Jeep Key Fob Battery: Everything You Need to Know

Amy S C
Dec 15, 2020

If you need to press the buttons on your Jeep key fob several times or it isn’t working at all, the problem could be your key fob battery. Jeep key fob batteries usually last between three and four years under normal use.

Replacement fobs can get expensive and need to be programmed. Replacing the Jeep key fob battery can be simple and a lot more affordable than replacing the entire key fob.

What kind of battery goes in a Jeep key fob?

Key fobs use small coin-type batteries. The number of your key fob battery will be printed on it. One common key fob battery is CR 2032. Depending on your Jeep model and year, your key fob could use a CR 2032, CR 2025, or a CR 2450 battery.

2020 Jeep Wrangler Key Fob On The Seat

Where Can I Find One, and How Much Will it Cost?

Hand Holding CR 2450 Batteries

You can find a Jeep key fob battery through various online retailers or auto supply and hardware stores. It will cost approximately $4.99, depending on your Jeep model and year. The largest model of key fob battery is CR 2450. It may cost more than smaller key fob batteries like CR 2025.

Steps for Replacing a Jeep Key Fob Battery

Before getting started with replacing your key fob battery, gather the supplies and equipment you’ll need. Essential items are:

  • A replacement battery (CR 2032, CR 2025, or CR 2450)
  • A small flat-head screwdriver

Once you’ve gotten together the items you need, insert the tip of your flat-head screwdriver into the key fob seam by your key ring mount. Press down gently to separate the top and bottom pieces of plastic. Be careful not to twist the screwdriver head because it could break the plastic. In certain Jeep models, you’ll also need to remove the emergency key before proceeding.

Open the top and bottom pieces. You’ll see the old battery, a circuit board, and a rubber keypad. Remove the old battery from the housing.

Take care to note which side of the battery is facing up. Replace the new battery in the same orientation as the old battery. Usually, the negative side of the battery will face down.

Put the circuit board back in the keypad, then replace the keypad. The last step is snapping the two key fob halves, top and bottom, back together.

You won’t need to reprogram your key fob if just replacing the key fob battery. However, you can find key fob reprogrammers at auto supply dealers.

Owner Reviews

accountCircle Cory on June 8, 2023
Wrong
My 2019 Jeep Wrangler uses a 2045. Not only is your list of batteries misleading, it does not even list the battery my key fob uses…
accountCircle J McDonald on February 7, 2024
Replaced key fob battery
Success with key fob replacement battery. Worked for an old geaser....Thanks. JRM 2 7 24
accountCircle Bill on September 25, 2023
Thanks!
2020 Jeep Wrangler was 2450. Worked great.
accountCircle ken on February 19, 2023
Battery replacement cherokee
Perfect good job.
avatar Amy S C
Amy Casil loves cars, offroading, and auto racing, and is the happy owner of a 2006 Jeep Wrangler Rubicon. She has also published many books on science, tech, and health topics.
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