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Should I go to the P number first or pull the parking brake before stopping with the automatic vehicle?

You may have heard about parking gear before you put a parking brake before you park the parking brake (parking) with automatic cars. Indeed, the parking operation I just mentioned is not good for automatic transmissions in certain cases. So why is it not good, not good in any case and what should you do?

First of all, we need to quickly understand the structure as well as the number P and the parking brake to keep the vehicle stationary. On the output shaft of the automatic gearbox has a fixed disc with multiple roots. When the driver sets the P, the parking latch (parking pawl, folk also called toad gears) will be installed on the root, thereby locking the shaft out of the gearbox and keep the wheel from turning. And the hand brake is basically a brake mechanism at the wheels and it works in parallel with the foot brake. When the handbrake is installed, the brake assemblies lock the wheels hard. Handbrake can be considered a backup option, keeping the vehicle stationary from drifting when the P number cannot hold the gearbox.

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How to operate the latch in automatic transmission (Image source)

Usually, most of the driver and even my brother usually perform automatic manual parking with the traditional mechanical brake (*) following the following main steps:

  1. Push the foot brake to slow down and stop
  2. About number P
  3. Pull the hand brake, before or after releasing the foot brake

What is not good in this sequence lies in the gap between the pin and the root of the disk when there is a gap. When the driver drops the foot brake, the vehicle will be more or less drifted, causing the parking pedal to slip, friction and impact force with the root. These forces will be larger when the driver releases the foot brake before pulling the hand brake. Especially when the car stops on a sloping slope and a heavy vehicle, the impact and bolts will be stronger.

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Of course, when the manufacturer designs gearboxes, the mechanical details such as the parking pin have been calculated to have full strength to be able to work for a long time with many different situations, both good and bad. But in reality there are still many cases of parking passages in automatic transmission broken due to prolonged abuse.

Therefore, we should practice the habit of automatically parking numbers with P numbers correctly. The steps will be more complicated, in exchange you will avoid falling into a painful situation when the key is broken.

  1. Push the foot brake to slow down and stop
  2. Enter N number
  3. Pull the hand brake
  4. Release the foot brake
  5. Enter the number P

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In short, you can drive an automatic and have a traditional handbrake when parking, so put your handbrake before entering the P. If you feel that these 5 steps I just told are too long, you can leave Through the N platform to be simpler and easier to remember.

Expanding this issue, the asterisk (*) above can be considered a joy for those who are riding with electronic handbrake, and can ignore the worry of breaking the stop in the gearbox and without the complex order. above mentioned. Partly because the brake mechanism of the electronic hand brake is much better than the traditional mechanical brake. Another part is that the automatic electronic brake will automatically release when the driver switches from D to N, R to P, or some high-end cars use the power shift, we can install straight from D through P.

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Wishing you safe driving.



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