How to Open Your 2003 Chevrolet Avalanche Key Fob & Change Battery

Remote key fob grant access to your Chevrolet. If the keyless entry remote battery is dead you’ll not to be able lock car remotely. It's not complicated to change the battery in your remote key fob with our guide. All you need is outlined in this article.
What size battery does 2003 Chevrolet Avalanche remote key fob required
Before starting disassembly remote key fob make sure that you have all required tools and materials: one CR2032 battery and flat head screwdriver.- 1xCR2032 battery
- flat head screwdriver
Step by step instruction
A small coin cell battery installed inside the your keyless entry remote. Carefully try to pry apart your key fob with flat head screwdriver. Change 1xCR2032 battery with flat head screwdriver.
Get new battery and install it inside fob’s shell. Every battery has a negative and positive side and if you put the wrong connector down, the charge cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.
After the new battery installed, verify key fob by pressing buttons. If everything is functioning, assemble your fob’s case in reverse order.
At this point squeeze fob’s back cover together. Line your shell pieces together and assemble it in place by hands from top to bottom. Check your remote key fob case for gaps. If it is not firmly closed try to repeat last step.
Video of remote key fob opening
How To Replace A Chevrolet Avalanche Key Fob Battery 2003 - 2006
Still not working? Buy new one