Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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I live in a 4-unit condo building constructed in 2008. Recently, after I trained/programed a garage door opener incorporated in a new car I purchased, I discovered that my garage door started to be controled by the remote control of a neighboring condo unit. My remote controls still operate my garage door opener, but they will not open my neighbor's garage door. His opener will operate both his garage door and my garage door at the same time. How do I retain control with my remotes but deny my neighbor the ability to control my garage door? Thanks, and Happy New Year.

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  • Master
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I would recommend this. I'm not sure this will work, but I think it will.
Try starting from scratch. Reprogram the unit to the car again, I think the codes change each time it is done. If not, it's not too difficult to try.

Posted on Jan 01, 2011

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My condo has a Chamberlin Elite Model sl 3000ul3. I have a 2015 Lexus & am having trouble programming the garage door opener with the car. Can you help?


go to manualsonline.com and find the garage door model's manual. read it along with your cars owners manual. make sure you are parked close/under the opener as you try to program for best results.

Nov 27, 2015 | Building Materials

1 Answer

How do you program the garage door buttons in a 2009 Porsche 911


The control is made by HomeLink. You can find instructions on how to program your specific type of garage door here:

http://www.homelink.com/program

Here are the basic steps for a "Genie" garage door opener:

  1. For first time training, press and hold the two outer HomeLink buttons, releasing only when the HomeLink indicator light begins to flash, which may take up to 20 seconds. (Do not perform this step when training the additional HomeLink buttons.)
  2. Press the appropriate HomeLink button I, II or III which you want to train and keep holding it until the indicator light starts flashing slowly. Once the indicator light starts flashing slowly, you may release the button. HomeLink is now in "training mode."You will now have 5 minutes to train your hand-held transmitter to the HomeLink transmitter in the bumper.
  3. Stand in front of your vehicle with the original hand-held transmitter for the garage door opener (or other device) that you wish to train.The transmitter unit to be trained is located in the bumper about 4 inches to the left of the vehicle's center.
  4. Hold the original hand-held transmitter between 0-12 inches from your car's bumper. NOTE: The distance between the hand-held transmitter and the HomeLink transmitter unit in the bumper depends on the system being trained. It may require several attempts at different distances in order to pick up the signal.
  5. Now press and hold the button on your original garage door transmitter while keeping your fog lights in view. The fog lights will blink three times to indicate that the training has been successful.NOTE: If the training time exceeds the five minutes, the fog lights blink once. If this happens, you should repeat steps 2 to 5.
  6. Press and hold the trained HomeLink button and observe the indicator light.
    • If the indicator light is solid/continuous, training is complete and your device should activate when the HomeLink button is pressed and released.
    • If the indicator light blinks rapidly for 2 seconds and then turns a solid/continuous light, proceed with Steps 7-9 for a rolling code device. A second person may make the following steps easier. Please use a ladder or other device; do not stand on your vehicle to perform the next steps.
  7. At the receiver (motorhead unit) in the garage, locate the "learn" or "smart" button (usually near where the hanging antenna wire is attached to the unit). If there is difficulty locating the training button, reference the garage door opener's manual.
  8. Press and release the "learn" or "smart" button (the name and color of the button may vary by manufacturer). NOTE: Once the button is pressed, you have approximately 30 seconds to initiate the next step.
  9. Return to the vehicle and firmly press and hold the trained HomeLink button for two seconds and release. Repeat the "press/hold/release" sequence up to 3 times to complete the training process.

Jan 14, 2013 | 2008 Porsche 911

1 Answer

I don't have the owner's manual for my 2002 GMC Yukon XL Denali. Do you know how to program the garage door opener?


I hope this helps.

