Why is the trunk not responding when pressing the key?
3 Answers
Here are the solutions for when the trunk does not respond to the key: 1. The car key is damaged or has no battery. Replace the battery if it's dead; if damaged, visit an authorized repair shop. 2. If the button on the driver's side also fails to open the trunk, check the trunk's condition via the rear seat emergency escape channel. Below are the reasons why the trunk may not open: 1. Poor contact between the trunk opening button and the PCB board (key circuit board). 2. If the trunk can be manually opened and closed, the trunk switch is not the issue. The trunk control unit program may be malfunctioning.
Recently, I encountered the same issue while driving—pressing the remote key to open the trunk yielded no response, which was quite frustrating. Reflecting on my own experience, it’s likely that the key battery is dead, especially for older keys that have been used for several years, as the battery tends to drain and requires replacement. Another possibility is that the key itself is faulty, such as an internal circuit short or malfunction after being dropped. Try testing if the remote works for other doors first; if not, try using a spare key. If the key functions normally, the issue might be a stuck trunk lock or poor contact due to aged wiring—clean the lock hole and see if you can open it manually. Additionally, parking in areas with strong signal interference, like underground garages with many devices, can affect the remote signal—try moving to a different spot. If all else fails, it’s best to visit a repair shop for a check-up to avoid forcing anything and causing damage.
I've seen many cases where the car trunk won't open with the key. Generally, start checking from the simplest possibilities. The most common issue is a dead key battery – replacing the coin cell might solve it, and it's not expensive. But if it still doesn't work after changing the battery, the trunk lock mechanism might be faulty, such as a stuck lock cylinder or broken spring. Sometimes dust or debris can cause mechanical failure – try gently tapping near the lock or manually turning the key. Some cars have an emergency release lever inside the vehicle; you can crawl into the back seat to look for that small pull ring. Another possibility is the car's anti-theft system malfunctioning, where the vehicle thinks someone is stealing from the trunk and locks the system. Restarting the key or disconnecting the battery for a few minutes before reconnecting might restore functionality. In any case, don't panic – systematically troubleshooting step by step will help identify the root cause.
