Car park barriers work by putting holes in your tires.
Stairs, Parking lots, Doors, crowds,
parking pawl
Are your lights automatic or do you have to turn them on??? If there automatic then you need to turn the knob to the left of the steering wheel and turn it to "Off" and its the same if there not automatic too.
The parking brake is on or the transmission (automatic) or the clutch (standard) has problems.
Obviously, if not put into P (PARK), then yes.
ignition will be turned off and keys left in ignition, transmission placed in park (automatic) or reverse (manual), parking brake set, parking lights/emergency flashers on
If all other lights work then make sure that the parking light bulbs are good. Check for a parking light fuse and relay, to insure that the work properly.
There is a part inside an automatic trans called a parking "pawl". When shifting to park, linkage attached to your gear selector, also attached to your trans, with engage the parking pawl. The parking pawl will only alow the front wheels (on a fwd vehicle) to roll inopposite directions from each other, thus preventing it from moving in either direction.
The short answer is with parking sensors and electric power steering.The only thing you do is control the speed with the brake. There is a lot more to the system,But this is the basics.
the legal requirements for them is slopes, automatic doors, disabled parking.
you telll me..... im asking u...