How to Replace the Battery in a 1991 Toyota MR2 Key Fob

How to Replace the Battery in a 1991 Toyota MR2 Key Fob

Key fob allow easy access to your auto. When the keyless entry remote battery is weak or dead you’ll not to be able open doors from distance. It's not complicated to replace the battery in your remote key fob, and it’s easier than you think. Everything you need is outlined in this post.

What kind of battery key fob require

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

Simple steps to change the battery in your MR2's key fob

Inside of your remote key fob installed button cell battery. Remove fasteners on the back of the key fob. Flip the key fob over and find for at least 1 screw holding in the plastic.

Accurately try to disassemble your fob with flat head screwdriver. Replace 1xCR2025 battery with flat head screwdriver.

Replace old battery with new one CR2025. Battery must be placed with the same position as was an old. Your keyless entry remote will not work if you by mistake put battery wrong way.

When the new battery installed, verify remote key fob by pressing buttons. If all functions works, assemble your keyless entry fob's body in reverse order.

The last thing to do is put your cover back on fob. Accurately try to assemble the pieces together by hands from top to bottom. Check your remote key fob case for gaps. If it is not tightly closed try to repeat last step. Screw the back of the remote key fob.

Key Fob Battery Replacement 1991 Toyota MR2 Video

How To Replace Toyota MR2 Key Fob Battery 1991 1992 1993 1994

Still not working? Buy new one

Frequently Asked Questions

Key fob of Toyota MR2 require 1xCR2025 batteries. Price for CR2025 batteries are under $4 depending on the size packaging, type and brand you buy. You can take old battery to the store, to find a proper replacement.

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

Replacing your remote key fob battery is easy to do in 1991 Toyota MR2. Most of car manufacturers think of the customers and make a special hole for key fob open.

Car service pricing for change the battery in remote key fob is $50-600 depending on the brand.

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

If your MR2 key fob buttons not working, has low key battery indicator on dashboard, fob's battery more than 4 years old or need multiple clicks to unlock or lock doors, in most cases battery change inside key fob needed. Current battery is weak with a high probability, but if it's not help to fix issues, key fob change or repair required.
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Fob Compatibility:

  1. FCC ID: BAB237131-022
  2. Models: 1991-1995 Toyota MR2