What could be the reason that when I press the key, the car doesn't respond and the doors won't open?

I bought a Kia Sportage in 2010, and suddenly the right rear door won't open. What could be the reason? It's not the child lock issue. Also, the door handle feels loose when pulled.

If the hazard lights don't flash and the trunk won't open when you press the key, what should you do?

My M7's electric right middle door isn't working. It opens a little, and if I press it again, it opens a bit more, but it won't close completely. Experts, what could be the reason for this?

The trunk suddenly won't open, and it's showing that the trunk is unlocked. What could be the reason?

Why won't the panoramic image open? Clicking it doesn't respond, and it also doesn't switch to the camera when I put it in reverse gear. What's the reason?

The side electric sliding door of the Multivan can open, but it doesn't respond when closing. What could be the reason?

The trunk door of my X-Trail can't be opened or closed manually (I can hear a click from the manual button, but the door doesn't pop up automatically). However, it can be opened with the key. What could be the issue? Please help, thank you 🙏

What could be the reason that when I press the key, the car doesn't respond and the doors won't open?

Hey car enthusiasts, have you ever experienced the trunk opening when you press the car key to unlock or lock the car? The sensor works fine for opening and locking the doors! But when I use the key to press the trunk button, it opens. What's going on??

What could be the reasons when the vehicle displays "no key" and won't start?