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Dorman 99424ST Keyless Entry Transmitter
Keyless Entry Remote for GMC Terrain
This Dorman keyless entry transmitter is a direct-style replacement for the original key fob on select GMC Terrain models. It matches the appearance and function of the factory remote and is built for vehicles that require scan-tool programming by a qualified professional.
- OE-style key fob replacement for select GMC Terrain applications
- Black housing with 5-button layout
- Includes remote start function
- Uses electronic chip type 46 Philips Hitag 2
- Requires programming with a compatible scan tool
- Designed to match OE FCC ID HYQ1AA
- Part number 99424ST for ordering and cross-reference
Detailed Product Information
Dorman 99424ST is a premium-grade keyless entry transmitter made to mirror the original remote used on 2018-2020 GMC Terrain models with OE FCC ID HYQ1AA. It is a practical choice when replacing a damaged, lost, or nonresponsive key fob, or when adding a spare transmitter for the same vehicle application. The compact black remote measures 4.625 inches long, 2.875 inches wide, and 2.125 inches high, and it includes the battery.
This part cross-references GM 1067.5 SMARTKEY and 13584502 for the same application. For search relevance, this Dorman 99424ST key fob is a direct replacement option for 2018-2020 GMC Terrain remote entry systems that use the HYQ1AA FCC ID.
Common Problems This Remote Can Address
- Lost or damaged original key fob
- Buttons that no longer respond reliably
- Need for a spare remote for daily use
- Remote start or lock/unlock functions not operating from the transmitter
- Replacement after battery-related remote failure
Installation Notes and Tips
Programming is required, and setup must be completed with a compatible scan tool. Professional installation is recommended because the remote must be paired to the vehicle before it will operate. Confirm the vehicle’s OE FCC ID and application details before ordering, and verify that the replacement remote matches the original system used on your GMC Terrain.
Quality Assurance
This Dorman keyless entry transmitter is built as a premium replacement part for the specified vehicle application and is intended to match the original remote’s appearance and function. It is designed for proper pairing to supported vehicles when programmed correctly.
| Brand | Dorman |
|---|---|
| Part Number | 99424ST |
| 10878 | No |
| 10878 | Non |
| 10880 | Emergencia |
| 10880 | Emergency |
| 10881 | Key fob |
| 10881 | Llavero a control remoto |
| 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 | 5 |
| Grade Type | Premium |
| Electronic Chip Type | 46 philips hitag 2 |
| Contenidos del paquete | 1 llavero |
| Contenidos del paquete | Advertencia fcc/ic |
| OE FCC ID | Hyq1aa |
| Package Contents | 1 key fob |
| Package Contents | Fcc/ic warning |
| Remote Start | Oui |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2020 | GMC | Terrain | N/A | OE FCC ID: HYQ1AA |
| 2019 | GMC | Terrain | N/A | OE FCC ID: HYQ1AA |
| 2018 | GMC | Terrain | N/A | OE FCC ID: HYQ1AA |
* 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.