My mitsubishi lancer key wont open or close my car remotely although the battery is ok

SOURCE: BMW remote control problem

I have a e60 525i that I just brought and it has the same problem, the owners manual suggests driving with the key in the ignition for a long time as the batteries are rechargable and may have gone flat, i have tried this and it doesnt seem to work

i also read something about getting water in the aerial about the rear window and that wrecks the receiever. My car isn;t under warranty so not looking forwarding to taking it to bmw

SOURCE: fuel pump in a mitsubishi lancer 91.

The fuel pump is located in the fuel tank and you can reach it by removing the back seat.

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SOURCE: Ford F150 remote key does not work after car battery

Should not have happened,
For the Factory RKE ( Remote Keyless Entry ) have you tried reprogramming the key fobs to your truck. The procedure is in the owners manual ( need all of them at programming time ).
This is stored in NVR, and should not need to be done, but worth a try.

If this is an aftermarket Remote start / alarm, check the owners manual for t on battery replacement. Have seen some off brand with strange battery ( truck's battery that is ) replacement steps.

SOURCE: can not lock car by key remote . toyota rav 4 53 plate

If your car has an alarm with a separate remote, it is a separate system and it is probably self-arming. When you lock the doors with the key central lock, the alarm gets armed by the RAV4 being OFF and the door locking action. When you unlock the doors with the key, the alarm is still armed because the key is not comunicating with the alarm just the cars factory keyless system.

SOURCE: my car bmw 320d wont lock with remote does open

ive just discovered this same problem with my bmw 320d this morning! any theories why it wouldnt lock? would be very helpful