1. The remote control battery is not making good contact with the terminals. Make sure that the battery is properly seated in the remote control and that the terminals are clean and free of corrosion.
2. The remote control is damaged. Inspect the remote control for any signs of damage, such as cracks or breaks. If the remote control is damaged, it may need to be replaced.
3. The car's door lock actuators are not working properly. The door lock actuators are responsible for locking and unlocking the doors. If the actuators are not working properly, the doors will not lock or unlock when you press the button on the remote control.
4. The car's security system is not functioning properly. The security system may be preventing the doors from locking or unlocking. Try disabling the security system and see if that resolves the issue.
Here are some additional tips that may help you resolve the issue:
* Try reprogramming the remote control. The instructions for reprogramming the remote control can be found in your car's owner's manual.
* Disconnect the car's battery and wait a few minutes before connecting it again. This may reset the car's security system.
* Take your car to a Toyota dealer or qualified mechanic if you are unable to resolve the issue yourself.
