These Tricks Will Save You When Your Key Breaks | March 22, 2025

Don’t panic if your key dies and you don’t have a spare battery. These little-known methods will get you back on the road.

Your car key is a small but powerful device. Have you ever wondered what would happen if it died while you were, say, grocery shopping? How do you start a car with a dead key? Luckily, there is a way to do it.

How to Use Your Car Key When It Has a Dead Battery

So your key has no battery left and you don’t have a spare battery. Don’t worry, unlocking and starting a car with a dead key is actually quite simple.

In most cars, the system is designed to work with a remote that has a low or completely dead battery. Of course, the exact method for using a dead key will vary depending on the car model, so check your owner’s manual for details. Below are some common tips that work for many types of vehicles.

Step 1: Unlock the car.

Luckily, most key fobs usually come with an old-fashioned car key.

Locate the small slide button on the back of the key fob. Slide or press the button to remove the cover. You may need to use your fingernail and a little force to free it.

Step 2: Open the car door

Once you have the key blade, use it to open the door. If you don’t see the key slot on your door, it’s probably hidden behind the door handle cover. Use the key to gently tilt the cover and access the key slot.

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