Open a Mazda with a Dead Key Fob

How to Open a Mazda with a Dead Key Fob

This page holds all of the emergency open or back-up open procedures needed for Mazda vehicles if the battery in the key fob dies or if there are electrical signals interfering with the fob.

• First, if you are already inside, click here.
• Second, you can find some video help here!
• Finally, if you need or want another manufacturer, click here.

Retrieving the mechanical key

Early key fob

For early Mazda models, slide the release lever on the back of the advanced key (remote control or ‘clicker’) to release the auxiliary (mechanical) key. Pull out the auxiliary key from the advanced key. Use the key to unlock the driver’s door.

2020 and newer fob

In 2020, Mazda introduced a new key fob style. It is distinguished by the lock, unlock etc. buttons being found on one side of the fob. The mechanical or auxiliary key is found inside.

To access it, slide the lever found on the top of the fob towards the side, as the arrow indicates. The back cover can then be slid away in the opposite direction and removed. The mechanical key can be seen inside and is simply lifted away, as shown.

If a key hole is visible, simply insert the mechanical key and turn and you’re in.

New door handle, 2020

However, also in 2020, Mazda introduced a new door handle in the the Mazda3 and CX-30 models. This change has moved to the CX-50 and CX-90 by 2025. In these models, the key hole can be seen only when the door handle is pulled to the open position. It may be awkward to reach and drivers with large hands may have difficulty, but the mechanical key must be inserted into the key hole while the door handle is pulled open. See the image to the right.

Once inserted, turn the key to the right. Return the key to the original position and remove it. Release the handle and pull it open again and you’ll be inside the car.

For pre-2020 models, there is video help here.

Models examined include CX5, CX9, CX30, Miata, Mazda3, Mazda6, and MX 5. Model years 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, and 2025.

Continue to Part II, Getting Started …

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The information on this website is provided for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.

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