2022 mazda cx5 key fob battery

Mazda CX-5 Smart Key Fob Battery Replacement Guide
How to change the battery in the intelligent key fob remote control for a 2nd generation 2017 to 2022 Mazda CX-5.

Table of Contents Show

What battery is used for Mazda CX
Can I use CR2032 in Mazda key fob?
What battery does a Mazda key fob take?
How do you change the battery in a 2020 CX

2019 CX-5 Smart Fob

Back Side of Key Fob

Ignition Key Release This automotive maintenance tutorial was specifically written to assist owners of the second generation (2017, 2018, 2019, 2020, 2021 and 2022) Mazda CX-5 SUV in changing the battery in the "smart" or "intelligent" key fob remote control for the "Advanced Keyless Entry System".

Owners of other Mazda vehicles such as the CX-3, CX-30, CX-7, CX-9, Mazda3, Mazda6, MX-30, MX-5 Miata, Mazda2, CX-4, CX-8 and BT-50 may also find these DIY instructions to be helpful.

The compatible replacement coin cell (also known as a "button" or "watch") battery is part number CR2025 which is available from various manufacturers such as Panasonic, Duracell, Energizer, Sony, Maxell and Toshiba.

The only tool needed to complete this procedure is a small flat head screwdriver such as from a precision screwdriver set (also known as a jeweler's screwdriver set).

You may also be able to use a small plastic pry bar tool.

The first step is turn over the fob and locate the sliding switch to release the backup / emergency metal ignition key.

Slide Release Switch

Remove Ignition Key

Small Gap At Edge Gently slide the switch to unlock the backup / emergency metal ignition key.

Pull the ignition key straight out of its slot.

Set the key aside in a safe place.

Locate the small gap between the front and rear halves of the fob assembly.

Insert Screwdriver

Gently Pry Apart

Separating Apart Halves Insert the small flat head screwdriver in between the two halves of the fob.

Very gently and carefully pry apart the fob housing.

You will need to remove and re-insert the screwdriver into several locations all along the edges of the fob to fully separate the two halves.

Please take your time and avoid using excessive force to prevent from cracking or breaking the plastic pieces. The two halves of the fob should pop apart relatively easily.

Rear Cover Removed

Round Battery Cover

Pry Off Battery Cap Set the back cover of the fob aside in a safe place.

Locate the round black plastic battery cap.

Gently pry off the battery socket cap with the small flat head screwdriver.

Battery Cover Removed

Lift Out Old Battery

Old Battery Removed Set aside the round cap aside in a safe place.

Use the flat head screwdriver to carefully lift the old battery out of the socket.

Try to avoid damaging the plastic retaining tabs, scratching the green circuit board or bending the metal electrical contacts.

Panasonic CR2025 3V

Key Fob Disassembled

Lower In New Battery The OEM (original equipment manufacturer) battery part number in this 2019 CX-5 was a Panasonic CR 2025 3 volt lithium coin cell.

Orientate the new CR2025 battery with the "+" positive side facing up towards you and the "-" negative side facing down into the socket.

Lower the new battery into the holder.

Gently pop the new battery down into place. Make sure it is flush in the socket.

Line Up Battery Cover

Push To Secure Cap

Line Up Back Cover Push the round plastic cap over the battery socket.

The cap should "click" securely into place. Make sure the cap is fully seated.

Line up the rear cover with the back side of the fob housing.

Gently Snap Together

Two Halves Secured

Slide In Metal Ignition Key Gently snap together the two halves of the fob.

Check to see if the two halves of the fob are flush together at every edge.

Replace the metal ignition key by sliding it straight into its slot.

The ignition key should "click" securely into the slot.

Fob Reassembled

Test Key Fob Battery

Parking Lights Flashing To test the new battery, stand near your SUV and press the "Unlock" or "Lock" buttons.

If the new battery is working properly, you should see the parking lights flash, the LED headlights may turn on and you'll hear the door locks opening and closing.

Note - You should not have to reprogram the key fob. Just changing the battery should not clear the original programming from the factory.

Be sure to write down the procedure in your vehicle's service records.

Please check out all of my 2017-2022 Mazda CX-5 DIY Repair & Maintenance Guides.

What battery is used for Mazda CX

While trying to change the key fob battery of your Mazda CX-5, you will need a CR2025 battery and a flat-head screwdriver with a soft tip that you will have to wrap with tape to prevent scratches on your key fob. Make sure to keep key fob parts in a neat space so that it doesn't go missing.

Can I use CR2032 in Mazda key fob?

MAZDA CX-3 Key Fob Battery Replacement – Supplies Needed Battery: You can use a CR2032 or equivalent battery for the 2021 Mazda CX-3 key fob.

What battery does a Mazda key fob take?

Before learning how to change a battery in a Mazda key fob, though, you'll need to have the following items on hand: A replacement battery on hand (CR2025 battery) Your Mazda key fob. A small flat head screwdriver with the head wrapped in tape to prevent scratches.

How do you change the battery in a 2020 CX

Twist the flathead screwdriver in the direction of the arrow and remove the upper cover. Remove the cap using the tape-wrapped flathead screwdriver. Remove the battery using tape-wrapped flathead screwdriver. Insert a new battery into the transmitter so that the positive pole is facing up.

mazda cx5 key fob battery