How to Add, Change, and Reprogram a Mazda 3 Spare Key
It's a good idea to keep a spare key on hand in case you lose the keyfob you were using or it was unable to function. This article will show you how to add, change or reprogramme the Mazda 3 keyfobs.
A word of warning: some keys require programming by a professional locksmith or dealer, while others do not. Make sure to make use of official Mazda replacements for your key fob.
How to Add a Spare Key
If you're unable to find a spare key from the dealership when you purchase your Mazda 3 or accidentally break your current one Don't fret, there is still an option to make another key. You'll need an flat-head screwdriver and an CR2025 battery. Once you've got the tools then it's time to open the key fob. Find the key release auxiliary. The button is located on the bottom of the metal part. It's easy to locate. Once you press the button, the cover should be removed immediately. Then, you can insert the head of the screwdriver into the notch or spacing at the top of the metal component and pull it away.
Once the auxiliary key is removed, insert the new or spare key into the slot. Set the ignition to ON, and wait for about five seconds before turning it to OFF. This will allow the system to recognize the new key and begin your vehicle in the future.
You can only program three keys in your Mazda 3. The final thing you want is to have more than two working key fobs but not be in a position to get your vehicle started. This is a safeguard to stop anyone who is not authorized from activating your key fobs and starting your car.
How to Reprogram a Spare Key
It's a smart idea to know how you can reprogram a spare key in the event that your original key is lost or stolen. This will keep unauthorised persons from starting your car or taking it. This procedure should work with any Mazda however, you'll require two keys that work to begin the reprogramming process. If you don't have two working keys, you'll have to bring your car to the dealer to get it done.
Begin by stepping into your driver's seat and close the door, except for the one that's opened. Place the working key in the slot, and then turn the ignition to the ON position. After five seconds, take the key out and repeat with the second key.
Once you've completed programming your new key you should have 3 keys that allow you to start your vehicle in the future. Test each key to be sure that they're functioning properly before placing them away.
It's a good idea to buy a spare Mazda 3 key fob, especially if your car is one who is prone to losing keys or has other issues with it. You can purchase one online or at a local automotive store, but make sure to read reviews before purchasing so that you can avoid purchasing a key fob that's not compatible with your car.
How to Change the Battery on a Spare Key
It's a nightmare to discover that the key fob you used to use has gone out, and you are not able to unlock your car. It's easy to replace the battery yourself and save money at the dealership.
The first step is to press the auxiliary key button on the back of the key fob. This will remove the metal key auxiliary to reveal an opening on both sides of the case. Put the flathead into one of these slots and then gently pull the two halves of the case apart. When the battery is completely exposed, remove it and set aside the case somewhere that you won't forget about it.
Be sure to have an additional battery prior to beginning. They can be bought at any store that sells batteries or from a Mazda dealer in Winter Garden. Using the right type of battery will ensure that your key fob operates perfectly.
Replace the battery cap and then insert the new battery. Be careful not to damage the small rubber ring the battery is placed on. The two halves should be pressed together until you can hear the click.
How to Reset the system's 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 lose your key or had it stolen the car will not start even if you've got the spare fob. The key fob has to be reprogrammed by the dealer to make it work again. It's a difficult and costly experience. So, it's best to learn how to reset the system.
Remove the battery from the system for 15 minutes. This will erase any residual electrical current from the computer on board. Next, disconnect mazda lost car key LF-ECU and demand switch connectors. Verify that the connections are in good order between the terminals.
Place the key in the slot, and turn on the ignition. The key should remain in the ignition for about five seconds, then turn it off. The key's details are now transferred to the computer of your vehicle and the new fob can start your vehicle. You can program any number of fobs you want however only one should be utilized at any specific time. This will stop unauthorised people from copying your key and gaining access to your car. You can purchase a replacement keyfob from the internet, however it must be programmed and cut by an authorized dealer.