How to Replace the Battery in a 2010 Mercury Marquis Key Fob
Key fob grant easy access to your car. Once the key fob battery is weak or dead you’ll lose your keyless entry fob's ability to control remote opening function. It's not difficult to change the battery in your remote key fob with our ultimate instruction. All tools, that you need is described below.
What is the battery key fob require
Prior to disassembly key fob be sure that you have all required tools and materials: 1 CR2032 battery and flat head screwdriver.- flat head screwdriver
- 1xCR2032 battery
Simple steps to change the battery in your car's key fob
A small coin battery installed in the your key fob. Accurately try to disassemble your keyless entry remote with pry tools. Replace one CR2032 battery with flat head screwdriver.
Now it's time to install new battery inside keyless entry fob's body. Be sure to connect the battery the right way around in a circuit. Your key will not work if you place battery wrong way.
When the new battery installed, verify remote key fob functionality by pressing buttons. If everything is functioning, assemble your keyless entry fob's body in reverse order.
The last thing to do is put your cover back on fob. Delicately try to put the two halves together by hands from top to bottom. If your key body tightly closed, we done. If not, repeat the last step.
Video of key fob disassembly
How To Replace Mercury Grand Marquis Key Fob Battery 2007 2008 2009 2010 2011
Still not working? Buy new one