Damaged key or lock
The main reason for the failure of your car is damaged. A damaged car may not necessarily look broken into parts or distorted, which makes it hard for you to notice damage to your car. In most cases, you may not be in a position to physically see damage on your car keys. Key or lock damage, therefore, requires key replacement. Find more information here.
Aftermarket or copied car keys
Aftermarket keys are normally unprogrammed. You can experience a problem in the event that you forget to reprogram your aftermarket car key. You may have to replace your car key if you experience the problem of unprogrammed aftermarket keys. See here for information about Advantages of duplicate car keys.
Worn out key fob
Modern car owners mainly experience this problem. When batteries are worn, the key fob is likely to experience problems. In the event that your car is not in a position to respond to the fob commands, there are high chances that your batteries are dead. Wearing out of key fob and batteries calls for car key replacement.
A faulty ignition cylinders
Your car's external door, as well as the ignition, is directly associated with the entire car. In case your key fails when you insert it into the ignition, it is advisable that you seek out a car keys replacement.