Mazda 3 Key Fob Replacement

Mazda 3 owners may need to change the battery in their keyfob at times. You can easily perform this task yourself.

To change the battery, locate the small button on the back of the key fob. Press it and then take off the cover.

Lost Keys

Losing your car keys was an inconvenience that was minor. You could replace keys at any hardware store, locksmith store, or Mazda replacement keys dealer, and it was fairly cheap to do so. Your car's high tech key fob can do more than simply lock and unlock the car. But that added convenience comes with a price - more expensive replacements.

The key fob features a security chip built into it that sends a unique code to the car's computer to let you unlock and start the engine. The key fob is also capable of controlling some other functions, such as opening and closing the windows when you're in a hot spot and calling your car to you for easier reverse maneuvers into an awkward spot (a feature available on some Genesis GV60 and Hyundai Sonata sedans).

Mazda's remote controls aren't nearly the price of other car makers'. You can even replace the key fob battery yourself, with a knowledge. You'll need a flathead screwdriver and an updated CR2025 to complete this. Make sure you utilize the directional buttons and red button to lock and unlock the doors before changing the battery.

If you want to save money on an Mazda 3 key fob replacement find one on eBay that is OEM and does not require programming by a dealer or locksmith. You can find a wide selection on eBay but they might not have the exact design or color that your current key fob.

Lockouts

A driver being locked out of their vehicle is among the worst scenarios that could occur. There are a few tricks drivers can use to gain access into their vehicle. You should first contact their local Mazda dealership or locksmith. This is a viable option as it's likely be less expensive and faster than calling a tow truck. A locksmith or dealer needs to buy a keycode from the database to create a new fob. It will cost around $100. It is important to keep this code safe.

Another thing that drivers can do when stuck outside their car is to examine the underside of the key fob for an auxiliary button. There is typically small, round button that can be placed and held. This will open the doors of the vehicle and permit the owner to open them by hand.

The emergency override function is another method to gain access an automobile that is locked. This will allow the key fob to override the functions suspended by the theft-deterrent system. This will usually activate the hazards warning lights and make a to confirm that the doors, fuel-filler lid or liftgate have been shut.

Transponder Chips

If the key fob you have has a transponder chip built into the head of the L-shaped key, you'll need to go to a locksmith or dealer in order to get it replaced. The chips have an identification code that can be used to start your vehicle.

The antenna ring releases a burst of radio frequency energy when you insert your metal key and turn it on. The energy reaches the chip transponder in the key. The chip responds with a code that's sent to the antenna ring telling the car that it's a valid key.

Most Mazdas come with a transponder chip with a code that is changing each time you turn it. This means that the key you're using will not work with your car until you have a duplicate using the same code in the ignition cylinder.

It's not that difficult to make your own replacement keys. If you can locate an operational key, put it inside your mazda replacement keys and turn the ignition to ON. You can copy the information from the key to the second key in case it starts your Mazda. If you need to, you can also make use of the eraser on your key fob to erase the code. This method is not guaranteed to be effective, as some transponder chips can fail to function properly.

Programming

The loss of your car keys can be costly and time-consuming. Mazda has made adding and programming the third car key simple. You can do this with a few simple steps, and you don't need to pay the dealer for the service. If you have a spare car key, this is the best way to avoid having to pay for towing or dealership charges.

It is necessary to purchase an extra battery for your key fob. You can purchase one from a hardware store or large box retailers for mazda replacement Keys around $10. To open the fob, you'll need a flathead screwscrew. The screwdriver's head should fit into tiny slots on the back of your fob. After taking the case off, replace the battery that was in it.

Now it's time to program the new key fob into your vehicle. To do this, insert the working key into the ignition, and then turn it ON. It should be on for about five seconds and then switch it off. Repeat the process with a second working key, and then your new (or spare) key. After this is done the new key should be able to start your mazda replacement keys. If not, it might be a problem with the key fob.