Is this the correct procedure when parking on gradient?

That's my method

 

I do exactly the same, but reverse these two.

 

i reverse 3 an 4 in the parking sequence soi know the e brake is holding before i press park. and agree with sergio. but either way is fine.

 

Pretty much as long as the car is held by it's brakes, whatever method is fine.

 

I don't see anything about turning the wheel into the curb.

 

If you are trying to prevent stress on the transmission pawl, I would say that you should put the tranny in N, then set the foot brake until the car holds with the brake alone, then place in P to engage the pawl. The car may still creep and you might still get the thump when you switch out of P the next time you move the car.

 

yep, and or the tire to the curb for additional stress relief!

 

Well where I grew up we called them "gradients" -hills.

Really big gradients were mountains....

 

When parking down hill, turn to the right until your tires touch the curb. When going up hill, turn to the left and back up a bit until your tires touch the curb. With no curb, always turn to the right. This is for the US, drivers on the other side will probably need to reverse this.

With a curb the tire and curb should hold your car. After putting the tire touching the curb then set the break and transmission to park.

If there is no curb or the curb is very small, then use the break and transmission to hold the car. Point the wheels such that if it rolls it will not roll in to traffic (rather it will roll off the side of the road).

 

My normal sequence in the Prius is.

• Foot on brake
• Switch car off and apply parking brake (either order)
• Foot off brake

Switching the Prius off automatically puts it in Park (paul engaged) and I only press P if I want to stay stopped with the engine on.

I normally don't use N as the Prius never physically disengages its gears. It simulates N when the engine is running by running an MG backwards just fast enough that there is no power to, or drag on, the wheels.

I rarely deliberately run the front wheels up against the curb as I am rarely parked on a steep grade with a curb of the right height.
(Most curbs are either too low to do much, or high enough to risk damage to the body due to the low ground clearance)
If I do park on a hill that is steep enough that runaway looks like it would be a disaster, I am likely to park with the front wheels pointing in a relatively safe direction.

 

In some places you can get tickets for not parking on hills correctly. On steep hills "relatively safe" is not going to cut it. Your car goes out in traffic and kills someone … that's Negligent Homicide. 6 Months to 10 Years in the slammer.

 

All that matters is that your foot is on the brake and you engage the parking brake before going to P. Ensure your brakes are applied before turning off P and taking off the parking brake. There will be no stress to worry about when you power on/off the Prius as the brakes are holding the tension, not the transaxle.