How Deep Should the Brake Be Pressed When Starting an Automatic Transmission Car?
3 Answers
When starting an automatic transmission car, gently press the brake pedal. The starting sequence for an automatic transmission car is: 1. Get in the car, insert the key, and turn it to the second position (power-on mode) to wait for the system self-check to complete; 2. Shift the gear lever from P (Park) to N (Neutral); 3. Release the brake and start the car's engine; 4. Press the brake pedal with your foot, shift the gear lever from N to D (Drive), release the brake, and press the accelerator to start moving. Driving tips for automatic transmission cars include: 1. Accelerate gently when starting, always start in P or N gear, and avoid coasting in neutral; 2. Shift back to N gear when waiting at traffic lights or during brief stops, and use P gear when parking; 3. Do not shift into P gear while driving; 4. Ensure the vehicle is completely stopped before shifting into R (Reverse) gear for reversing.
I just started learning to drive and always worry about not pressing the brake pedal deep enough when starting the car. After trying a few times, I found that pressing until the car stops moving is sufficient, usually around the middle of the pedal or slightly deeper. If the pedal is pressed too lightly, the car might move or fail to start, especially on slopes where it can roll back. Once, on a steep slope in my neighborhood, I almost scratched someone else's car—it really scared me. Now, I've developed the habit of placing my foot firmly before starting, not rushing to ignite, and waiting until the car is completely still before operating. New cars have sensors that require the brake to be pressed sufficiently, or the engine won't respond. I recommend beginners practice in open areas to get familiar with their car's brake resistance—no need to press too hard or too lightly, just ensure safety first.
Having driven automatic transmission cars for over a decade, I usually just press the brake firmly until the vehicle comes to a complete stop when starting up. The depth varies from person to person—about halfway to two-thirds of toe pressure is sufficient, just go by feel. Pressing too deep wastes effort and may accelerate brake wear; too shallow and the car won't start or could cause issues on slopes. With experience, I can tell if the pressure is enough by listening to the engine sound, plus modern cars display readiness prompts. On flat roads, a light press is fine, but in rain or snow, press deeper to prevent slipping. Overall, don't overthink it—it becomes second nature. The key is ensuring the car is fully stationary before shifting gears or starting.
