Neighbor's 2004 Jaguar trunk got jammed/locked from hitting lock and open buttons simultaneously on remote. Remote and key does not work to open.

Under the hood is a fuse box with a stud in the fuse holder put pos on that lug and ground to engine. Is your battery dead also?

the wiring around the trunk/boot hinge may be broken/opencircuit. the security system thnks the trunk/boot is open use the manual key to get in to the trunk and repair the wiring

Check for alarm system settings.,maybe its needs to be re -set. lubricate lock mechanism to prevent jams.
sammyc47

sounds like you have a faulty driver door module...the module controls the fob comands...ytou should also see a display saying config "d" etc...let me know what is showing..

The key you are using might be a valet key. Check to see if you can lock your glove box. If you can lock and unlock your glove box with the key then there is something wrong with your trunk lock. If the key does not work in the glove box, then you will need to order a master key from a toyota dealer.

the keys needs to be initialised. put key in door lock or ignition barrel and press/hold the remote open button until led flashes on dash, release button and rremove key from lock, remote should now work

hi. this happened to me years ago. under the rear numberplate when removed there is a lever or
latch to open boot. good luck
michelle

It is entirely possible that the unlock button on the remote is worn such that it is not making contact. I've seen this happen many times, as the unlock button is pressed so much more than lock. You might try to reprogram the remote first before you look into getting a new remote. The procedure goes like this. Close and lock all doors Key in and out of the ignition 6 times, hazard lights should flash twice Turn key into accessory or on position Unlock and lock doors with drivers switch Press lock or unlock on remote Hazards should flash again to verify recognition turn key off  manually unlock door and then open and shut it.  you should then be able to test remote. 
The key to the procedure is doing step two quickly Hope this helps, if not you may need another remote or see dealer.

you'll need to insert your key into the trunk lock. prior to doing this you'll need to use the automatic lock on the driver side of the vehicle, hit the unluck button twice. Torn the key in the trunk to the left, you may have to slightly press the trunk button in while doing this and give it a lttle wiggle after the key has been turneed to the left push the button all the way in, if this does not work repeat the process but reverse to the right instead of the left.

This manually disables the remote lock for your trunk.

Look in the glove box and see if there is not a valet switch. It is usually on the top left. This locks out the buttons.