Rear hatch and barn doors will not lock or alarm with remote, key or lock button.

Found this wiring diagram for lift gate, if that is what we're talking about? Not only check the fuses, check fuse circuit for voltage. Use a testlite.

Question edited for clarity.

The remote start is tied to the Lift Hatch. Your vehicle was likely not locked, so when you double clicked the lift hatch, it did what it is supposed to do and opened the hatch. If that is not the case, take it to a remote / alarm installer to check the programming.

How To Remote Start A Cadillac Escalade? - VEHQ

https://vehq.com > how-to-remote-start-cadillac-escalade
Jan 5, 2022 - 1. Press the lock button on the key fob to secure the vehicle. 2. Press the liftgate button on the key fob twice. Take note that not ...

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the switch is bad on the rear hatch cylinder

Use your key to turn the rear hatch key cylinder before going into your jeep. That will turn off the factory security system.

Check the unlock mechanism for the hatch. These are controlled by an electrical motor pulling a cable. If the cable came loose you might or might not hear the click click that it makes. I would also check the fuses and relays related to the system. Usually if you can get the interior panel off all the innards are exposed. I would suggest pulling that panel off, then triggering the keyless remote and see if anything moves, that might pinpoint where it has gone bad.

The lock is stuck in the "locked" position.
When you close the hatch, it is jamming the latch hook into the wrong area.

Manually open the hatch. Unlock the hatch (even tho the hatch is already open). there are two bolts holding the metal "loop", the loop has moved. Adjust the metal loop and close the hatch / lock it, etc.

A VW dealership can change the programming for you with a VAG-COM device.

if alarm is activated, it could be shutting off the starter, hence no starting....you may have to have a locksmith or electronics place disable the alarm so you can at least drive the thing

the unlock or popper for the door needs to be replaced. the door should work with a key.

1) Unlock all doors from driver's door while it is open. The driver's door is the only door to remain open during this process! 2) Turn the key from OFF to RUN 8 times within 10 seconds, with the eighth turn ending in RUN. All the doors will lock and unlock if program is successful. 3) Turn key OFF and remove key from ignition. Within 20 seconds, press any button on the remote. (Press sliding door or rear hatch and it will open!) 4) If door locks do not respond, wait several seconds and press button again. If doors still fail to respond, try repeating steps (1-3).