Toyota Highlander broken transmission issue on Toyota Highlander

Some Toyota Highlander owners report experiencing transmission issues, including gear and shift problems attributed to a faulty transmission control module (TCM), worn gear shift cables, low transmission fluid levels, malfunctioning shift solenoids, and torque converter problems. These issues can manifest as rough, delayed, or sudden shifting, lack of acceleration from a stop, shuddering, abrupt loss of power, and even early transmission failures. Owners are advised to watch for warning signs such as car overheating, loss of acceleration, rattling sounds, and gear slipping, as neglecting these symptoms can lead to more severe consequences and increased repair costs. To address these concerns, it is recommended that owners consult a professional mechanic for a proper diagnosis and tailored repair solutions, as being proactive can help prevent further damage and ensure the longevity of the vehicle.