Hello... For some issue, I disconnected the battery in the trunk lid. However, it locked when I shut it down... and the trunk lid locker seems to be rusted... could anyone tell me how can I open it under this condition?

Thank you

 

There should be a key lock hidden in the underside of the trunk lid near the license plate light. It would be behind a rubber plug. You can use your key to unlock the trunk.

Unlocking the trunk lid with the master key
The master key should only be used to unlock the trunk lid in emergencies (if the remote control is not working or the car is without power). Open the trunk lid as follows:
Insert the master key into the upper or lower part of the plug covering the lock.
Twist upward or downward to remove the plug.
Unlock the trunk lid. NOTE: If the trunk is opened with the master key, the alarm will sound. To turn off the alarm, unlock the driver's door with the master key.

 

Hello, Thank you for your advice... I tried this but seems like the hole was rusted so it didn't work... Is there any other way to deal with it?

Thank you

 

if you can open the hood, apply jumper cables to the + and neg posts in the engine cabin. Then use remote to open the trunk.