How to Open Your 2000 Toyota MR2 Key Fob and Change Battery

How to Open Your 2000 Toyota MR2 Key Fob and Change Battery

If your MR2 key isn't working perfectly, the cell battery most likely must to be replaced. It's not complicated to replace the battery in your key fob with our guide. All tools, that you need is described below.

What kind of battery remote key fob require

Before going to disassembly keyless entry remote be sure that you have all recommended tools and materials: flat head screwdriver, 1 CR2025 battery and phillips head screwdriver.
  • flat head screwdriver
  • phillips head screwdriver
  • 1xCR2025 battery

Simple steps to replace the battery in your car's key fob

Inside of your keyless entry remote installed coin cell battery. Remove fasteners on the back of the keyless entry remote. Spin the key fob over and look for at least 1 screw holding in the plastic.

Carefully try to open your remote key fob with flat head screwdriver. Replace CR2025 battery with flat head screwdriver.

Now it's time to install new battery inside fob’s shell. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

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

The last thing to do is put your cover back on fob. Gently try to put the two halves together by hands from top to bottom. Inspect your fob case for gaps. If it is not tightly closed try to repeat last step. Screw fastener in the back of the keyless entry remote.

Video of key opening

How To Replace Toyota MR 2 Spyder Key Fob Battery 2000 2001 2002 2003 2004 2005

Still not working? Buy new one

Frequently Asked Questions

Key fob of Toyota MR2 use 1xCR2025 batteries. Price for CR2025 batteries are under $4 build upon the brand, type and size packaging you buy. You can take 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.

Yes, you can replace battery in your 2000 Toyota MR2 key yourself. Most hard part is to disassembly keyless entry fob's case. It's pretty simple with our step by step guide.

Car service cost for change the battery in remote key fob is from $30 to as high as $500 depending on the car.

You should replace batteries inside keyless entry remote of Toyota MR2 at least every three years. The term of battery vary on their amount of use, quality and operating conditions. Famous brands cells usually will last longer.

If your auto need multiple clicks to unlock or lock doors, key fob buttons not working, fob's battery more than 4 years old or has low key battery indicator on dashboard, in most cases battery change in keyless entry remote required. Current battery is dead or weak with a high probability, but if it's not fix, keyless entry remote change or repair required.
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Fob Compatibility:

  1. FCC ID: BAB237131-056
  2. Models: 2000-2005 Toyota MR2 Spyder