If the other buttons work the problem is a bad unlock button.
Car key unlock not working.
In other words it will not allow you to use the fob as a keyless entry remote.
Here are some common reasons for this issue.
The panic button and or trunk unlock features don t work.
You will need to set these services up ahead of time.
Try the lock button trunk release button or panic button.
Your problem is likely that the fob can start the car but will not allow you to unlock the vehicle s doors or trunk.
If your key is working but the button suddenly stops locking and unlocking the door here is a quick fix.
This can help loosen any stuck pins or springs.
When this happens use a small tack hammer to gently tap the key ignition.
If you have any car related problems or questions yo.
Car key remote fobs are a nice convenience to have but they all stop working eventually.
The key fob itself could be defective or have a bad unlock button.
If you can unlock the car manually the locks are working mechanically.
There could still be a problem with the electrical system which you can check by toggling the automatic lock and unlock buttons in your vehicles interior.
If you notice that your key remote does not unlock your car lock your car or start the engine for those with the automatic start button as early as it should it s probably time to replace the battery.
The pins and springs inside the key cylinder conform to the unique shape of your key so that only your key will work to turn on your car.
There can be problems turning the key due to issues with the pins or springs.
If you drive a fairly modern car there is less of chance that you will have to deal with this which is mostly attributed to the presence of key fobs and keyless entry remotes.
Press the large button on the remote primary plip the lock button towards the front of the vehicle where the receiver is located then press the small button on the remote unlock key turn the ignition off wait for 5 seconds and try locking unlocking your car.
Most car brands offer a remote door unlock service for emergencies such as a broken smart fob and locking the keys inside the car.
Even if it s just a dead battery you can pretty much guarantee that your car doors will fail to unlock with the remote at one time or another.
If your car key is not working when you attempt to unlock your car there is a possibility that the lock itself is damaged.