What To Do When Your Car Battery Is Dead And Your Doors Won’t Open

Is My Car Battery Dead?
Is My Car Battery Dead? from wrench.com


Having a dead car battery can be a frustrating experience, especially when it prevents you from accessing your vehicle. In this article, we will discuss what you can do when your car battery is dead and your doors won’t open.

Check the Key Fob Battery

The first thing you should do is check the battery of your key fob. If the battery is dead, it may prevent your doors from unlocking. Replace the battery and try again. If this doesn’t solve the issue, move on to the next step.

Use the Manual Key

Most modern cars come with a manual key hidden within the key fob. Look for a small button or switch on the key fob that releases the manual key. Use this key to manually unlock the driver’s side door. Once inside the car, you can then open the other doors from the inside.

Jump-Start the Battery

If your car has a manual transmission, you can try jump-starting the battery. Find another vehicle with a working battery and park it close enough to your car so that the jumper cables can reach both batteries. Connect the red cable to the positive terminal of your dead battery and the other end to the positive terminal of the working battery. Connect the black cable to the negative terminal of the working battery and the other end to a metal surface on your car. Start the working vehicle and let it run for a few minutes. Then, try starting your car.

Call for Assistance

If none of the above methods work, it is advisable to call for professional assistance. Contact a local roadside assistance service or a professional locksmith who can help you gain access to your car and either jump-start the battery or replace it if necessary.

Prevention Tips

To avoid finding yourself in this situation again, here are some prevention tips:

Regularly Check the Battery

Make it a habit to check your car battery regularly and replace it if necessary. Most car batteries have a lifespan of around three to five years.

Keep a Spare Key

Consider keeping a spare key in a safe place outside the car, such as at home or with a trusted friend or family member. This will ensure that you always have a backup in case of emergencies.

Invest in a Battery Charger

A battery charger can help you keep your car battery charged, especially if you don’t use your vehicle frequently. Regularly charging your battery can prolong its lifespan and prevent it from dying unexpectedly.


Dealing with a dead car battery and locked doors can be a frustrating experience. By following the steps outlined in this article, you can regain access to your vehicle and prevent similar situations in the future. Remember to prioritize safety and seek professional help if needed.