Should you shift gears first or release the handbrake first when starting an automatic transmission car?

[Millie]

When starting an automatic transmission car, the correct sequence is to shift gears first and then release the handbrake. Below is a detailed introduction about automatic transmission cars: 1. Safe method: Press the foot brake, shift to D gear, release the handbrake, then release the foot brake, and finally press the accelerator to start. Automatic transmission models equipped with electronic handbrakes will automatically release the handbrake when the doors are closed, the engine is idling, the seatbelt is fastened, and the accelerator is pressed. For manual transmission models with electronic handbrakes, the system will also detect the coordination between the accelerator and clutch, automatically releasing the electronic handbrake when starting. Vehicles with ESP feature an "OUTH" button, which is the automatic parking function provided by ESP. The ESP control system detects the torque on the body and wheels to automatically determine whether braking is needed to prevent rolling. The braking force of the automatic parking function is moderate. When the duration of automatic parking exceeds a certain limit, the system will replace automatic parking with the electronic handbrake, using rear-wheel braking instead of four-wheel braking. The braking mechanism of the brake pedal is different from that of the handbrake. The brake pedal uses hydraulic control, with braking force distributed across all four wheels, typically with greater force on the front wheels than the rear. During driving, the distribution of braking force is controlled by the ESP and ABS systems, ensuring not only braking effectiveness but also vehicle stability. 2. The handbrake is an auxiliary braking system for parking: (1) Traditional handbrake: The traditional handbrake is a mechanical handbrake, located below the driver's right elbow for easy use. Its purpose is to stabilize the vehicle after stopping, preventing accidents caused by rolling on slopes or during parking. It is controlled by a steel cable, requiring an operating force of about 20 kilograms. For some women with less strength, pulling the handbrake fully can be challenging, which is why some cars are equipped with electronic handbrakes or foot-operated parking brakes. (2) Electronic handbrake: The electronic handbrake uses electronic control to achieve parking braking. Its working principle is the same as that of the mechanical handbrake, both relying on the friction between the brake disc and brake pads to achieve parking braking. The control method has changed from the mechanical handbrake lever to an electronic button. Electronic handbrakes come in cable-type and caliper-type. The cable-type electronic handbrake is not much different from the traditional cable handbrake, both being drum brake types, except that the manual cable is replaced by an electric form.

[Alfie]

For starting an automatic transmission car, as a frequent driver, I believe the sequence is crucial. I always press the brake pedal first to ensure the vehicle is completely stationary, then shift the gear to D, and finally release the handbrake slowly. This helps avoid the risk of rolling on slopes or unintended movement. I've seen novice friends cause minor accidents by reversing the sequence, such as releasing the handbrake before shifting into gear, leading to slight backward movement when starting—nothing serious but startling. Cars with electronic handbrakes may release automatically, but for manual operations, sticking to this standard procedure is recommended. Once it becomes a habit, starting becomes smooth and safe, especially in crowded parking lots or on steep slopes. Remember, keeping the brake pressed is key—no matter how you adjust the gear or handbrake, maintaining control reduces risks. In daily driving, this small detail affects the overall experience.