What to Do When the Corolla Key Won't Turn?

[MacAlaina]

Key malfunction is usually caused by a nearly depleted battery. Pry open the remote key along the notch and replace it with a new battery. If the central door lock control system cannot be operated with the remote or the operating range is reduced, it may be due to the following reasons: 1. The remote may be too far from the vehicle; the remote battery may be dead or low on power; there may be other vehicles or obstacles blocking the signal. 2. Frequent repeated operation of the remote outside its range may require resetting the remote synchronization. 3. If the central door lock control system is overloaded due to repeated operations in a short period, the power may be temporarily cut off; it may also be affected by external environmental radio signal interference.