Why Is My Key Not Unlocking My Car?

There’s nothing more frustrating than heading out to your car on a busy morning and finding that it won’t unlock!

A whole host of reasons can cause this issue, from dead key fob batteries to broken locking systems.

Identifying the cause of the problem is the first step in finding the solution you need to get you back on the road. Below, we’ve listed three of the most common reasons for keys failing to unlock a car door.

If you’re experiencing these problems, contacting a qualified and experienced auto locksmith in Coffs Harbour is the best course of action.

Reason #1: The Car Lock Is Broken

If you’re unable to unlock your car door with a fob, keyless entry device, or traditional key, there may be a problem with the physical lock itself. There’s likely damage to the lock cylinder or lock assembly.

Thankfully, identifying the cause of the damage is fairly easy. Insert the key into the lock and attempt to turn it. If it turns properly but doesn’t unlock the door, the lock assembly is likely damaged.

If your key fob can open the door, but the traditional key can’t, the lock cylinder is the likely culprit.

Some other potential causes for broken locks include dirt and debris build-up and collision damage.

The best way to solve this problem is to contact a licensed auto locksmith or your car dealership to repair or replace the lock. Hiring a locksmith is typically the more affordable option- but make sure they are licensed to work on vehicles.

Reason #2: Your Key Is Damaged

Another common reason for keys failing to unlock a vehicle is damage to the key itself. If you’re wondering if this might be the case, some signs to look out for include:

• The key will not start the car or open a lock.
• You can successfully open the lock with other methods, like a spare key or fob.

The best solution here is to purchase a replacement key from the car’s manufacturer or have one cut by an automotive locksmith. If you need a new transponder, the locksmith must reprogramme it to your vehicle.

Reason #3: Your Fob’s Battery Is Dead

If you have a keyless entry remote or key fob, the most likely reason your car won’t unlock is a dead key battery. This is a common problem and is easily solved with a replacement battery.

Car fob batteries last from three to four years on average—and that’s with normal use. Some other factors can affect battery life, including how you store the fob and how often you use it.

Many key fobs come with a backup traditional key, so you may be able to use this to unlock your vehicle. If your car still won’t unlock, review some of the potential reasons listed above.

Having Trouble With Your Key?

If you’re still unable to access your car, we’re the local automotive locksmith experts in Coffs Harbour that are ready to help.

You can contact us today at Coffs Coast Locksmiths on 0488 535 313 or enquire online and we’ll advise you on when we can assist you asap.