusual symptoms such as noises, vibrations, or handling issues can aid in identifying AWD system problems, making prompt action critical when the warning message appears.