The parking brake has been changed to relfect on how it operates in real life. Many are used to just clicking on the parking brake lever and engaging it or disengaging it. The way how it works in real life is if you want to engage the parking brake, you will need to apply full brakes and then engage the parking brake. To disengage it, you will need to apply full brake pressure again to turn it off. This is if you are using rudder pedals. If you are on keyboard or controller, wherever you have you braking assigned to, you will need to push the key or click and hold it until you get full brake pressure to engage or disengage.
"We have made a number of other changes and improvements around the airplane- one of which I want to call out for attention because it is guaranteed to trip up even long-time users of PMDG products:
With this update we have corrected some problems with the brake pedal position module that caused improper behavior when setting/releasing parking brakes and when disengaging the autobrake using brake pressure as is most commonly done in the real world. This is going to trip up a lot of users- so here is what you need to know:
To set the parking brake, you must FIRST apply full brake then set the parking brake latch on the pedestal. The red light will illuminate, and the latch will be locked in place.
To release the parking brake, you must apply full brake pressure.
In the past, simply clicking the parking brake latch would release the parking brakes, but that is not correct behavior and we have now fixed this. The only way to release the parking brake is to get full brake application until the spring latch mechanism releases the parking brake latch and it pops back to it’s stowed position. If you use rudder pedals with toe brakes this will provide a satisfying, proper simulation of the brake release. If you use a keyboard or button for your brakes, be sure to hold it for a few seconds as brake pressure ramps up slowly. A simple tap of the button won’t work- you gotta hold it until full pressure is applied.
On the autobrake release side, to use the brake pedals to release the autobrake after it has engaged, simply apply pressure slowly on the brakes until you exceed the amount of braking being applied by the autobrake. The brake pressure sensors will pick this up and send the trip-off command to the autobrake control module, thus releasing the autobrake for you.
(If you guys see others struggling with the change in brake behavior- please point them here or copy this notice to them? We appreciate it. :-)"