Programming the HomeLink Transmitter
Do not use the HomeLink Transmitter with any garage
door opener that does not have the stop and reverse
feature. This includes any garage door opener model
manufactured before April 1, 1982.
Be sure that people and objects are clear of the garage
door you are programming.
It is recommended that a new battery be installed in
your hand-held transmitter for quicker and more
accurate transmission of the radio frequency.
Your vehicle's engine should be turned off while
programming the transmitter. Follow these steps to
program up to three channels:
1. Decide which one of the three channels (one of the
HomeLink buttons) you want to program.
2. Press and hold the desired button on HomeLink
through Step 3.
3. When the HomeLink indicator light begins to blink
slowly (this may take up to 30 seconds), hold the
hand-held transmitter about 1 to 3 inches (3 to 8 cm)
away from HomeLink and then press and hold the
transmit button on the hand-held transmitter.
Continue to hold both buttons until the indicator
light on HomeLink begins to flash rapidly (this may
take up to 90 seconds).
If you have trouble programming HomeLink, make
sure that you have followed the directions exactly as
described and that the battery in the hand-held
transmitter is not weak. If you still cannot program it,
move the hand-held transmitter to the left or right or
forward or backward or flip it upside down. HomeLink
may not work with older garage door openers that do
not meet current Federal Consumer Safety Standards.
If you cannot program the transmitter after repeated
attempts, refer to "Training a Garage Door Opener with
Rolling Codes" later in this section or contact the
manufacturer of HomeLink at 1-800-355-3515,
or on the internet at www.homelink.com.
Be sure to keep the original hand-held transmitter in
case you need to erase and reprogram HomeLink.


Training a Garage Door Opener with a
"Rolling Code" Feature (If Equipped)
If you have not previously programmed the hand-held
transmitter to HomeLink, see "Programming the
HomeLink Transmitter" listed previously. If you have
completed this programming already, you now need to
train the garage door opener motor head unit to
recognize HomeLink.
1. Find the "Learn" or "Smartbutton" on the garage
door opener motor head unit. The exact location and
color will vary by garage door opener brand. If you
have difficulty finding the Learn or Smart button,
refer to your garage door opener owner's manual or
contact the manufacturer of HomeLink at
1-800-355-3515, or on the internet at
www.homelink.com.
Because of the steps involved, it may be helpful
to have another person assist in programming
the transmitter.
2. Press the Learn or Smart button on the garage
door opener motor head unit. An indicator light will
begin to flash when the motor head unit enters the
training mode.
Following this step, you have 30 seconds to
start Step 3.
3. Return to HomeLink in your vehicle and firmly
press and release the programmed HomeLink button
three times.
The rolling-code garage door opener should now
recognize HomeLink. You may either use HomeLink
or the hand-held transmitter to open the garage door.
If after following these instructions, you still have
problems training the garage door opener, contact the
manufacturer of HomeLink at 1-800-355-3515,
or on the internet at www.homelink.com.
www.gmcextendedwarranty.com

Dec 19, 2010 | GMC Yukon XL Cars & Trucks

1 Answer

I have an old Lifmaster professional garage door opener model 1040-6. I just got a new car that has a built in garage door opener. The instructions call for pushing the reset button on the garage door...


THE OLDER UNITS THAT HAVE SWITCHES INSTEAD OF A PROGRAM BUTTON REQUIRE A DIFFERENT PROCEEDURE - YOU USE A REMOTE PROGRAMED TO THE DOOR TO TRAIN THE VISOR.

IF YOU NEED INSTRUCTIONS GOTO HOMELINK.COM FOR COMPLETE SET - PRINT THEM OUT AND KEEP.

HOPE THIS HELPS

Apr 26, 2010 | liftmaster Chamberlain Garage Door Opener...

1 Answer

I have a quantum model 3212 serial #3000...fcc id #kj8intrmt...ok im trying to program my garage door to my truck..help please


1. In the vehicle press and hold the two outside buttons until the indicator light begins to flash (after 20 seconds). Release both buttons. Note: Some vehicles may require the ignition switch to be turned to the second (or "accessory") position during the programming process.

2. Hold the end of your handheld transmitter between 1 and 3 inches away from the Homelink surface (located on your visor or overhead console) keeping the indicator light in view.

3. Using both hands, simultaneously push the handheld transmitter button and the desired HomeLink button. DO NOT release the buttons until step 4 has been completed.

4. Hold down both buttons until the indicator light on the HomeLink Wireless Control System flashes, first slowly then rapidly. When the indicator light flashes rapidly, both buttons may be released. (The rapidly flashing light indicates successful programming of the new frequency signal.)

