How does the transmitter inside a car key operate and How to replace its battery on 2014 Mazda MX-5 Miata?

When the UNLOCK button is pressed the driver door is unlocked, a second press opens both doors. The lock button switches on the alarm and locks the two doors. A battery that is weak will require more closeness and it will cease to work, ultimately. In order to replace, disassemble the car key, open the key and fit a fresh battery.

Genuine 2014 Mazda MX-5 Miata Car Key

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2014 Mazda MX-5 Miata 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
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: BBM4-67-5RY
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following 2014 Mazda MX-5 Miata Submodels:
- 25th Anniversary Edition, Club, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
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2014 Mazda MX-5 Miata Transmitter Part Number: NHY3-67-5RYA
$188.13 MSRP: $250.88
You Save: $62.75 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Replaces: NHY3-67-5RY
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: NHY3-67-5RYA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
More Info
Fits the following 2014 Mazda MX-5 Miata Submodels:
- 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
View related parts
2014 Mazda MX-5 Miata Transmitter Part Number: NHY8-67-5RYA
$338.59 MSRP: $451.54
You Save: $112.95 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmitter Set, Keyless
- Replaces: NHY8-67-5RY
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: NHY8-67-5RYA
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
More Info
Fits the following 2014 Mazda MX-5 Miata Submodels:
- 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS

2014 Mazda MX-5 Miata Car Key Parts and Q&A

Q: How does the transmitter inside a car key operate and How to replace its battery on 2014 Mazda MX-5 Miata?
A: When the UNLOCK button is pressed the driver door is unlocked, a second press opens both doors. The lock button switches on the alarm and locks the two doors. A battery that is weak will require more closeness and it will cease to work, ultimately. In order to replace, disassemble the car key, open the key and fit a fresh battery.