What is the reason for the absence of manual mode in a semi-automatic transmission?

[Albert]

Semi-automatic transmission not having manual mode may be caused by a malfunction in the data program module information. Gear lever manual mode: This type of manual mode, operated through the transmission gear lever, is currently the most common. The specific method of use is to switch the transmission gear lever to M or S mode after the vehicle is started/while driving, and then shift gears by pushing the gear lever forward or backward. As long as the vehicle is in the started state, the manual mode can be engaged for gear shifting using the above method. If you need to switch back to D mode (automatic mode) while driving, simply move the gear lever from the manual mode position back to D mode. Steering wheel paddle shifters: Steering wheel paddle shifters can be understood as an extension of the manual mode. They are merely an "additional control method" added to vehicles that already have a manual mode. As a quick-shifting mechanism, paddle shifters are located behind the steering wheel, allowing the driver to shift gears without taking their hands off the wheel, making the operation more convenient and efficient.