Release the button when the motor unit light blinks which will indicate that the new remote has learned the code.
Program chamberlain garage door remote 950cd.
Every time you use the remote the code changes to stop thieves from hacking your device.
To program press and release the learn programming button on the garage door opener motor unit.
Within 30 seconds press and hold the button on the hand held remote.
The 950cd 950d chamberlain garage door remote is identical to the liftmaster 371lm remote.
Helpful pdf guide to the chamberlain 950cd remote with reprogramming instructions and guide to reset my opener or troubleshoot my garage door opener.