Why is the trunk button not responding?

[VonJuliana]

The trunk unlock button not responding may indicate a malfunction, specifically the trunk button failure, which requires handling based on the specific situation. Reasons why the car trunk cannot be opened: Linkage rod or lock cylinder issue: If you frequently use the key to open the trunk, the linkage rod may be broken. Take it to a repair shop. If you always use the remote control to open the trunk, the lock cylinder may be dirty or rusty. Spray some rust remover into the lock cylinder a few times to open it. Not unlocked: The trunk is difficult to open because it hasn't been unlocked with the remote key. Before opening, it's best to press the unlock button on the key or check if the key battery is dead. Mechanical part failure: The trunk itself may have issues, such as a broken wire or other reasons causing it not to open. Five-door cars generally cannot be opened from inside: Some hardcore off-road vehicles, to prevent accidental activation during driving which could cause casualties, usually do not have an interior trunk switch. Therefore, the trunk can only be opened from outside. The car trunk is like a small storage room where you can place the car's spare tire, tire-changing tools, warning triangle, fire extinguisher, and luggage or other items.

[DelCalvin]

Last time my car's trunk button malfunctioned, and after troubleshooting, it turned out the remote key fob battery was dead. When the electronic key's battery runs low after prolonged use, it can't sense and unlock when near the trunk button. Another possibility is poor contact in the button itself, such as debris jamming the button or rust on the contacts. A common reason is the vehicle's anti-theft system entering a protection state, especially if the button is pressed repeatedly, triggering a false operation lockout. It's recommended to first try manually opening the trunk with the mechanical key or check if the interior trunk switch works. If the key fob battery hasn't been replaced in over two years, changing the coin cell battery costs just around ten yuan. By the way, some car models' trunk latches accumulate dust—spraying a bit of WD-40 for lubrication might solve the issue.

[RyderAnn]

From a repair experience perspective, trunk button malfunctions are often caused by three scenarios. First is a blown fuse - power liftgates rely more on circuit protection than mechanical locks. Check the 15A mini fuse labeled 'Trunk' in the fuse box under the driver's side dashboard for any signs of melting. Second is a faulty latch assembly, particularly when sand and mud seep in after rain, which often destroys the micro motor - this is quite common in Japanese vehicles. Third involves communication failure in the body control module, since everything is now electronically controlled. You can force a signal reset by pressing and holding the remote unlock button three times consecutively. If you hear a clicking sound near the tailgate when pressing the button with the key fob present but it won't open, there's an 80% chance it's a latch mechanism issue.

[MacDaniela]

Friends who have encountered similar situations should pay attention to this detail: When the electric tailgate is unresponsive, check the dashboard. If the door ajar icon is displayed, the trunk will be forcibly locked by the system. Many modern vehicles also feature a sensor lock function, which automatically stops operation if obstacles are detected under the trunk. Inspect the closing sensors at the threshold edge for any stuck leaves or debris. Additionally, low winter temperatures can harden rubber seals, and ice buildup around the rear frame may prevent the latch from engaging—pouring some warm water can resolve this. For vehicles with modified circuits, it’s crucial to check if any added wiring has come loose. Finally, here’s a lesser-known tip: Sudden locking in Volkswagen models is part of an anti-misoperation mechanism; disconnecting the negative battery terminal for five minutes can reset it.