Does coasting harm an automatic transmission car?

[DiJudah]

As long as you step on the brake in time after coasting, the damage to the car will not be significant; additionally, if you don't brake in time, one or two instances of coasting won't have much impact. Below is a detailed introduction to the specific gear positions of the car: 1. P (Park) gear: When the gearshift lever is in the P position, the transmission is in neutral internally, but the output shaft is mechanically locked. At this time, the car will stop in place even without stepping on the brake, generally used for long-term parking. When engaging the P gear, the car must be completely stationary. Do not engage the P gear when the car is not fully stopped, and always apply the handbrake. When parking on a slope, you should first apply the handbrake and then engage the P gear. 2. R (Reverse) gear: When the gearshift lever is in the R position, the rotation direction of the transmission's output shaft is opposite to that of the engine, allowing the car to move backward. When engaging the R gear, the car must be completely stationary. Do not engage the R gear when the car is not fully stopped. 3. N (Neutral) gear: When the gearshift lever is in the N position, the gears inside the transmission are in a freewheeling state, and the clutch is not engaged, resulting in the minimum load on the transmission. The N gear is generally used for short-term parking, such as waiting at a red light, and the transmission should also be in the N gear when the car is being towed. 4. D (Drive) gear: When the gearshift lever is in the D position, the gears inside the transmission automatically switch between the lowest and highest gears based on factors such as vehicle speed and throttle opening, following the preset shifting pattern. In most cases, the D gear can be used for driving.