
Generally, you should shift gears first and then release the handbrake last. Below is a detailed introduction to the various gears of an automatic transmission car: 1. Gear Shifting Steps: When starting the car, shifting from P to D passes through R, which causes a reverse impact on the transmission, potentially damaging it over time. The correct method is to turn on the power, press the brake, shift to N, start the engine, and then shift to D. 2. P Gear: This is the parking gear, which uses a mechanical device inside the transmission to lock the rotating parts of the car. It must only be used when the vehicle is completely stopped. Additionally, the gear must be in P when turning off the engine. 3. N Gear: This is the neutral gear, typically used for short stops. In neutral, your right foot can rest off the brake pedal. However, on slopes, you must still press the brake to prevent rolling unless the handbrake or electronic brake is engaged.

Regarding safety, I always emphasize the correct sequence: release the handbrake first before shifting to D gear. On flat ground, if you shift to D gear before releasing the handbrake, the vehicle may move slightly, potentially causing accidental scratches or rear-end collisions. Especially on slopes, if the handbrake isn’t released promptly after shifting to D gear, the car may roll backward due to gravity, increasing the risk. Having driven for over a decade, I’ve witnessed many accidents stemming from such small oversights, so developing this habit makes driving safer and more reliable. When parking, it’s also advisable to check if the handbrake is fully released, as otherwise, it can increase wear on the transmission. In short, protecting yourself and others by paying attention to small details is the most fundamental rule of driving.

When I was learning to drive, the instructor repeatedly taught me to release the handbrake before shifting gears, and I've always remembered that. The first time I started the car alone in the neighborhood, I was flustered and forgot the sequence—I shifted to D before releasing the handbrake, causing the car to lurch forward and nearly hit a road post. Since then, I've forced myself to develop a reflex: after pressing the brake and starting the engine, I immediately release the handbrake to ensure stability before gently shifting to D to start. Over time, this habit has made me a more confident driver and helped avoid minor mishaps. Friends who see my smooth operation say it looks effortless, but it really boils down to one thing: releasing the brake in advance allows for a smoother transition, reducing abruptness.

From a mechanical principle analysis, releasing the handbrake before shifting to D gear is a scientific operation. In automatic transmission vehicles, the D gear activates power transmission in the gearbox, while the handbrake physically locks the wheels. If done in reverse order, releasing the handbrake immediately after engaging D gear causes a power impact on the vehicle body, potentially subjecting the drivetrain to additional stress and accelerating wear. Conversely, the proper sequence allows the vehicle to release the brake without power before starting, reducing mechanical impact. I always pay attention to these details to prolong the vehicle's lifespan. During startup, I also check the handbrake indicator on the dashboard to ensure safe release, enhancing overall reliability.

As a beginner, I've found that starting an automatic transmission car is best done step by step: press the brake to start the car, release the handbrake completely without hesitation, then shift to D gear and slowly release the brake to move off. Releasing the handbrake first is the key step to prevent the car from sliding during gear shifting and avoid minor accidents. When I was first learning, I always reminded myself of this sequence, and now that I'm more experienced, it's become second nature. Don't worry about it being too complicated; with a few more practices, you'll get the hang of it and develop safety awareness. Different cars have different handbrake designs, such as some using button-style electronic handbrakes which are more convenient, but the principles are similar.

In daily commuting, I have developed a habit of releasing the handbrake before shifting to D gear. For instance, when waiting at a traffic light, shifting to D gear before releasing the handbrake can easily cause the car to inch forward and potentially lead to a rear-end collision. On the other hand, releasing the handbrake a step earlier in tight garage spaces allows for more precise control over the starting position and saves time. With over five years of driving experience, adhering to this sequence not only protects the transmission but also enhances driving smoothness. Consistently applying this method in different scenarios, especially in vehicles equipped with hill start assist, provides added peace of mind. Cultivating this practice ensures a smoother vehicle start, reduces unnecessary mechanical issues, and maintains the car in good condition over the long term.


