You can do more than just lock or unlock your car with your Mazda CX-5 key fob—you can also enable panic mode or even open it up to change the battery!

Pressing either the lock or unlock button twice will cause your Mazda CX-5’s horn to chirp and its lights to flash
The Mazda CX-5 panic button allows you to activate your car’s anti-theft alarm to deter suspicious activity that you’ve been able to spot from afar.
You’ll need a small flat-head screwdriver to access your Mazda CX-5 key fob battery and a fresh CR2025 battery to replace it.

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How to enable Mazda CX-5 key fob tricks

First, let’s get a brief overview of what your Mazda CX-5 key fob can do:

Remote lock: Secure your car with ease.

Remote unlock: Your car will be ready for you before you get to it.

Panic mode: Feeling threatened? Call for help with panic mode.

Changing the battery: If your Mazda key fob’s battery dies, you’ll need to replace it.

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Mazda CX-5 key fob basics: unlock and lock

The Mazda CX-5 key fob allows keyless entry to unlock and lock your car doors and power liftgate from a distance:

To unlock your Mazda CX-5: Hit the unlock button once. Hit the button twice to sound the horn and flash the lights.

To lock your Mazda CX-5: Hit the lock button once. Press this button twice to hear the horn and get light feedback while locking the vehicle.

Mazda CX-5 Panic mode

Sometimes a situation arises where you need to quickly call for help or scare someone away—that’s what panic mode is for.

What to do: Press and hold the panic button on your Mazda CX-5 key fob for one or more seconds to activate its car alarm. To turn off panic mode, press any other button on your key fob.

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How to open your keyfob

You’ll need to open your Mazda CX-5 key fob if the battery ever needs to be replaced.

What you’ll need:

CR2025 battery

A small, flat-head screwdriver

Follow these steps to open up the back of your CX-5 key fob and replace the battery:

Remove the metal auxiliary key by pressing the auxiliary key button on the back of your key fob.

This will expose slots on either side of the key fob case. Use the screwdriver to gently pry these open.

Once the case is open, set it aside in a safe place where you won’t lose it.

Remove the battery cap and gently remove the dead battery, taking care not to damage the rubber ring it sits on. If you damage this ring, you’ll need to replace it before continuing.

Set the replacement battery in place on top of the rubber ring with the + sign facing up.

Return the battery cover to its proper place and gently press until you hear it click. Close the case, replace the auxiliary key, and close up the key fob.

When in doubt: Check your Mazda CX-5

owner’s manual

for more detailed instructions to replace your key fob battery. If you’re not able to resolve the problem, bring your Mazda to a dealership service center.

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