Does coasting in D gear on an automatic transmission damage the car when climbing a slope?

[LeEmery]

Coasting in D gear on an automatic transmission does not damage the car. D gear is the forward gear and can be used for uphill driving. When climbing a slope in D gear, the automatic transmission uses the throttle control—pressing the accelerator deeper. If the power is insufficient, it will automatically force a downshift, and once the speed increases, it will automatically upshift. The method for parking an automatic transmission car on a slope is: 1. After reversing the vehicle into position on the right, shift to N gear and engage the handbrake to stop steadily; 2. After the vehicle is completely stopped, turn off the engine and shift to P gear. The method for starting an automatic transmission car on a slope is: 1. After starting the vehicle, press the brake and release the handbrake; 2. Shift from P gear to D gear and press the accelerator.

[NolanAnn]

As an ordinary person who frequently drives automatic transmission cars, I often encounter steep slopes on my way to and from work. When climbing a slope in D gear, the car slipping, especially when starting and the car sliding backward, can indeed be nerve-wracking, but it doesn't necessarily directly damage the car. Occasional occurrences are fine, as vehicles are designed with mechanisms to absorb shocks. However, if it happens frequently, it may accelerate the wear of the automatic transmission clutch plates. I've experienced minor slips a few times, and the car was fine, but for safety, I've learned to use the hill start assist function or firmly press the brake before starting. Nowadays, many new cars come with electronic stability systems to help reduce such issues. In the long run, developing good driving habits is crucial to avoid overloading the engine by stomping on the accelerator on slopes. Regularly checking transmission fluid and brakes can prevent potential risks and make your beloved car more durable.

[VonBrody]

Having driven for several years, as a young person, I prefer exploring mountain roads. Slight rolling back in Drive (D) mode while climbing isn't a big deal, but proper operation matters. Occasional rolling won't immediately damage the engine or transmission - protective mechanisms buffer the impact. However, frequent rolling causes clutch components to heat up from friction, accelerating wear and reducing lifespan. I've tried shifting to manual low gear on steep slopes for more powerful starts that prevent sliding. For daily driving, I recommend using hill start assist - simpler and safer. Cultivate smooth starting habits; avoid sudden throttle inputs to keep your car healthier. Long-term neglect may increase maintenance costs, but don't stress too much - modern technology helps tremendously.

[Mariana]

Having driven multiple automatic transmission cars, my experience has taught me that rolling back in D gear on slopes is common, especially with older models. When rolling back, the engine and transmission bear a slightly heavier load, but it's not severe enough to cause serious damage as they are designed with buffers. The key is to avoid repeated occurrences to prevent clutch plate wear. Using intermittent braking to stabilize the car before starting on a slope is safer. Regular transmission maintenance can help minimize such issues.