What causes the Highlander's trunk door to not open?
2 Answers
Highlander's trunk may not open due to issues with the linkage rod or lock cylinder, failure to unlock, or mechanical component failure. Below are detailed explanations and solutions: Linkage rod or lock cylinder issue: Solution: Take it to a repair shop. If you've been using the remote to open the trunk, the lock cylinder might be dirty or rusted. Spraying rust remover into the lock cylinder a few times can help open it. Failure to unlock: Solution: Press the unlock button on the key, or check if the key battery is dead. Mechanical component failure: Solution: Repair the faulty part. The trunk itself might have issues, such as a broken wire or other problems causing the trunk to not open.
My car repair experience tells me that when the Highlander's trunk won't open, it's often an issue with the power tailgate system. This vehicle comes with automatic features, and common causes include the remote key battery being depleted. Try manually pressing the unlock button on the car key; if you hear a click but the door doesn't move, it indicates the actuator is stuck or the wiring connector is loose. Another possibility is a sensor malfunction, where dust or accumulated moisture in humid weather causes the door lock to misread signals and fail to respond. There's also the chance of a control module software error—for instance, if you recently washed the car or had a collision, the system might develop a bug. Additionally, check if the relevant fuse in the fuse box has blown; its location is usually under the glove compartment. I recommend trying manual unlocking first to see if it opens. If that doesn't work, visit a 4S shop as soon as possible for a professional diagnosis rather than forcing it open to avoid damaging the door structure.
