Why Is The Car Key Failing? Common Causes You Should Know

If you're always careful with your car keys, you might not think of a situation where you'd need to replace them. After all, you keep them safe and avoid misplacement. But, key loss isn't always the main problem – sometimes, keys may not work as expected. For instance, you may unlock the door and start the car engine only to realize the key can't function. It's easy to assume the car is malfunctioning, but the key could also be faulty.

When you face such a situation, contact a car locksmith service. These professionals know the reasons car keys stop working unexpectedly. Some of these reasons are outlined below.

Damaged or Worn Keys

Your car key might not work as expected when its grooves are run-down. It will be impossible for the key to fit in the ignition as it did before. Key tracks wear out after years of use, or you may have accidentally mishandled the keys and broken or bent them. 

Remember, for a key to work, it needs to fit with the tumblers and pins in the ignition. If there is minor damage, it won't start the car. Consider contacting an auto locksmith when you face this problem, so they can cut a replacement key that fits the ignition perfectly.

Faulty Lock

When the car lock gets damaged, it will be impossible for the key to work. Even if you apply intense pressure while turning the key, your efforts will be ineffective. This problem usually occurs when the lock has an internal system issue. In other cases, the keyhole might be clogged with dirt, dust, or other elements, making it difficult for the key to work. An auto locksmith can fix this issue and replace the key if you damage it while trying to open the lock.

Defective Ignition Cylinder

Your car key is designed to work with the ignition. However, it cannot function as expected without a functional mechanism. If you notice the car key doesn't function after inserting it into the ignition., you shouldn't assume the key is defective or broken. There is a probability that the ignition cylinder is the cause of the issue. If one or several mechanical components are worn out or damaged, they will need replacement so the key can work again.

You'll know you're dealing with a faulty ignition cylinder issue if the key can open the door but not start the vehicle or when the immobilizer indicator turns on. Don't hesitate to call an auto locksmith when you see these signs, so they can fix or replace the ignition cylinder.