Why does an automatic car still roll backward when in D gear?

1 Answers
MacJocelyn
07/29/25 12:51pm
Rolling backward when starting on a slope is unavoidable and a normal phenomenon. The procedure for starting an automatic car on a slope is to press the foot brake, shift into drive (D), release the handbrake, lift the right foot off the brake and press the accelerator. During the transition from lifting the brake to pressing the accelerator, there is a brief moment, and some drivers may be slower in their actions. Therefore, if the accelerator is pressed too slowly, the car will roll backward. Here is some related information about automatic transmissions: 1. Introduction: An automatic transmission, as the name suggests, does not require the driver to manually shift gears. The vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. Generally, an automatic transmission car has six gear positions, from top to bottom: P (Park), R (Reverse), N (Neutral), D (Drive), S (Sport), and L (Low). 2. Automatic Principle: The engine's power is transmitted through the transmission, which is also a key factor affecting fuel consumption. Generally, an automatic transmission consumes over 10% more fuel than a manual transmission. Whether manual or automatic, the more gears a transmission has, the more fuel-efficient it is.
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