What does D123 in automatic transmission mean?

1 Answers
IsabelMarie
07/29/25 6:24pm
D is the normal forward gear of the car, and 123 refers to the low gear mode of the transmission. The following is a detailed introduction to the automatic transmission D123: 1. D1 gear: D1 gear is the heavy-duty gear. The transmission stays in first gear. 2. D2 gear: The vehicle starts with D2 gear. The transmission stays in second gear, used for starting on slippery roads or as a limiting gear when moving slowly, which can avoid gear shifting between 1st and 2nd gears and between 2nd and 3rd gears. 3. D3 gear: D3 gear is the overtaking gear. It can be used as a limiting gear when traffic is not smooth, which can avoid gear shifting between 3rd and 4th gears.
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