2009 Mercury Mountaineer Key Fob Battery Replacement Instructions
If your car key fob isn't open doors well, the battery surely must to be replaced. In this case, you’ll benefit from knowing how to disassembly Mercury remote key fob and replace a dead battery yourself. If you choose to do it at home near Mountaineer, use this instruction, but don't forget to check all you need before you start.
What size battery does 2009 Mercury Mountaineer keyless entry remote take
Before you start to open key fob make sure that you have all recommended tools and materials: flat head screwdriver and CR2032 battery.- 1xCR2032 battery
- flat head screwdriver
Step by step instruction
Inside of your key fob installed tiny button cell battery. Delicately try to open your remote key fob with pry tools. Change 1 CR2032 battery with flat head screwdriver.
Now it's time to install new battery in keyless entry fob's case. Battery must be installed with the same position as was a previous. Your remote key fob will not work if you mistakenly place battery wrong way.
When the new battery installed, check remote key fob by pressing buttons. If all functions works, 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 pieces together by hands from top to bottom. If your key fob body tightly closed, we done. If not, repeat the last step.
How to replace the battery video guide
How To Replace Mercury Mountaineer Key Fob Battery 2008 2009 2010
Still not working? Buy new one