What is the D3 mode in Civic?

[AthenaDella]

The so-called D3 in Civic refers to a gear position that limits the transmission to the 3rd gear and prevents it from shifting up further. It is generally used in traffic jam conditions to avoid frequent gear shifting. Automatic transmission cars have gear positions such as R, P, D, N, L, and S. The specific usage methods are as follows: 1. R gear: Used when reversing, also called reverse gear. It should be noted that the car must come to a complete stop before shifting to R gear. 2. P gear: Used when parking, meaning the engine stops working. Therefore, many people call this gear the parking gear. 3. D gear: Mainly used for driving the car forward, called the drive gear, which is the basic gear position for automatic transmission cars. 4. N gear: Similar to the neutral gear in manual transmissions, with no difference in principle. It can be used when encountering a red light ahead while driving. 5. L gear: A low gear position, typically used when going uphill or overtaking. 6. S gear: Sport mode, allowing free switching among all gear positions.