How to Open Your 2013 Smart Fortwo Key Fob & Change Battery

How to Open Your 2013 Smart Fortwo Key Fob & Change Battery

If your car key isn't working perfectly, the cell battery probably needs to be changed. In this case, we demonstrate how to disassembly your key fob and change a weak or dead battery DIY. If you decide to do it at home near Fortwo, follow our guide, but first make sure you have everything you need before you start.

What is the battery key fob require

Before you start to open key fob check all that you need: 1 CR2016 battery and flat head screwdriver.
  • 1xCR2016 battery
  • flat head screwdriver

Simple steps to replace the battery in your car's keyless entry remote

A small button battery installed in the your key fob. Move the key out of the way if it is in the remote key fob.

Carefully try to open your keyless entry remote with hands or flat head screwdriver. Remove one CR2016 battery with flat head screwdriver.

Replace old battery with new one CR2016. Battery must be placed with the same polarity as was an old. Your key will not work if you mistakenly put battery wrong way.

After the new battery installed, check key fob functionality by pressing buttons. If all functions works, assemble your fob’s shell in reverse order.

The last thing to do is put your cover back on fob. Delicately try to put the pieces together by hands from top to bottom. Inspect your fob body for gaps. If it is not tightly closed try to repeat last step.

Video of key opening

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Still not working? Buy new one

Frequently Asked Questions

Keyless entry remote of Smart Fortwo require 1xCR2016 batteries. Price for CR2016 batteries are under $6 depending on the brand, size packaging and type you buy. Take your old battery to the store, to find a proper replacement.

Usually, after key fob battery replace, you do not need to reprogram. Key fob reprogramming procedure often described in user's manual of your vehicle.

Replacing your key fob battery is simple to do in 2013 Smart Fortwo. Most of car manufacturers think of the customers and make a special hole for key fob open.

The cost to change the battery in keyless entry remote is in range $50-600 depending on the brand and the service station.

You should change batteries inside key fob of Smart Fortwo at least every 4 years. The lifetime of battery vary on usage time, quality and operating conditions.

If your car need multiple clicks to unlock or lock doors, signal strength reduced, key fob buttons not working or has low key battery indicator on dashboard, in most cases battery change in key fob required. Current battery is dead with a high probability, but if it's not fix problem, keyless entry remote replace or repair needed.
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Fob Compatibility:

  1. FCC ID: KR55WK45144
  2. Models: 2005-2015 Smart Fortwo