What does D+ and D- mean in an automatic transmission?

[Amara]

Automatic transmission D+ and D- represent the manual mode of the automatic transmission, indicating that the vehicle is equipped with a tiptronic transmission, which has both automatic gear shifting functions and simulated manual gear shifting functions. Here is more information about tiptronic transmissions: 1. Traditional automatic transmissions offer superior operability and driving comfort but lack the free driving experience of manual transmission vehicles. Tiptronic transmissions were developed to address this situation, combining the advantages of both automatic and manual transmissions. 2. The D+ and D- in automatic transmissions not only have automatic gear shifting functions but also manual gear shifting functions, breaking free from the limitations of traditional automatic transmissions. This allows drivers to enjoy the freedom of manual gear shifting while also experiencing the driving comfort of an automatic transmission.