1. Introduction
This manual provides detailed instructions for the proper use, setup, and maintenance of your Avital 474L Remote Control Transmitter. Please read this manual thoroughly before attempting to use the device to ensure correct operation and to prevent damage.
2. Product Overview
The Avital 474L is a replacement remote control transmitter designed for use with compatible Avital car alarm and remote start systems. It features a durable design and intuitive button layout for easy control of your vehicle's security functions.

Figure 1: Avital 474L Remote Control Transmitter. This image displays the black, oval-shaped remote with five teal-colored buttons. From top to bottom, there is a small green LED, then a row with a lock button (left) and an unlock button (right). Below these is a large star button in the center. Below the star button is a trunk release button. A metal key ring is attached at the bottom.
Key Features:
- Lock Button: Secures the vehicle and arms the alarm system.
- Unlock Button: Unlocks the vehicle and disarms the alarm system.
- Star Button (*): Typically used for remote engine start or other programmable auxiliary functions.
- Trunk Release Button: Opens the vehicle's trunk or activates another auxiliary output.
- LED Indicator: Provides visual feedback on button presses and system status.
3. Setup
3.1. Battery Installation
The Avital 474L remote requires one Lithium Metal battery. Ensure the battery is correctly oriented according to the polarity markings inside the battery compartment.
- Carefully open the remote casing, usually by prying along the seam with a small, flat tool.
- Remove the old battery, if present.
- Insert the new Lithium Metal battery, observing the correct positive (+) and negative (-) terminals.
- Close the remote casing securely until it clicks into place.
3.2. Programming the Remote
Programming the Avital 474L remote control transmitter to your vehicle's security system typically requires specific steps that vary by vehicle model and the installed Avital system. Refer to your vehicle's owner's manual or the installation guide for your Avital security system for precise programming instructions. Generally, the process involves:
- Locating the system's programming button (often a 'Valet' button).
- Turning the ignition key to a specific position (e.g., ON or ACC).
- Pressing and holding the programming button.
- Pressing a button on the new remote.
- Releasing the programming button.
If you encounter difficulties, it is recommended to consult with a professional installer or the Avital support resources.
4. Operating Instructions
Once programmed, the Avital 474L remote provides convenient control over your vehicle's security and remote start features.
Button Functions:
- Lock Button (Closed Padlock): Press once to lock the doors and arm the security system. The vehicle's lights may flash, and a chirp may sound to confirm.
- Unlock Button (Open Padlock): Press once to unlock the doors and disarm the security system. The vehicle's lights may flash twice, and two chirps may sound to confirm.
- Star Button (*): This button typically activates the remote engine start function. Press and hold for approximately 2-3 seconds to start the engine remotely. Consult your system's specific instructions for exact timing and additional functions.
- Trunk Release Button (Car with Open Trunk): Press and hold for approximately 2-3 seconds to release the trunk or activate a programmed auxiliary output.
- Panic Mode: To activate the panic alarm, press and hold the Lock or Unlock button (or sometimes both simultaneously, depending on the system) for several seconds. The vehicle's horn will sound, and lights will flash. Press any button again to turn off panic mode.
5. Maintenance
5.1. Battery Replacement
Replace the Lithium Metal battery when the remote's range decreases significantly or the LED indicator fails to light up during button presses. Follow the battery installation steps in Section 3.1.
5.2. Cleaning
To clean the remote, use a soft, dry cloth. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the casing or internal components.
6. Troubleshooting
If you experience issues with your Avital 474L remote, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Remote not responding | Weak or dead battery | Replace the battery (see Section 3.1). |
| Reduced operating range | Weak battery; environmental interference | Replace battery. Avoid areas with strong radio interference. |
| Remote not programming | Incorrect programming steps; incompatible system | Review programming instructions for your specific Avital system. Ensure the remote is compatible. Contact a professional installer if issues persist. |
| LED indicator does not light up | Dead battery; internal fault | Replace battery. If still no light, the remote may be faulty. |
7. Specifications
- Brand: Avital
- Model Numbers: 2101L, 4103L, 5103L, 5303L
- Item Weight: Approximately 0.634 ounces
- Package Dimensions: Approximately 4.17 x 3.74 x 0.51 inches
- Batteries: 1 Lithium Metal battery required
- Connectivity Technology: Infrared (Note: While listed as Infrared, car remotes typically use Radio Frequency. Please verify with your system's documentation.)
- Compatible Devices: Home Theater (Note: This specification appears to be a general category and may not accurately reflect the primary use with car security systems.)
8. Warranty and Support
For information regarding warranty coverage, please refer to the documentation provided with your original Avital security system or contact Avital customer support directly. Keep your purchase receipt as proof of purchase.
For technical assistance or further inquiries, please visit the official Avital website or contact their customer service department. Ensure you have your product model number and any relevant system information ready when seeking support.





