How to Solve the Issue of BMW Trunk Automatically Opening?

[MacEdward]

It is necessary to confirm whether there is a key inside the car. When the car detects the key inside, the trunk cannot be closed, which causes the trunk to open automatically frequently. Below is an introduction to BMW cars: 1. Category: BMW is one of the three major German luxury car brands. Its car models include the BMW 1 Series, BMW 2 Series, BMW 3 Series, BMW 4 Series, etc., as well as the M Series, which is improved based on these series. 2. Power Advantage: Competing brands include Mercedes-Benz, Audi, etc. BMW focuses on the research, development, production, and sales of high-end cars. The cars produced by BMW rank among the top in the world's automotive brands, founded in 1916. BMW pursues the goal of creating high-quality, high-performance, and high-tech cars. The acceleration and high-speed performance of BMW cars are among the best in the world's automotive market. Many countries use BMW cars as police vehicles, demonstrating the outstanding power performance of BMW cars.

[LaJulian]

My family drives a BMW, and I've encountered this issue as well. Simply put, the trunk keeps opening automatically, which is quite annoying. I later found out that the most likely cause is accidental key presses, like when the key is in your pocket and you accidentally press the button. Here's a small trick to try: avoid keeping your car key squeezed together with other items. If that doesn’t work, it might be due to a worn-out button or a faulty sensor. I spent a little money replacing the car key battery because a weak battery can mess up the signals. Of course, another possibility is a bug in the electronic system—some BMW trunks have automatic sensors, so a software reset might fix it. As for the method, turn off the car’s power and wait a few minutes before restarting, or follow the reset procedure in the manual. Whatever you do, don’t force the lock, or you might damage the trunk mechanism. I recommend checking the key’s condition regularly—keep it away from water or drops. After spending a few hundred bucks on repairs, I’ve hardly had this issue since. Make it a habit to check the key’s position before driving—it saves a lot of hassle.

[JuneDella]

Buddy, I just went through this - my BMW's trunk kept opening by itself several times, forcing me to run to the garage at midnight to check. Initially thought it was a key fob issue, but after testing realized the button sensitivity was too high, probably due to wear over time. Here's what I did myself: First checked the key - replacing the battery is super easy, just order a small battery online and it takes minutes; also check if the key casing is cracked causing accidental button presses. If the key's fine, it might be the trunk button or sensor in the car. I temporarily fixed it by placing a small tool over the button to prevent accidental presses. Later learned BMW's onboard system sometimes glitches too - try fully powering off the car for a while then restarting. If that doesn't work, visit the dealership to check the circuit - short circuits can be dangerous. For safety, remove valuables from the trunk when this happens. My mechanic friend advised regular maintenance checks - don't delay. Other cars have similar issues too, like EVs with more sensitive buttons. Much more confident driving it now.

[VonEmma]

When I first bought my car, I also experienced the BMW trunk opening randomly, which gave me a real scare. The issue is likely with the key: either the battery is weak or the button is dirty, interfering with the signal. What's the solution? First, remove all items from the car and ensure the trunk is securely locked, then try replacing the key battery—it's super simple. If that doesn't work, check if the trunk button on the car is faulty and clean the contact points with a cotton swab dipped in water. Don't overlook system bugs; connect your phone to the car's app to see if there are any updates or reset options. In short, don't panic—troubleshoot step by step to save both time and repair costs.