What is the reason why the key does not pop out when pressing the car key?

[DePiper]

Remote keys utilize the wireless remote control function of the central locking system, allowing doors to be unlocked and locked from a distance without inserting the key into the keyhole. Below are related explanations: 1. Solution: Prepare a pair of pliers to pull out the key. In a half-folded state, there is a small pin at the metal base of the key. Use the pliers to flatten it so it aligns with the surrounding area. 2. Additional information: Traditional mechanical keys serve the basic function of unlocking and locking car doors. While the remote control button can be lightly pressed to open and close the doors, the car engine still requires a separate mechanical key to operate. Both keys must be used together, and neither can be omitted, which can be somewhat cumbersome.

[PiperDella]

After all these years of repairing cars, I've found that when a car key won't pop out, it's usually due to an issue with the internal spring. A worn or broken spring loses its tension, causing the key to get stuck. Some key designs also include small gears or latch mechanisms, which can jam due to long-term wear or dust and debris accumulation. Dropping the key a few times is particularly problematic, as the outer casing can deform and affect the internal mechanical structure. If this happens, don't force it—you might break the key. Instead, have a professional disassemble and inspect it. To prolong your key's lifespan, avoid storing it with coins or other objects that might introduce sand into the keyhole. Paying attention to these small details can make a big difference.

[McChloe]

Last time my car key suddenly wouldn't pop out, which was quite annoying. Later I found out it was due to oxidation on the circuit board contact points behind the button, causing no response when pressed. It could also be that the key battery is running low, with unstable voltage preventing the mechanical part from activating. Another common situation is when small internal components shift after the car key is dropped, jamming the ejection mechanism. I tried opening it up to clean myself and indeed saw a lot of dust stuck in the spring gaps. I recommend regularly using compressed air to spray the key gaps, and never use liquid cleaners as they can corrode internal components. This issue isn't expensive to fix, but it really affects daily car use.

[MariaFitz]

I've been quite worried recently because the button on my BMW car key doesn't pop out when pressed. After taking it to the 4S dealership for inspection, they said the circuit board in the key module had short-circuited, possibly due to prolonged moisture exposure from keeping the key in my pants pocket. The mechanic mentioned that high-end car models have more complex key structures, with miniature motors and gears inside that are more prone to malfunction. Some car owners stick decals on their keys or use overly thick protective cases, which can jam the pop-out mechanism. Now I've developed a habit of keeping a spare key in the car. If I encounter any issues with the key not popping out, I first try replacing the battery. If that doesn't work, I have no choice but to return to the dealership for repairs.