Mazda 6 Key FOB Battery Problems: What to Do?

Mazda 6 Key FOB Battery

The system’s keyless access may occasionally be flawed or cease to work at all due to the Mazda 6 key fob battery.

As a result, you will not be able to unlock or lock your door using just your key fob and may discover that neither the driver’s door button nor the passenger’s door button work.

If you notice that any of your key fobs’ batteries are dead, then you’ll want to learn how to replace them and have everything back to normal.

Why is My Mazda 6 Key FOB Battery Not Working

mazda 6 key fob battery

If your Mazda is locking itself while the FOB is in the car without it giving you a warning beep, then your Mazda Keyless Access is not working.

This means that something in the system is not working correctly. If this happens, there are two possible causes of this problem.

The first cause could be due to the battery on your key fob running out of power and causing an issue with getting a signal from the key fob.

The second cause could be a faulty key fob or a faulty wire within the vehicle’s keyless access system.

To fix these issues, you can either replace the battery on your key fop or have an expert look at the wiring in your vehicle’s keyless entry system.

Read also: Best Seat Covers for Mazda CX 5

Why is my Mazda key fob not working?

If it locks itself and does not emit a warning beep when the FOB is in the vehicle, your Mazda Keyless Access isn’t working. This demonstrates that the system is faulty in some manner. The receiver might be acting up, or the fob might be dead.

How do you reset a Mazda 6 key fob?

Step-by-Step procedure:

  1. Close all vehicle doors, open just a crack on the driver door and leave it that way. From the Ignition Switch, remove the key.
  2. The driver’s door was opened and closed three times.
  3. To program the first Remote, press the Unlock Button twice. To indicate successful programming, the door locks should cycle.

How do I start my Mazda 6 with a dead key fob?

If Your Mazda Vehicle’s Key Fobdies, Here Are Some Steps to Take:

  1. On the back of the key, there’s a tiny latch you’ll need to turn over.
  2. Pull down on the latch to reveal a traditional key that will emerge from the fob’s interior.
  3. Unlock the door manually by inserting the key in the driver’s side keyhole.

Why would key fob suddenly stop working?

The most common cause for a failure to transmit signals to the keyless entry system is a dead battery in the key fob. If the key fob is available, use it to unlock the car and turn on the ignition. Unlock the door using the key inserted in the fob if the spare fob is not accessible.

How to troubleshoot your key fob battery problem

In order to troubleshoot your Mazda key fob battery, you need to check a few different things. First, you want to make sure the problem is with the key fob and not the car.

mazda 6 key battery low warning

To do this, lock and unlock the door manually with your key or your FOB. If it locks and unlocks without any problems, then there is an issue with your FOB.

Otherwise, if locking and unlocking manually do not work either then it may be a problem with the car’s system.

Second, check whether or not you are getting an audible Mazda 6 key battery low warning beep when trying to open the car without your keyfob.

Where can I get my battery replaced?

The first step is to find the battery that fits your Mazda. If you have a 2009 Mazda6, then you need a CR1620 battery. For the Mazda 6 models, a CR2016 battery is needed.

The next thing you need to do is go to your local auto parts store and purchase the correct size and type of battery.

Next, remove the old key fob battery by unscrewing it from its compartment or removing it with a screwdriver if it’s stuck in there too tightly.

Then, insert the new key fob battery into place by lining up the notches on the side of the faceplate with those on top of the compartment.

Replacing your key fob battery yourself

How do you take apart a Mazda key fob? The Mazda 6 key fob battery replacement procedure can be followed by following these four steps.

  • First, remove the negative battery terminal from the car.
  • Second, take off the bottom of the steering column trim and unscrew the bolt holding the keyboard plate.
  • Third, take out the old keyless access chip (or module) in your Mazda 6.
  • Finally, place the new Mazda 6 key fop battery or reinstall it if you had just replaced it then reassemble your vehicle according to these instructions, and you are finished.

What happens if I don’t replace my battery?

Mazda keyless access is known for not only locking your car, but also unlocking it when you come back.

Forcing a person to have the key in their hand while they are attempting to unlock the car or wait for someone else with the Mazda keyless access (FOB) will cause them to unlock the door and immediately lock it again.

If you have encountered this issue and your Mazda 6 key fob battery 2017 is running low on power, then you need a new battery.

While this can be irritating sometimes and seem like an inconvenience, it is more of an annoyance than anything as nothing major has happened as a result of not having a working Mazda keyless access.

Additional information on key fobs and batteries

The Mazda 6 key fob battery type is a CR2032 lithium battery. This battery is what powers the keyless entry system on your Mazda.

mazda 6 key fob battery replacement

So if it doesn’t work, then you will not be able to lock or unlock your car from a distance. The battery can also go dead from time and use, but that should happen within five years of purchase.

If you are noticing that your Mazda is locking without warning when the keyless remote is in the car, then you should take it in for service as soon as possible because there could be an underlying problem with the safety system.