![]() Change Broken Internal ContactsĪ key fob casing is mostly plastic, and it gets exposed to lots of abuse. If a dead battery is the source of trouble, the remote key should be working after the replacement. Take notes of the numbers on the battery and replace it with a similar one. Open the battery cover and pry out the battery with something like a small screwdriver or a key. If the smart fob does not have any physical damage, the easiest solution to fix this issue is to change the battery. Here are the things that you can do to resolve the problem. If the backup remote can lock and unlock the door, you will know for sure that there’s something wrong with the main remote. ![]() Troubleshooting of Remote Key Won’t Unlock Car Doorīefore starting to diagnose the causes, you can use a backup key fob (if you have one) to see whether the problem is with the remote or the car door. ![]() In most cases, it’s the battery that has gone bad, but there could be a couple of other problems too. A dead key fob means you’re locked out of the car, which is the last thing anyone would want when in a hurry.Ī smart fob can stop working for several reasons and diagnosing them is quite simple. A key fob is a nice convenience, but it’s frustrating when the remote key won’t unlock car door.
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