Replace Key Fob Batteries

How to Open Your 2011 Mercury Mariner Key Fob & Change Battery

How to Open Your 2011 Mercury Mariner Key Fob & Change Battery

Keyless entry remote grant easy access to your car. If the key battery is weak or dead you’ll lose your keyless entry fob's ability to use distance opening function. It's not difficult to change the battery in your key fob, and it’s easier than you think. All tools, that you need is described in this article.

What kind of battery remote key fob use

Changing battery in keyless entry remote require flat head screwdriver and 1 CR2032 battery. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • flat head screwdriver
  • 1xCR2032 battery

Step by step instruction

A small coin battery installed inside the your key fob. Remove any internal key first, and then try to pry apart the keyless entry remote.

Accurately try to pry apart your remote key fob with hands or flat head screwdriver. Remove 1 CR2032 battery with flat head screwdriver.

Change old battery with new one CR2032. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you put battery wrong way.

When the new battery installed, check key fob functionality by pressing buttons. If everything working properly, assemble your keyless entry fob's body in reverse order.

At this point squeeze fob’s back cover together. Line your shell pieces together and put it together by hands from top to bottom. Check your key fob case for gaps. If it is not firmly closed try to repeat last step.

How to change the battery video instruction

How To Replace Mercury Mariner Key Fob Battery 2005 2011

Still not working? Buy new one

FAQ

Remote key fob of Mercury Mariner use 1xCR2032 batteries. Price for CR2032 batteries are under $6 depending on the type, brand and size packaging you buy. Take your old battery to the store, to find a proper replacement.

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

Changing your remote key fob battery is easy to do in 2011 Mercury Mariner. Most of car manufacturers think of the clients and make a special hole for remote key fob open.

Car service price for replace the battery in remote key fob is from $30 to as high as $500 depending on the make.

Key fob batteries in modern cars should be changed once in 4 years, also this will vary based on frequency of use and build quality. If your keyless entry remote shortened signal strength, you should change batteries before it stop working and make trouble for you.

These signs will warning you that it's probably time to change battery in your Mercury Mariner: low key battery indicator on dashboard, you didn't change battery more than 4 years, multiple clicks to unlock or lock doors required and signal strength reduced.
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Contents:

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

Other Mercury Models:

Fob Compatibility:

  1. FCC ID: OUCD6000022
  2. Models: 2005-2011 Mercury Mariner