1. Product Overview
The LiftMaster 891LM single-button remote control is designed for convenient operation of compatible garage door openers and gate operators. This remote provides a straightforward method to wirelessly open and close your access points. Its user-friendly design features a single button for operation and incorporates advanced security technology.

Figure 1: LiftMaster 891LM 1-Button Remote Control
Key Features:
- Single-Button Operation: Simplifies control for garage door openers and gate operators.
- Security+ 2.0 Rolling Code Technology: Enhances security by reducing radio wave interference and preventing signal theft.
- Visor Clip Included: Allows for easy attachment to a vehicle's visor for convenient access.
- Long-Lasting Battery: Operates with a 3V lithium battery, offering an average life of 5 years.
2. Compatibility
This LiftMaster 891LM remote control is exclusively compatible with newer Security+ 2.0 LiftMaster garage door openers or gate operators. To ensure compatibility, verify that your opener or operator features a yellow round learn button and a yellow antenna.

Figure 2: Visual guide for compatible Security+ 2.0 systems.
3. Setup and Programming
Programming the LiftMaster 891LM remote control is a simple process. Follow these steps to link your remote with your compatible garage door opener or gate operator:
- Locate the Learn Button: On your garage door opener or gate operator, find the yellow round learn button. This button is typically located on the motor unit.
- Activate Learn Mode: Press and immediately release the yellow learn button on your opener. The LED indicator on the opener will illuminate steadily, indicating it is in learn mode. You have approximately 30 seconds to complete the next step.
- Program the Remote: While the opener's LED is lit, press and hold the button on your 891LM remote control that you wish to program.
- Confirm Programming: Continue holding the remote button until the opener's light flashes or you hear two clicks. This signifies successful programming.
- Test Operation: Release the remote button. Press the programmed button on your remote control to test the operation of your garage door or gate.
If the remote does not operate the opener after programming, repeat the steps. Ensure you are within range of the opener during programming.
4. Operation
Once programmed, operating your LiftMaster 891LM remote control is straightforward:
- Opening/Closing: Press the programmed button on the remote control once to open or close your garage door or gate.
- Stopping Movement: Press the button again while the door/gate is in motion to stop it.
- Visor Clip: Utilize the included visor clip to secure the remote within your vehicle for easy access.

Figure 3: The 891LM remote control for simple operation.
5. Battery Information
The LiftMaster 891LM remote control is powered by a 3V lithium battery. This battery is pre-installed at the time of purchase.
- Battery Type: 1 CR2032 (or similar 3V lithium) battery.
- Average Battery Life: Approximately 5 years, attributed to its low 3V voltage.
- Replacement: When the remote's performance diminishes, replace the battery with a new 3V lithium cell. Refer to the remote's internal compartment for specific battery type and replacement instructions.
6. Security Features
The 891LM remote control incorporates advanced security measures to protect your property:
- Security+ 2.0 Rolling Code Technology: This system generates a new code with every press of the remote button. This dynamic code change makes it virtually impossible for unauthorized individuals to intercept and duplicate your remote control signal, significantly enhancing the security of your garage or gate.
- Reduced Interference: The Security+ 2.0 technology also minimizes radio wave interference, ensuring reliable operation of your remote control.

Figure 4: Security+ 2.0 ensures a secure code with every click.

Figure 5: Rolling Code Technology prevents radio wave interference.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 891LM |
| Brand | LiftMaster |
| Compatibility | Security+ 2.0 LiftMaster garage door openers/gate operators with yellow learn button and yellow antenna |
| Number of Buttons | 1 |
| Security Technology | Security+ 2.0 Rolling Code |
| Battery Type | 3V Lithium (CR2032 or equivalent) |
| Average Battery Life | 5 years |
| Dimensions | 6 x 5 x 3 inches |
| Item Weight | 0.96 ounces |
| Color | Black |
| Special Feature | Ergonomic design, Visor Clip included |
8. Troubleshooting
- Remote Not Working After Programming:
- Ensure your garage door opener or gate operator is a Security+ 2.0 model with a yellow learn button and yellow antenna.
- Repeat the programming steps carefully, ensuring you press and immediately release the learn button on the opener, then press and hold the remote button until the opener's light flashes or clicks.
- Check the remote's battery. Although designed for long life, a weak battery can affect signal strength.
- Reduced Range:
- Replace the remote's battery.
- Ensure there are no obstructions between the remote and the opener's antenna.
- Check the opener's antenna for damage or obstruction.
- Interference Issues:
- While Security+ 2.0 is designed to reduce interference, strong local radio signals or certain LED light bulbs (as mentioned in a customer review) can sometimes cause issues. Try temporarily removing potential sources of interference to diagnose.
9. Warranty and Support
For specific warranty information, please refer to the documentation included with your LiftMaster 891LM remote control or visit the official LiftMaster website. LiftMaster is committed to providing reliable products and customer support.
For further assistance, technical support, or to inquire about replacement parts, please contact LiftMaster customer service through their official channels.
LiftMaster is trusted by millions of homes and businesses, designing and delivering safe, smart door and gate solutions.





