Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your SILENCER SLRF412 2-Button Keyfob Remote. This is an OEM replacement part designed for user programming. Proper programming is essential for the remote's functionality with your vehicle's control module.
Product Overview

Figure 1: Front View of Keyfob Remote
This image displays the front of the SILENCER SLRF412 keyfob remote. It features two distinct buttons: an asterisk (*) button at the top and an unlock (padlock) button below it. The SILENCER brand logo is visible along the left side.

Figure 2: Back View of Keyfob Remote
This image shows the back of the SILENCER SLRF412 keyfob remote. Clearly visible are the engraved part number "P/N: SL-RF412" and the FCC ID "FCC ID: H5OT25". This information is crucial for identification and compliance.
Setup and Programming
The SILENCER SLRF412 keyfob remote is user-programmable. The control module in your vehicle must be programmed to accept this replacement part. Detailed DIY instructions are included with the part. Please follow them carefully.
Important Prerequisites:
- Working Valet Button or Switch: Programming requires that your vehicle's alarm system has a functional valet button or switch. This is essential for entering programming mode.
- Working Siren (Recommended): While not strictly essential, a working siren on your alarm system is very helpful during the programming process as it often provides audible feedback for successful steps.
Refer to the specific programming instructions provided with your remote for the exact steps. Typically, this involves entering a programming mode in your vehicle's alarm system using the valet button, then pressing buttons on the new remote to link it.
Operating Instructions
Once successfully programmed, your SILENCER SLRF412 keyfob remote will control your vehicle's alarm and keyless entry system. The remote features two primary buttons:
- Asterisk (*) Button: This button typically controls the arming/disarming functions of your alarm system. Pressing it once usually arms the system, and pressing it again (or a specific sequence) disarms it. Refer to your vehicle's alarm system manual for exact functionality.
- Unlock (Padlock) Button: This button is generally used for unlocking your vehicle's doors. A single press typically unlocks all doors.
Note: The exact functions of these buttons may vary slightly depending on the specific alarm system installed in your vehicle. Always consult your vehicle's alarm system manual for comprehensive operational details.
Maintenance
Battery Replacement:
The SILENCER SLRF412 keyfob remote requires 1 Lithium Metal battery (included). When the remote's range decreases or it becomes unresponsive, it may be time to replace the battery.
- Carefully open the remote casing. This may require a small flat-head screwdriver or a prying tool.
- Note the orientation of the existing battery before removing it.
- Insert the new Lithium Metal battery, ensuring correct polarity.
- Close the remote casing securely.
Dispose of old batteries responsibly according to local regulations.
Troubleshooting
- Remote Not Responding After Programming:
- Ensure the battery is correctly installed and has sufficient charge.
- Re-attempt the programming procedure carefully, ensuring all steps are followed precisely.
- Verify that your vehicle's valet button/switch is functioning correctly.
- Confirm that the remote is compatible with your specific vehicle alarm system model.
- Reduced Range:
- Replace the battery with a new one.
- Ensure there are no significant obstructions between the remote and the vehicle.
- Buttons Not Functioning:
- Check for physical damage to the buttons or casing.
- If the remote was recently opened, ensure all internal components are seated correctly.
Specifications
| Model Number | SLRF412 |
| FCC ID | H5OT25 |
| Brand | SILENCER (Manufactured by MAGNADYNE) |
| Product Dimensions | 3.5 x 1.5 x 0.5 inches |
| Item Weight | 4 ounces |
| Batteries | 1 Lithium Metal battery (included) |
| Number of Buttons | 2 (Asterisk, Unlock) |
| Connectivity Technology | Radio Frequency |
| Compatible Devices | Vehicle Alarm/Keyless Entry Systems |
| Special Feature | Ergonomic Design |
Warranty and Support
Information regarding specific warranty terms or direct manufacturer support for the SILENCER SLRF412 keyfob remote was not available in the provided product data. For warranty claims or technical support, please refer to the documentation that came with your original vehicle alarm system or contact the vendor from whom you purchased this replacement remote.
This product is an OEM remote, not an aftermarket replacement, and is intended to function as a direct replacement for the original part number SLRF412.