To train your garage door opener.

1. Locate the smart/learn button on the garage door opener motor head unit.

2. Press and immediately release the smart/learn button.

Firmly press and release the programmed HomeLink button. Press and release the HomeLink button a second time to complete the training process. (Some garage door openers may require you to do this procedure a third time to complete the training.)


Feb 23, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Program garage door opener in 2005 rx 330


There are 3 programmable Homelink buttons you can use for different remotes. Just to the right of the buttons there is an indicator light.

Decide which button you want to program. Point the none battery end of your remote 1"-3" away from the Homelink panel and press both the remote and desired Homelink button down and hold them down at the same time. After about 20 seconds, the Homelink indicator light will change from a slow flashing to a rapid flashing. You can then release both buttons,
If the garage door responds to the Homelink, your done! If not, your garage door uses a rolling codes transmitter and must be trained.
Find the training button on your garage door opener's transmitter (usually mounted on the ceiling). Press the training button and within 30 seconds press and release the programmed Homelink button twice. If the garage door opener operates, you're done! If not, press and release the Homelink button a third time and the garage door should respond. If it still does not, you may have a very old garage door opener with a none digital transmitter (like I did). In that case, you either need to buy a new opener or try to replace the transmitter with a modern digital unit (as I did). Advantage: cheaper than a whole new garage door opener.
Disadvantage: The newer openers incorporate safety features that my old opener does not have.

Apr 16, 2009 | 2005 Lexus RX330

1 Answer

Program 2004 mercury mountainer garage opener


Verify the hand-held transmitter is operative.
Prepare for programming the universal transmitter by erasing all three channels (hold down the two outside buttons until the red light begins to flash [20-30 seconds]). Release both buttons.
Select one of the three universal transmitter channels to be programmed by pressing the desired button
Hold the end of the hand-held transmitter 25-51 mm (1-2 in) from the front surface of the universal transmitter so that the red light can still be seen
Use both hands to press the hand-held transmitter button and the desired button on the universal transmitter. Do not release either button.
Hold down both buttons until the red light on the universal transmitter flashes, first slowly and then rapidly. Release both buttons when the rapid flashing begins. The universal transmitter has successfully learned the new frequency signal and can be used in place of the hand-held transmitter(s).
If the hand-held transmitter appears to program the universal transmitter but does not open the garage door, the garage door opener may have a code protected or rolling code feature.
To operate, simply press the appropriate button on the universal transmitter. The red light is on while the signal is being transmitted.
IF THE GARAGE OPENER HAS ROLLING CODES---
program as above then------
Train the garage door opener receiver to recognize the universal transmitter.
Remove the cover panel from the garage door opener receiver.
Locate the training button on the garage door opener receiver. Location and color of the button may vary by garage door opener manufacturer. Refer to the garage door opener instruction manual or owner literature.
Press the training button on the garage door opener receiver for 1-2 seconds.
Press the programmed universal transmitter button for as long as the universal transmitter red light flashes (1-2 seconds). Release the button and re-press the button to confirm that the universal transmitter is trained to the receiver.
The garage door opener should recognize the universal transmitter.

