2009 Mercury Grand Marquis Key Fob Battery Replacement Guide

2009 Mercury Grand Marquis Key Fob Battery Replacement Guide

If your Mercury key is no longer working perfectly, the cell battery surely needs to be changed. In this article, we described how to open your keyless entry remote and change your Mercury key battery step by step.

What size battery does 2009 Mercury Grand Marquis key fob take

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

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

Inside of your keyless entry remote installed button battery. Carefully try to pry apart your fob with hands or flat head screwdriver. Change 1 CR2032 battery with flat head screwdriver.

Replace old battery with fresh one CR2032. Battery must be placed with the same polarity as was a previous. Your key fob will not work if you by mistake put battery wrong way.

Before assembling keyless entry fob's case, check that all functions works by pressing buttons on remote key fob.

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. If your keyless entry remote body firmly closed, we done. If not, repeat the last step.

Key Fob Battery Replacement 2009 Mercury Grand Marquis Video

How To Replace Mercury Grand Marquis Key Fob Battery 2007 2008 2009 2010 2011

Still not working? Buy new one


Key fob of Mercury Grand Marquis use 1xCR2032 batteries. Price for CR2032 batteries are under $4-6 build upon the size packaging, brand and type you buy. You can take old battery to the store, with you to find a proper replacement.

Keyless entry remote in most of cases do not require to be reprogrammed after battery replace. If your key not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Yes, you can change battery in your 2009 Mercury Grand Marquis key fob yourself. Most difficult part is to disassembly fob’s case. It's pretty easy with our instruction.

The cost to replace the battery inside fob can run anywhere from $30 to as high as $500 depending on the car and the service pricing.

You should replace batteries inside key fob of Mercury Grand Marquis at least once in three or four years. The term of battery vary on their amount of use, operating conditions and quality.

These signs will alert you that it's probably time to change battery in your 2009 Mercury Grand Marquis: signal strength reduced, you didn't change battery more than 4 years, low key battery indicator on dashboard and multiple clicks to unlock or lock doors required.
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Fob Compatibility:

  1. FCC ID: OUCD6000022
  2. Models: 2006-2011 Mercury Grand Marquis