How to replace the battery and program the transmitter for your car key fob on Mazda 3?

Replacement of the battery, only do it when the Key Fob cannot use the locks at ten feet distance because the normal range of the Key Fob is approximately 30 feet, both key fob and retractable key fob. With a coin, be careful to divide the halves of the case, change the battery and reconnect the half of the case. To program the Key Fob, make sure all the doors are closed and the liftgate is closed and then open the door of the driver. This next step involves pressing the key into the ignition lock by inserting it and twisting it three times to the ON position and then to the LOCK position without taking the key out. Open and close driver door thrice with door open after that. Take out the key and press any button on the Key Fob and complete the process of synchronization, it should take not more than 24 seconds, in case the locking system does not respond, wait 40 seconds after which the process should be repeated.

Genuine Mazda 3 Key Fob

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Mazda 3 Transmitter Part Number: GJY9-67-5DY
$218.91 MSRP: $291.95
You Save: $73.04 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Transmitter, Keyless Entry
- Replaces: GJR9-67-5RY, GJR9-67-5DY
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, I Sport, I Touring, Sport, Touring, i Grand Touring, i SV, s Grand Touring, s Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: BCYN-67-5DYB
$162.06 MSRP: $216.12
You Save: $54.06 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Transmitter, Keyless Entry
- Replaces: BCYN-67-5DY, BCYN-67-5DYA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2025 Mazda 3 | 2.5 Carbon Turbo, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: BBM4-67-5RY
$176.13 MSRP: $234.88
You Save: $58.75 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Transmitter Set, Keyless
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2013 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: BN8P-67-5RY
$112.38 MSRP: $149.86
You Save: $37.48 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Transmitter Set, Keyless
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2004-2006 Mazda 3 | S, SP23, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda 3 Transmitter Part Number: BCR2-67-5RY
$170.85 MSRP: $227.84
You Save: $56.99 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2013 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: BAN6-67-5RY
$189.24 MSRP: $252.37
You Save: $63.13 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: TRANSMITTER (3 BUTTON)
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2009 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda 3 Transmitter Part Number: KDY3-67-5DY
$150.91 MSRP: $201.26
You Save: $50.35 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter, Keyless Entry
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2014-2018 Mazda 3 | Grand Touring, I Sport, I Touring, Sport, Touring, i Grand Touring, s Grand Touring, s Touring | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Transmitter Part Number: BCYA-67-5DYB
$162.06 MSRP: $216.12
You Save: $54.06 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter, Keyless Entry
- Replaces: BCYA-67-5DYA, BCYA-67-5DY
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2025 Mazda 3 | 2.0, 2.5 Carbon Turbo, 2.5 S, 2.5 Turbo, 2.5 Turbo Premium Plus, Base, Carbon Edition, Preferred, Premium, Select, Select Sport | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: BCY1-67-5RY
$177.59 MSRP: $236.84
You Save: $59.25 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2013 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
View related parts
Mazda 3 Transmitter Part Number: BBY2-67-5RY
$179.83 MSRP: $239.82
You Save: $59.99 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2013 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L GAS
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Mazda 3 Transmitter Part Number: GP9C-67-5RYB
$190.24 MSRP: $253.69
You Save: $63.45 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Replaces: BAN8-67-5RY, GP9C-67-5RY, GP9C-67-5RYA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2007-2009 Mazda 3 | Mazdaspeed, S, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda 3 Transmitter Part Number: BAP5-67-5RY
$198.59 MSRP: $264.83
You Save: $66.24 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: TRANSMITTER (4 BUTTON)
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2008-2009 Mazda 3 | Mazdaspeed, S | 4 Cyl 2.3 L GAS

Mazda 3 Key Fob

The Mazda 3 Key Fob has a button that enables the driver to lock or unlock the car and trigger other functions without a key. The Key Fob unit contains the following components: a radio transmitter with a short range and a microchip that sends a signal when a button is pressed. The coded signal sent by the button is decoded by the receiver, which carries out the command selected. The electronics of these devices use a rolling code that generates a unique encrypted sequence each time a vehicle's doors are opened. It generates billions of different codes, making it highly unlikely to duplicate the transmission signal. A standard version comes in a small black box. The 3 buttons on it lock, unlock, or sound your horn or alarm. All configurations have this. Some configurations have an alternate 5-button version. That version gets separate trunk and remote engine start buttons. Both configurations operate within a fifteen to sixty foot range, though the actual range may change due to interference or vehicle programming. The Mazda Key Fob contains an internal battery that must be operational, and it must be programmed correctly to communicate with your vehicle. If the battery is dead, the casing is damaged, or the fob is unsynchronized, the transmitter will not be able to activate the receiver. Replacing the Key Fob battery routinely after 3 to 4 years of use can help it deliver a good signal. Each Mazda production model recognizes just its personal encrypted code, so another fob sitting in a nearby parking lot will not accidentally unlock a Mazda or disrupt system operations. Re-pairing is easier if one fails, so owners usually carry two programmed units.

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Mazda 3 Key Fob Parts and Q&A

Transmitter
BCY1-67-5RY
Q:
How to replace the battery and program the transmitter for your car key fob on Mazda 3?
A:
Replacement of the battery, only do it when the Key Fob cannot use the locks at ten feet distance because the normal range of the Key Fob is approximately 30 feet, both key fob and retractable key fob. With a coin, be careful to divide the halves of the case, change the battery and reconnect the half of the case. To program the Key Fob, make sure all the doors are closed and the liftgate is closed and then open the door of the driver. This next step involves pressing the key into the ignition lock by inserting it and twisting it three times to the ON position and then to the LOCK position without taking the key out. Open and close driver door thrice with door open after that. Take out the key and press any button on the Key Fob and complete the process of synchronization, it should take not more than 24 seconds, in case the locking system does not respond, wait 40 seconds after which the process should be repeated.