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Should You Engage the Handbrake or Shift Gears First When Starting an Automatic Transmission Car?

1 Answers

KalebDella

07/29/25 6:37pm

The safest way to start an automatic transmission car is: press the foot brake, shift to D gear, release the handbrake before releasing the foot brake, and finally press the accelerator to start. For some automatic transmission models equipped with an electronic handbrake, the handbrake will automatically disengage when the doors are closed, seat belts are fastened, and the accelerator is lightly pressed while the engine is idling. Below are some related details: 1. Regardless of the type of automatic transmission, when in P gear, the pawl installed on the transmission housing engages with the internal gears, locking the entire transmission's drive components, thereby securing the entire drivetrain of the car to prevent rolling if the handbrake is forgotten. 2. The handbrake works by activating the braking system, which locks the wheels to secure the vehicle. If you shift to P gear first and then engage the handbrake, the task of securing the vehicle is undertaken by the transmission's ratchet and gear engagement. Conversely, if you engage the handbrake first and then shift to P gear, the entire braking task is handled by the braking system, with P gear only serving as an auxiliary brake, leaving all internal moving parts in a completely relaxed state.

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