Replace Key Fob Batteries

2009 Smart Fortwo Key Fob Battery Replacement Guide

2009 Smart Fortwo Key Fob Battery Replacement Guide

If your Smart keyless entry remote is not open doors properly, the battery likely must to be replaced. It's not difficult to change the battery in your remote key fob with our instruction. All you need is outlined below.

What is the battery remote key fob require

Changing battery in key fob require flat head screwdriver and 1xCR2016 battery. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.
  • flat head screwdriver
  • 1xCR2016 battery

Step by step guide

Inside of your keyless entry remote installed tiny button cell battery. Move the key out of the way if it is in the remote key fob.

Carefully try to pry apart your remote key fob with flat head screwdriver. Change CR2016 battery with flat head screwdriver.

Now it's time to install new battery in fob’s body. Be sure to connect the battery the right way around in a circuit. Your key fob will not work if you put battery wrong way.

When the new battery installed, check key fob by pressing buttons. If everything is functioning, assemble your keyless entry fob's shell in reverse order.

The last thing to do is put your cover back on fob. Carefully try to assemble the two halves together by hands from top to bottom. If your keyless entry remote case firmly closed, we done. If not, repeat the last step.

Video of remote key fob disassembly

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Frequently Asked Questions

Remote key fob of Smart Fortwo require 1xCR2016 batteries. Price for CR2016 batteries are under $4 build upon the size packaging, brand and type you buy. You can take old battery to the store, to be sure.

Keyless entry remote in most of cases reprogramming not required after battery replace. If your remote key fob not working, recheck new battery voltage. If it is not help, read user's manual or contact local dealer.

Yes, you can change battery in your 2009 Smart Fortwo remote key fob yourself. Most hard part is to disassembly fob’s case. It's pretty easy with our step by step guide.

Car service pricing for replace the battery in fob is from $30 to as high as $500 depending on the brand.

You should change batteries inside remote key fob of Smart Fortwo at least every 3-4 years. The lifetime of battery vary on frequency of use, quality and operating conditions. Lithium cells normally will last longer.

If your Fortwo signal strength reduced, key fob buttons not working, has low key battery indicator on dashboard or fob's battery more than 4 years old, it's probably battery replace inside keyless entry remote required. Currently installed battery is discharged with a high probability, but if it's not fix, keyless entry remote replace or repair required.
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Contents:

  1. Battery Size and Tools
  2. Replacement Guide
  3. Video Instruction
  4. FAQ

Other Smart Models:

Fob Compatibility:

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