What does D1 D2 D3 D4 mean in a car?

1 Answers
RubyLynn
07/29/25 2:23pm
Automatic transmission's D1, D2, D3 are equivalent to three gear positions. Below are specific introductions to car gear positions: 1. P gear is the parking gear: When the gear shift lever is in the P position, the transmission is in neutral inside, but the output shaft is mechanically locked. At this time, the car will stop in place even without stepping on the brake. It is generally used when the car is parked for a long time. 2. R gear is the reverse gear: When the control lever is in the R position, the rotation direction of the transmission output shaft is opposite to that of the engine, allowing the car to reverse. When shifting into R gear, the car must be completely stationary. Do not shift into R gear when the car is not completely stopped. 3. N gear is the neutral gear: When the control lever is in the N position, the gears inside the transmission are idling, and the clutch is not engaged. The load on the transmission is minimal at this time. N gear is generally used for short-term parking, such as waiting for a red light, and the transmission should also be placed in N gear when the car is being towed.
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