The dog is man's best friend but if you have a dog that barks all the time then this can be a problem for you.
  It is important to know that there are things you can do to control when and how your dog barks.
All animals do things for reasons, and when your dog is barking and chasing cars and in most cases, it is to protect you.
  You have to understand that the dog thinks that you are being threatened by a passing car so they may barking and chase it.
  You need to teach your animal win is a proper time to bark and when it is okay for them to feel safe.
There are so many cases, where our pets act a certain way and we think something may be wrong with them.
  In reality, it is just that they may feel threatened, and they want to protect us.
  If this is the case for your dog than what you need to do is to create a word that they understand as being okay to bark for instance, if you use the word "speak" so that when you tell your dog this word they know it is okay for them to bark.
  They will eventually catch on in this will make your life much easier so they are not barking at everything they see.
Remember that training your dog not to bark all the time is not as hard as you might think.
  The best method to do this is to teach your dog a word that they can identify with barking being okay for them to do.
Remember and will take a little time for them to catch on, but when they do it will make you and your pets life much easier.