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Dorman 99678ST Keyless Entry Transmitter
OE-Style Keyless Entry Remote for Toyota Yaris
The Dorman 99678ST keyless entry transmitter is a direct-style replacement for the original Toyota key fob on select 2015-2019 Toyota Yaris models. It matches the appearance and function of the factory remote and requires programming with a compatible scan tool by a qualified professional.
- OE-style replacement keyless entry transmitter for select Toyota Yaris vehicles
- Black housing with integrated key design
- 3-button remote layout
- Electronic chip type: H-Chip (75 TEXAS AES)
- OE FCC ID: HYQ12BBY
- Batteries included
- Premium grade construction
Product Details
Built for drivers needing a replacement or spare remote, this Dorman key fob is shaped to closely match the original transmitter used on 2015-2019 Toyota Yaris models. The Dorman 99678ST is designed around the factory-style integrated key layout and is a practical choice when the original remote is worn, damaged, or no longer functioning properly. Fits 2015-2019 Toyota Yaris, N/A. This part cross-references Toyota OE application 8907052G50 for the same application.
Common Problems It Can Help Solve
- Broken or cracked keyless entry remote housing
- Unresponsive lock, unlock, or panic buttons
- Lost or misplaced original Toyota Yaris key fob
- Need for a spare remote for a 2015-2019 Toyota Yaris
- Remote not pairing correctly after replacement of the original transmitter
Installation Notes and Tips
Programming is required and must be completed with a compatible scan tool to pair the transmitter to the vehicle. Professional setup is recommended to ensure proper communication with the vehicle’s anti-theft and keyless entry system. Verify OE FCC ID HYQ12BBY and vehicle application before programming. Fits 2015-2019 Toyota Yaris, N/A.
Quality Assurance
Dorman manufactures this transmitter as a premium replacement part intended to match the original remote’s appearance and function for the listed Toyota Yaris applications. The included H-Chip electronic design supports the specified vehicle pairing requirements when programmed correctly.
| Brand | Dorman |
| Part Number | 99678ST |
| 10878 | Oui |
| 10878 | Sí |
| 10878 | Yes |
| 10880 | Integrado |
| 10880 | Integrated |
| 10881 | Cuña integral |
| 10881 | Integrated key |
| Length | 4.625 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Remote Type | Oui |
| Remote Type | Sí |
| Remote Type | Yes |
| Batteries Included | Oui |
| Batteries Included | Sí |
| Batteries Included | Yes |
| Programming Required | Oui |
| Programming Required | Sí |
| Programming Required | Yes |
| Width | 2.875 |
| Height | 2.125 |
| Button Quantity | 3 |
| Grade Type | Premium |
| Electronic Chip Type | H-chip (75 texas aes) |
| Contenidos del paquete | 1 llavero |
| Contenidos del paquete | Advertencia fcc/ic |
| OE FCC ID | Hyq12bby |
| Package Contents | 1 key fob |
| Package Contents | Fcc/ic warning |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2019 | Toyota | Yaris | Hatchback | N/A | OE FCC ID: HYQ12BBY |
| 2018 | Toyota | Yaris | Hatchback | N/A | OE FCC ID: HYQ12BBY |
| 2017 | Toyota | Yaris | Hatchback | N/A | OE FCC ID: HYQ12BBY |
| 2016 | Toyota | Yaris | Hatchback | N/A | OE FCC ID: HYQ12BBY |
| 2015 | Toyota | Yaris | Hatchback | N/A | OE FCC ID: HYQ12BBY |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.