Apr 01, 2009 | 2004 Mercury Mountaineer

1 Answer

2007 Lincoln Town Car Limited-can't program garage door entry key


ok

Learn Mode
ani_caut.gif WARNING: A garage door opening system that cannot stop or reverse itself after detecting an object in its path does not meet current federal safety standards. To decrease the risk of serious injury or death, do not use the universal transmitter with a door opening system that lacks stop and reverse features as required by federal standards. This includes any garage door opening system manufactured before April 1, 1982.
ani_caut.gif CAUTION: During this procedure, the system that you are programming will be made to operate. Make sure that people or objects are clear of the garage door or gate being programmed.
  1. Select a universal transmitter button to train.
  1. NOTE: If more than one button is pressed, priority will be given to the lowest numbered channel.
    Press and continuously hold the button for 20 seconds. CHANNEL X TRANSMIT will be displayed (X will be 1, 2 or 3) during this time.
  1. NOTE: If the channel being trained has not been previously trained, the channel will immediately enter training mode (no 20 second delay).
    After 20 seconds, the display will read CHANNEL X TRAINING to indicate training has started.
  1. Point the original garage door opener transmitter at the overhead console. Hold down the original transmitter's transmit button so the overhead console can learn the original transmitter's frequency and data stream.
  1. Training will be completed in 100 seconds or less. CHANNEL X TRAINED will be displayed when training is complete. DID NOT TRAIN will be displayed if the channel did not correctly train.
  1. NOTE: Additional training may be required for rolling code equipped devices. For additional information, refer to Rolling Code Programming in this section.
    Release the channel X button. Training is complete.
Rolling Code Programming
NOTE: To train a garage door opener (or other rolling code-equipped devices) with the rolling code feature, follow these instructions after completing the learn mode.
  1. Locate the learn or smart button on the garage door motor head unit. Exact location and color of the button may vary by product brand. If there is difficulty locating the learn or smart button, refer to the device's Owner's Literature.
  1. Press and release the learn or smart button on the garage door motor head unit.
  1. NOTE: Following the previous step, there are 30 seconds in which to proceed.
    Press and release the programmed universal transmitter button. Press and release the universal transmitter button a second time to complete the training process. (some garage door openers may require this procedure to be done a third time to complete the training.)
Transmit Mode
  1. Select the button for the desired channel (for example, for the garage door you wish to open).
  1. NOTE: If more than one button is pressed, priority will be given to the lowest numbered channel.
    Press the button. CHANNEL X TRANSMIT is displayed.
  1. The correct signal is transmitted to the device being controlled.
  1. Release the button.
Erase Mode
  1. Simultaneously press and hold buttons 1 and 3 for 20 seconds.
  1. CLEARING CHANNELS will be displayed while the channel codes are being erased.
  1. CHANNELS CLEARED will be displayed when the erase operation is complete.
  1. Release buttons 1 and 3.
Universal Transmitter Default Code Mode Loading
  1. Press and hold buttons 1 and 3 simultaneously. CLEARING CHANNELS is displayed.
  1. After 20 seconds, CHANNELS CLEARED is displayed. Continue to hold buttons.
  1. After 10 more seconds, CHANNELS DEFAULTED is displayed when the default codes have been successfully loaded

Dec 30, 2008 | 2007 Lincoln Town Car Signature Limited...

1 Answer

Jag xj6 1996 97 programming the garage door openers


1. For first time training, press and hold the two outer HomeLink buttons, releasing only when the HomeLink indicator light begins to flash after 20 seconds. (Do not perform this step when training the additional HomeLink buttons.) 2. Position the hand-held transmitter 1-3 inches away from the HomeLink surface (located on your visor), keeping the HomeLink indicator light in view.
3. Using both hands, simultaneously press and hold both the desired HomeLink button and hand held transmitter button. DO NOT release until the HomeLink indicator light flashes slowly and then rapidly. When the indicator light flashes rapidly, both buttons may be released. (The rapid flashing indicates successful training.)
property_damage_symbol_sm.gif Note: Some garage door openers may require you to replace step 3 with the “cycling” procedure noted in the “View Canadian Instructions” section.
4. Press and hold the trained HomeLink button and observe the indicator light.
  • If the indicator light is solid/continuous, training is complete and your device should activate when the HomeLink button is pressed and released.
  • If the indicator light blinks rapidly for 2 seconds and then turns a solid/continuous light, proceed with the following training instructions for a rolling code device. A second person may make the following steps quicker and easier. Please use a ladder or other device. Do not stand on your vehicle to perform the next steps.
5. At the garage door opener receiver (motorhead unit) in the garage, locate the “learn” or “smart” button (usually near where the hanging antenna wire is attached to the unit). If there is difficulty locating the training button, reference the garage door opener’s manual or contact us. 6. Press and release the “learn” or “smart” button (the name and color of the button may vary by manufacturer). NOTE: Once the button is pressed, there are 30 seconds in which to initiate the next step. 7. Return to the vehicle and firmly press and hold the trained HomeLink button for two seconds and release. Repeat the “press/hold/release” sequence up to 3 times to complete the training process.

Jun 13, 2008 | 1997 Jaguar XJ6

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