How to Replace the Battery in a 2010 Volkswagen Passat Key Fob

Key fob allow access to your Passat. If the key battery is dead or weak you’ll not to be able open car remotely. In this article, we walks you through how to open your remote key fob and replace your Volkswagen key battery.
What type battery does 2010 Volkswagen Passat keyless entry remote take
Replacing battery in keyless entry remote require CR2032 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.- flat head screwdriver
- 1xCR2032 battery
Simple steps to replace the battery in your car's remote key fob
A button cell battery installed in the your remote key fob. Open the key if it is in the keyless entry remote.
Gently try to pry apart your keyless entry remote with flat head screwdriver. Remove one CR2032 battery with flat head screwdriver.
Now it's time to install new battery in keyless entry fob's case. Battery must be placed with the same polarity as was a previous. Your remote key fob will not work if you by mistake put battery wrong way.
Before assembling fob’s case, verify that all functions works by pressing buttons on keyless entry remote.
The last thing to do is put your cover back on fob. Accurately try to put the pieces together by hands from top to bottom. Check your remote key fob shell for gaps. If it is not tightly closed try to repeat last step.
How to replace the battery video instruction
Key Battery VW Passat HOW TO change