I wish I had better news for you, but the perimeter security system has 6 microswitches -- one in the hood latch, one in the rear hatch latch, and one in each door latch. The switches are integrated inside the latch assemblies and are not replaceable as individual parts. If one goes south, the only way to replace it is to replace the entire latch causing the problem. You can try to remove and disassemble it if you know which one is giving you grief, but I have never heard of anyone do it.

What I would recommend you try (but can't promise will do the trick) is first using something like to thoroughly clean and degrease the internals of the latches. You can then lubricate them with something like . Under NO circumstances use plain WD-40 on any lock assemblies or latches. That is NOT a general purpose lubricant, it is a water displacement (hence the "WD" in the name) anti-corrosion formula which dries to a film, attracts dust, forms a nasty gunk and will totally screw up the lock and latch.

Good luck. It will be damn near impossible to troubleshoot and find the culprit (unless you have the JLR software, a mongoose cable, a power supply, and can set it up to monitor and catch it when it goes south), so get ready do all four doors and the rear hatch. You already bypassed the hood (so did I), so no need to do that one.

 

Something else to try: Reset the auto-up for all the windows.

https://www.lrukforums.com/threads/f.../#post-1541668