What is the reason why the trunk cannot be locked when the car door is locked?
2 Answers
The reasons why the trunk cannot be locked when the car door is locked are: 1. The use of excessively stiff spring rods to allow the rear hatch to automatically rise after pressing the opening switch; 2. The mismatch between the closing limit rubber block and the locking mechanism; 3. A malfunction in the trunk control circuit; 4. A failure in the trunk hydraulic support rod. Faced with the situation where the trunk cannot be closed, most car owners can only try to use more force to close it tightly. If it is really caused by the above reasons, using more force will only worsen the damage. The correct approach should be to drive the vehicle to a repair shop for inspection. If it is found that the car door cannot be locked, a relatively simple method is to use the spare mechanical key to lock it.
I've encountered this issue before—the doors lock just fine, but the trunk refuses to close. I figure the most common culprit is the trunk lock itself. The lock mechanism might be jammed with debris, the spring could be worn out, or the motor might have failed. Another possibility is overstuffing the trunk, which can prevent the latch from engaging. Also, when the remote key fob's battery is running low, the signal may weaken, allowing the doors to lock but not the trunk. Wiring issues are another strong candidate, especially in vehicles with modified wiring—loose connectors or rodent-chewed wires could be to blame. If the lock mechanism isn’t properly aligned, you might need to slam the trunk shut with a loud 'clunk' to get it to latch. My advice? First, try manually locking the trunk with the key. If that works, you’ve ruled out a mechanical failure. Otherwise, head to a repair shop ASAP—a trunk that doesn’t seal properly creates terrible wind noise at high speeds and risks water leaks.
