How to Open Your 2003 Oldsmobile Alero Key Fob and Change Battery

How to Open Your 2003 Oldsmobile Alero Key Fob and Change Battery

Keyless entry remote grant access to your Oldsmobile. Once the key fob battery is weak or dead you not to be able close car remotely. In this post, we are going to tell you how to disassembly Oldsmobile remote key fob and replace a weak battery yourself. If you choose to do it at home near Alero, follow our instruction, but don't forget to check tools and materials required before you start.

What kind of battery keyless entry remote use

Changing battery in key fob require 1 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

Step by step instruction

A small button cell battery installed inside the your remote key fob. Delicately try to pry apart your key fob with hands or flat head screwdriver. Remove CR2032 battery with flat head screwdriver.

Get new battery and install it in fob’s shell. Battery must be installed 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, make sure that all functions works by testing buttons on circuit board.

At this point squeeze fob’s back cover together. Line your case pieces together and assemble it together by hands from top to bottom. If your keyless entry remote case firmly closed, we done. If not, repeat the last step.

Video of keyless entry remote opening

How To Replace An Oldsmobile Alero Key Fob Battery 2001 - 2004

Still not working? Buy new one


Keyless entry remote of Oldsmobile Alero use 1xCR2032 batteries. Price for CR2032 batteries are under $4 build upon the type, brand and size packaging you buy. Take your old battery to the store, to find a proper replacement.

Often, after key fob battery replace, you do not need to reprogram. Don't be scare of this procedure, because often it's described in user's manual.

Replacing your remote key fob battery is simple to do in 2003 Oldsmobile Alero. Most of car manufacturers think about customers and make a special hole for keyless entry remote disassembly.

The price to change the battery in key fob can run anywhere $50-600 depending on the car and the service station.

Keyless entry remote batteries in Oldsmobile Alero should be changed every 3-4 years, also this will differ based on usage and build quality. If your key fob shortened signal strength, you should change batteries before it stop working and make problems for you.

If your car key fob buttons not working, has low key battery indicator on dashboard, fob's battery more than 4 years old or signal strength reduced, it's probably battery change in key fob needed. Installed battery is discharged with a high probability, but if it's not help to fix issues, key fob replace or repair required.
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Fob Compatibility:

  2. Models: 2001-2004 Oldsmobile Alero