you definitely has to put the emergency break on ill tell you what happens when you put it in park,.....you will go to the front and have a car crash.
I take it out of park and put it in gear first and then release the emergency brake
Check your brake fluid level, you're probably low.
You want to park the car with the front wheels turned toward the curb so if the emergency brake were to fail the car would simply roll into the curb and stop. Put the car in first gear if it is a manual tranny and set emergency brake.
The hold button as explained in the manual is a 'hill hold' button if you are starting and stopping (off road) on a hill. It will presumably prevent the vehicle from drifting backward as your foot moves between the gas and brake pedals.
That is normal as there is a parking "gear" and that has to hold the vehicle in place when on a hill. There is a lot of pressure on that gear - you are releasing the pressure therefore the large "cluck" when on a hill. Best way to not cause this is put the emergency brake on when parking - release the brake to set the e-brake and then place the van in park to not put the pressure on the transmission.
Friction.
Put your foot on the brake. Most/all newer cars have an interlock that keeps you from shifting from park to drive without your foot on the brake. Sometimes if you park the car on a hill, it will be difficult to move the shifter out of park. That's why some people use the emergency brake before putting the car into park when parking on a hill or incline (like a driveway)
One thing you might want to check is the brake fluid. Your brake fluid reservoir has a sensor in it that lets you know when it is getting empty. By driving up hill it may be sensing that it is low so just check the level of the brake fluid. Be sure you do not overfill and follow directions in your owners manual for checking and filling brake fluid.
Use the brake or the emergency brake. You could also give just the right amount of gas to make the car stay put but that's a lot of work. Or you could put a log or something sturdy behind the wheels Left foot on brake pedal, right foot on accelerator pedal
Brake fade is the reduction in stopping power that can occur after repeated application of the brakes, especially in high load or high speed conditions. Brake fade is caused by a buildup of heat in the braking surfaces and the subsequent changes and reactions in the brake system components and can be experienced with both drum brakes and disk brakes. Brake fade occurs most often during high performance driving or when going down a long, steep hill.
use the emergince brake
Yes, most definitely it will roll down the hill. When parking on a hill always set the parking brake. The park gear in an A/T can break, so do not take a chance. In drive the car will roll if the brake is not set.