How to Open Your 2007 Cadillac STS Key Fob and Change Battery

How to Open Your 2007 Cadillac STS Key Fob and Change Battery

If your car remote key fob is not open doors properly, the battery likely needs to be replaced. In this article, we demonstrate how to open Cadillac key fob and change a dead or weak battery yourself. If you choose to do it at home near STS, follow our guide, but first make sure you have all you need before you start.

What size battery does 2007 Cadillac STS key fob required

Changing battery in keyless entry remote require 1 CR2032 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the size of your keyless entry fob's batteries.
  • 1xCR2032 battery
  • flat head screwdriver

Step by step guide

Inside of your key fob installed coin battery. Gently try to pry apart your key with hands or flat head screwdriver. Replace 1 CR2032 battery with flat head screwdriver.

Now it's time to install new battery in fob’s case. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.

Before assembling fob’s case, verify that everything working fine by pressing buttons on circuit board.

At this point squeeze fob’s back cover together. Line your shell two halves together and put it in place by hands from top to bottom. Check your keyless entry remote body for gaps. If it is not tightly closed try to repeat last step.

How to change the battery video instruction

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Still not working? Buy new one

Frequently Asked Questions

Key fob of Cadillac STS use 1xCR2032 batteries. Most CR2032 batteries are under $4-6 depending on the type, size packaging and brand you buy. You can take old battery to the store, to find a proper replacement.

Keyless entry remote in most of cases reprogramming not needed after battery replace. If your keyless entry remote not working, recheck new battery voltage. Otherwise, read user's manual or contact local dealer.

Replacing your keyless entry remote battery is easy to do in 2007 Cadillac STS. Most of car manufacturers think about customers and make a special hole for key fob open.

Auto repair shop's pricing for replace the battery in remote key fob is $50-600 depending on the brand.

Remote key fob batteries in Cadillac STS should be replaced once in three or four years, although this will vary based on usage and battery quality. If your keyless entry remote decreased signal strength, you should replace batteries before it stop open doors and make trouble for you.

These signs will warn you that it's possible time to replace battery in your Cadillac STS: you didn't change battery more than 4 years, multiple clicks to unlock or lock doors required, key fob buttons not working and signal strength reduced.
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Fob Compatibility:

  1. FCC ID: M3N65981403
  2. Models: 2005-2011 Cadillac STS