Trunk malfunction trunk only opens with key and manual assistance

Let's troubleshoot this issue:

Valet Mode:
First, check if the trunk is in valet mode. Some vehicles have a setting that prevents the trunk from opening using the key fob or the dash button when in valet mode.
Look under the trunk at the top of the license plate area. You'll find a key slot there. Use the physical key section of your key fob to open the trunk manually.

Child Locks:
Ensure that the child lock feature is not accidentally engaged. If it is, the trunk won't open from the outside handle switch.
Switch the child lock to the unlock position and try pulling the trunk handle again before closing the door.

Trunk Release Relay:
If the above steps don't resolve the issue, there might be an issue with the trunk release relay.
Check if there's ground at the switch in the glove compartment when you activate the release switch on the door, the trunk release on the key fob, or the rear handle.
Use a paperclip to jumper between the #30 and the #87 pin sockets of the relay. The pin numbers are usually labeled on the relay body.

Mechanical Issues:
Inspect the trunk latch mechanism for any signs of damage or obstruction.
Verify that the outside trunk handle is properly connected to the latch.

Hyundai azera trunk unlock Switch (youtube.com)

If necessary, consult a professional mechanic to diagnose and fix any mechanical issues.
Remember to follow safety precautions while troubleshooting, and if you're unsure, it's best to seek professional assistance.

Hi. Thanks for your question. For assistance regarding Dodge avenger trunk you may visit https://www.reliable-store.com and download the entire workshop manual which includes all the information along with the diagrams for better understanding. Good day!

On the internet it said the Hyundai Dealer can make you a cheap key for only the trunk, which is cheaper than the regular key if you provide VIN information and proof that you own the vehicle.

If you have another key, or already ordered and received a replacement key, you might still have problem opening trunk, and another person said "Easy way is to press the unlock button on the driver's door. Then the trunk release will work."

Hi Would you please write back and explain in detail, the malfunction? This model does not come equipped with a key hole but there are there different ways to open the trunk. The trunk not opening will be a result of either a mechanical or electrical failure. Please write back and let me know if you are looking for diagnostic information, wiring schematics, or general knowledge. I need to know more to better answer your question. FYI, if the key FOB and "In Cab" switch is not working. There is an emergency release level that hangs inside the trunk. That handle can be accessed by folding down the rear center seat section.

Here's what I found:

The top has to be all the way down or all the way up and locked or else the trunk won't open.

If there truly was a malfunction there is a key hole for the trunk between the rear seat and the driver side sail panel.

As in your button is failing? open back seats and pull emergency internal release, or use key

Does the key you have open the driver door? Do you have a keyless entry key fob, does it work? you also might try removing the glove box and disconnecting the wires from the trunk button and touching them together with a paper clip or other small wire but before you do that look in your owners manual a determine which fuse is for the trunk release and check the fuse then the last would be to have GM dealer check to see if the key you have is the proper key fror your car and if it may be worn out

this is only a suggestion but some cars have a safety feature wich to keeps people from snooping around your car that has access to your keys. make sure by reading your owners manual that there is not a button like in your glove box or center console box you may have mistakenly hit. I do not know about mercedes but for instance toyota provides you with what is called a vallet key wich is a third key wich will only allow you to open the door and you start the car not allowing glove box or trunk entry like a said this is only a suggestion it very well could be a broken cable or an electrical malfunction. good luck

Trunk can be lock separate from the doors valet try unlocking the trunk with the key lock it with the door.Read the owner manual it will tell you about valet parking.

you should have trunk key all cars trunk can be open remote by the inside. if any fails you always have a trunk key. check your ignition key .i seen ignition keys do both. it cranks car and open doors and trunk.