Jeep Compass · Elgin CDJR · Streamwood, IL

Jeep Compass Key Fob Battery

What battery does a Jeep Compass key fob take, and how do you change it? Here is what the 2026 Jeep Compass owner's manual says about the battery type, the replacement steps, the warnings and how to start a Compass when the fob battery is low.

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Jeep Compass on an open highway at sunset
Jeep Compass
CR2032Replacement battery: one coin cell
4 stepsIn the manual's replacement procedure
Match the +Battery + sign to the + on the clip
Nose to STARTBackup start with a low fob battery

The short answer

The 2026 Jeep Compass owner's manual lists one CR2032 coin battery for the key fob and recommends a battery obtained from Mopar. You remove the emergency key, separate the fob halves with a #2 flat-blade screwdriver or a coin, swap the battery so its (+) sign matches the (+) sign inside the battery clip, and snap the halves back together.

Signs of a low Compass key fob battery

The manual says that if the ignition switch does not change when you push the button, the key fob may have a low or fully depleted battery. A low key fob battery can be verified in the instrument cluster, which will display directions to follow.

From the 2026 Jeep Compass owner's manual (Key Fob), read November 8, 2026.

Replacing the Compass key fob battery

The manual lists these steps for replacing the CR2032 battery:

  1. Remove the emergency key by sliding the emergency key release on the back of the key fob and pulling the emergency key out with your other hand.
  2. Separate the key fob halves using a #2 flat-blade screwdriver or a coin, and gently pry the two halves apart. Make sure not to damage the seal.
  3. Remove the back cover to reach the battery and replace it. Match the (+) sign on the battery to the (+) sign on the inside of the battery clip, which is on the back cover.
  4. Snap the two halves of the key fob case back together.

From the 2026 Jeep Compass owner's manual (Replacing The Battery In The Key Fob), read November 8, 2026.

What the manual says to watch for

The manual recommends a battery obtained from Mopar, because aftermarket coin battery dimensions may not meet the original OEM coin battery dimensions. It also says not to touch the battery terminals on the back housing or the printed circuit board, and to avoid touching the new battery with your fingers, because skin oils may cause the battery to deteriorate; if you do touch it, clean it with rubbing alcohol.

The manual warns that the fob contains a coin cell battery that must not be swallowed: a swallowed coin cell can cause severe internal burns in just two hours and can lead to death. Keep new and used batteries away from children, and seek immediate medical attention if you think a battery may have been swallowed or placed inside any part of the body.

From the 2026 Jeep Compass owner's manual (Replacing The Battery In The Key Fob), read November 8, 2026.

Starting a Compass with a low fob battery

If the ignition state or mode does not change when you push the button, the manual says the key fob may have a low or depleted battery. As a backup, put the nose side of the key fob (the side opposite the emergency key) against the START/STOP ignition button and push to operate the ignition.

See our Compass remote start guide and Compass warning lights guide for more.

From the 2026 Jeep Compass owner's manual (Keyless Enter 'n Go Ignition), read November 8, 2026.

Compass service at Elgin CDJR

Want us to handle it? Bring your fob to our Jeep service center, or see the new Jeep Compass and the Compass Trailhawk. Schedule service or see our service specials.

Our service department is open Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m., and is closed Sunday. Elgin CDJR is at 1500 W. Lake St. in Streamwood. Get directions.

Jeep Compass key fob battery FAQ

What battery does a Jeep Compass key fob take?

One CR2032 coin battery, according to the 2026 Jeep Compass owner's manual. The manual recommends a battery obtained from Mopar.

How do I open a Compass key fob?

Remove the emergency key first, then separate the fob halves with a #2 flat-blade screwdriver or a coin, prying gently so you do not damage the seal.

How do I know my Compass key fob battery is low?

The manual says the ignition may not change when you push the button, and that the instrument cluster can confirm a low key fob battery and display directions to follow.

Can I start my Compass if the key fob battery is dead?

The manual describes a backup method: put the nose side of the fob, opposite the emergency key, against the START/STOP ignition button and push it.

Which way does the battery go in?

Match the (+) sign on the battery to the (+) sign on the inside of the battery clip on the back cover, according to the manual.

What are your service hours?

Monday to Friday 7 a.m. to 7 p.m. and Saturday 7:30 a.m. to 4 p.m. We are closed Sunday.

Sources

The battery type, replacement steps, warnings and backup starting method are from the 2026 Jeep Compass owner's manual on Mopar (PDF dated August 14, 2025), read November 8, 2026. Our address and service hours are from our own website, checked the same day.

  1. 2026 Jeep Compass owner's manual (key fob and ignition pages; PDF last modified August 14, 2025), Mopar, read November 8, 2026
  2. Jeep service center page: service hours, address, Elgin CDJR