How to Add, Change, and Reprogram a Mazda 3 Spare Key

If you've dropped your key fob on the ground or it has stopped working, it's recommended to keep an extra key in your pocket. This article will explain everything you must be aware of when adding, changing, and programming your mazda 6 Key 3 key fobs.

A word of caution Certain keys need to be programmed by a professional locksmith or dealer, whereas others don't. Only use genuine Mazda replacements to replace your key fob.

How do you add an additional key

If you're unable to get a spare key from the dealer when you buy your Mazda 3 or accidentally break the one you have do not fret -- there's still an option to make another key. To do this, you'll need an inexpensive flathead screwdriver as well as the new CR2025 batteries. Once you've got the tools then it's time to open the key fob. Find the key release auxiliary. The button is on the underside the metal portion. It's easy to locate. The cover on the back should fall off the moment you press the button. Next, place the head of the screwdriver into the notch or space on the top of the metal part and pull it away.

Insert your spare key or a new one into the slot after taking out the accessory key. Set the ignition to ON, and wait for around five seconds before setting it to OFF. This will allow the system to recognize the new key and start your vehicle in the future.

You can only program three keys on your Mazda 3. You don't want to have to utilize more than two key fobs to start your car. This is a safeguard to stop unauthorized users from activating your keys and then starting your vehicle.

How to Reprogram a Spare Key

If you have a spare key, it's important to know how much does it cost to replace a mazda key to reprogram it in case your original key is lost or stolen. This will stop unauthorized persons from abusing your vehicle and re-starting it. This should work with any Mazda. You will require two keys that are functioning to begin the reprogramming process. If you don't have the two working keys, you'll have to bring your car to the dealership to complete the process.

Begin by stepping into the driver's position, and shutting all doors, with the exception of the one that is open. Insert the first working key into the slot, then set the ignition to the ON position. Take five seconds before removing the key. Repeat with the second key.

After programming your new key, you should have three keys that will start your car in the near future. Test each key to make sure they're working correctly before throwing them away.

You should think about buying an extra mazda key cutting 3 remote, especially in cases where your car is prone to issues. You can find one online or at your local automotive retailer, but make sure to read reviews before buying so that you can avoid purchasing one that's not compatible with your car.

How do I change the battery on a spare key

It's depressing to find out that your key fob has failed, and you are unable to unlock your car. It's simple to replace the battery yourself and save money at the dealer.

Press the auxiliary key button at the back of the keyfob. This will detach the key made of metal and reveal an opening on each side of the case. Press the flathead screwdriver into one of these slots and then gently pry apart the two sides of the case. When the battery is completely exposed, take it out and place the case somewhere you won't forget it.

Be sure to have a new battery ready before you begin. You can find these at any store that sells batteries or at an Mazda dealer close to Winter Garden. The correct battery is crucial to make sure that your keyfob functions properly.

Next, put the replacement battery in the correct place and replace the battery cap. Be careful not to damage the small rubber ring the battery rests on. Press the two halves together until you hear the click.

How to Reset the Keyless Entry System

The key fob that you have in your Mazda 3 is not only an extra convenience, but also an important security feature. If you lost your key or had it stolen the car will not start even if you have the spare key fob. This is because the fob that you have to be reset at the dealership in order to function properly. This could be a costly and frustrating experience therefore it's a great idea to know how to reset the system yourself.

Remove the battery from the system for 15 minutes. This will eliminate any residual electric current from the onboard computer. Then, disconnect both LF-ECU and demand switch connectors. Check for continuity between the terminals.

To program a new key, or a spare, insert it into the slot and turn the ignition to ON. Turn off the ignition after approximately five minutes. The information from the key will be added to the vehicle's computer and the new fob will be able to start your vehicle in the future. You can program up to three fobs, but you must only use one at a time. This stops unauthorized individuals from copying your key and gaining access to your vehicle. You can purchase a new keyfob on the internet, but it must be programmed and cut by an authorized dealer.