Associated model number: 374LM

The 374 315MHz remote control can activate four separate 315MHz Security+ residential or commercial garage door openers and or gate openers. The instructions for programming garage door openers are listed below. Please refer to the original receiver programming for commercial and gate operators.

All four push buttons work with 315 MHz Security+ receivers having a purple "learn" button. The rolling code between these channels and the receiver changes with each use, randomly accessing over 100 billion new codes.

As an added feature, the 4th button is capable of learning or being trained to duplicate or match another CGI manufactured 315MHz fixed code remote. This feature is normally used when several remotes are required to operate on fixed code devise such as a gate operator or commercial dock door. In this case, the code transmitter to the receiver remains constant or fixed, not using the Security+ format.

************* WARNING *************

Moving Door can cause serious injury or death.

  • DO NOT install transmitter unless the door operator's safety reverse works as required by the door operator's manual.
  • Wall control must be mounted in sight of door, at least 5 feet above floor and clear of moving door parts.
  • Keep people clear of opening while door is moving.
  • DO NOT allow children to play with the transmitter or door operator.
  • If safety reverse does not work properly:
    • Close door then disconnect operator using the manual release handle.
    • DO NOT use transmitter or door operator.
    • Refer to Door and Door Operators Owner's Manuals before attempting any repairs.
  • Electrical Shock can cause serious injury or death.
  • Power cord must be unplugged before attaching any wires.
  • Be sure wire ends do not touch each other or other terminals.
  • If you have questions or if you need a manual, contact the distributor or manufacturer of the operator.

Instructions are described below (when using with Security+ garage door openers):

  1. Press and release the "learn" button on the motor unit. This can be found where you see the antenna wire hanging from the motor head (you may have to take the lens cover off). If antenna wire is not hanging from motor head then you have an external receiver which is a black box approx. 6" x 2" mounted somewhere in the garage with a antenna wire hanging from it (pop off cover to find Learn Code Button). The learn indicator light will glow steadily for 30 seconds.
  2. Within 30 seconds, press and hold the button on the hand held remote that you wish to operate your garage door.
  3. Release the button when the motor unit light blinks. It has learned the code. If light bulbs are not installed, two clicks will be heard.
  4. Now the opener will operate when that push button is pressed.

To Erase All Codes From Motor Unit Memo:

  • To deactivate any unwanted remote, first erase all codes - Press and hold the "learn" button on motor unit until the learn indicator light goes out (approximately 6 seconds). All previous codes are now erased.
  • Reprogram each remote or keyless entry you wish to use.

When Several Remotes operate one device (To match the 374LM to another CGI manufactured remote's code (Remote Control X)):

  1. Begin by having both the 374LM and Remote Control X available.
  2. With the 374LM button side up, press and hold both 1st and 4th push buttons until the yellow indicator light begins to blink. Visible at the bottom through a small hole begins to blink. It will blink for 30 seconds; during this time it is in "learn" mode. and the buttons can be released.
  3. While it is in learn mode, hold remote control X, another CGI fixed code transmitter back to back with the FCC labels touching.
  4. Press and hold the Remote Control X push button as you slowly slide the remotes across each other until the 374LM indicator light blinks very rapidly, indicating it has learned the code. (If Remote Control X is a 374 , you must press and hold its 4th push button).
  5. The 4th button is now sending the same identical coded signal as Remote Control X. This code will remain inside the 374LM until replaced with another new code by repeating steps 1-4 above, or by resetting to Security+
  6. Now the device will operate when the 4th push button is pressed.
  7. This code will remain inside the remote control until replaced with a new code by repeating the above steps.

Resetting the 4th push button back to Security+ as follows - Push and hold the 1st and 4th buttons while observing the small yellow indicator light. Hold both button for 10 seconds until the yellow indicator light stops blinking. The remote has defaulted to one of six randomly preprogrammed Security+ settings.

The Remote Control Batteries:

The Lithium batteries should produce power for up to 5 years. To replace, pry open case with visor clip or screwdriver. Insert batteries positive side up (+). Dispose of old batteries properly.



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We invite your inquiries regarding your garage door opener.

  • For technical and compatibility issues, we must know the brand and model of your opener to help
  • Be sure to include your complete and accurate email address with your inquiry
Name A value is required.
Email Address (accurate) A value is required.Invalid format.
Phone No.
Brand of Opener
Model Number of Opener
(located on motor head behind light bulb cover)
Model Number of Remote Control
(located on back of remote)
Model/Part Number of Current Receiver
(located on Receiver)
Enter Security Code

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garage-door-opener-parts.com - Owned by 1st Garage Door Openers, Inc., an independent family owned and operated business serving the Garage Door and Garage Door Opener Industry since 1981. Providing excellent customer service and assistance for over 25 years. We are a discount reseller of garage door opener remotes, repair parts, keyless entry and gate operator controls for your home, business, or gated community. We carry parts for the following garage door openers: Lift-Master, Chamberlain, Sears Craftsman, Access Master, Sears Best Craftsman, Sears Automatic Door Opener, Master Mechanic, Security +, Formula 1, Garage Master, Billion Code, LiftMaster Professional, Estate Series, Premium Series, Contractor Series, Power Driver, Whisper Drive, Genie, Alliance, Norelco, Blue-Max, Lift-A-Door, Pro Max, Hercules, Stealth, Excelerator, Intellicode, Genie Pro, OverDrive, Python 2, Signature, Phantom, Legacy, Medallion, CodeDodger, Overhead Door, Genie Shop Vac, Stanley, Vemco, Quiet Glide, SecureCode, Lightmaker, Innovative Products, Whistler, U-Install, Popular Mechanics, Allister, Allstar, Pulsar, MVP, Challenger, GTO, All-O-Matic, Electrolift, Westinghouse, AM/11, Linear, Access Pro, Moore-O-Matic, MegaCode, Delta 3, MultiCode, Heddolf, ESP Micom, Intercontinental Dynamics, Crusader, Wayne Dalton, iDrive, Door Master, Quantum, Classic Drive, Tec Key, Martec, Monarch, Telectron and other garage door openers, and gate operators. Brand names of Garage Door openers are registered trade names of the respective entities and are only used for reference.