How to Open Your 1991 Buick Century Key Fob and Change Battery

If your Century remote key fob is not working correct, the battery more likely must to be changed. It's not complicated to replace the battery in your key fob with our step by step instruction. All tools, that you need is explained below.
What type battery does 1991 Buick Century key fob required
Before you start to open remote key fob check all that you need: flat head screwdriver and two CR2016 batteries.- flat head screwdriver
- 2xCR2016 batteries
Step by step instruction
Inside of your keyless entry remote installed coin battery. Carefully try to pry apart your key fob with hands or flat head screwdriver. Remove two CR2016 batteries with flat head screwdriver.
Replace old batteries with fresh one CR2016. Be sure to connect the battery the right way around in a circuit. Your keyless entry remote will not work if you place battery wrong way.
Before assembling fob’s case, verify that everything working properly by testing buttons on circuit board.
At this point squeeze fob’s back cover together. Line your shell two halves together and assemble it together by hands from top to bottom. Inspect your key case for gaps. If it is not firmly closed try to repeat last step.
Video of remote key fob disassembly
How To Replace Buick Century Key Fob Battery 1991 1992 1993
Still not working? Buy new one