Transmission lockup is caused by water in the transmission or power supply problem. Here is a detailed introduction and solution:

Sensor detection problem:

The sensor in the transmission is used to transfer information, if the sensor is not working well, the transmission will automatically lock up. In this case, you need to go to a professional repair shop for maintenance.

Power supply problem:

The start-up system and operation system of the transmission are controlled by the transmission computer. If the computer is not powered, it will cause transmission lockup. In this case, you should timely charge the computer.

In summary, transmission lockup is caused by either water in the transmission or power supply problem. To solve the problem, you need to go to a professional repair shop for检修 or charge the computer.