Garage door remote compatibility: what actually has to match

A replacement remote needs to speak a radio protocol your opener receiver understands. Brand and appearance help identify the product, but they are not enough by themselves.

The shortest reliable decision path

What you know	Best next step	What not to assume
Exact opener model	Use a first-party model/manual source, then match its receiver generation to the accessory specification.	A nearby model number uses the same receiver.
Only learn-button color	Use the Chamberlain/LiftMaster/Craftsman color map if the opener belongs to that family.	The same color means the same thing on another brand.
Old remote model	Read the accessory’s published protocol list, then cross-check the opener.	Same shell or same brand means same radio.
“Universal” on packaging	Read the actual supported protocol list.	Universal means every opener.

Start with the opener, not the old remote shell

Read the manufacturer and model number from the motor unit. If XEKOV has a first-party source for that model, use the exact model page. If not, identify the learn button or protocol before ordering.

For Chamberlain-family openers, learn-button color is a strong clue

Current manufacturer compatibility tools group many Chamberlain, LiftMaster and Craftsman systems by colored learn buttons. White corresponds to newer Security+ 3.0 products; yellow to Security+ 2.0; purple/brown to Security+ 315 MHz; red/orange to Security+ 390 MHz; and green to the older billion-code family.

Identifier	Radio family	Verified opener records	Current accessory records
White learn button	Security+ 3.0	11	12
Yellow learn button	Security+ 2.0	32	15
Purple or brown learn button	Security+ 315 MHz	0	15
Red or orange learn button	Security+ 390 MHz	0	15
Green learn button	Billion Code 390 MHz	0	9

That is why two remotes that look alike can behave differently—and why a current universal accessory can work across several generations only when its specifications explicitly list all of those protocols.

Genie uses a different compatibility vocabulary

Genie’s current remote guidance centers on Intellicode. The G3T-R is listed for Genie Intellicode opener models, while older DIP-switch Genie systems require an accessory that explicitly supports fixed-code operation. Do not translate Chamberlain learn-button colors into Genie compatibility.

What “universal” means in practice

Universal should be read as “supports a published set of protocols,” not “works with everything.” Current Chamberlain CHU62 and LiftMaster L992U specifications enumerate Chamberlain-family generations plus selected Genie, Linear, Stanley, Wayne-Dalton, Guardian, Sommer and Ryobi protocols. If your exact protocol is not listed, do not assume compatibility.

Three examples

White-button Chamberlain/LiftMaster: require an accessory that explicitly includes Security+ 3.0; an older Security+ 2.0-only remote is not enough.
Yellow-button opener: a newer multi-generation remote can work when yellow-button Security+ 2.0 is explicitly listed.
Genie Intellicode opener: use Intellicode compatibility, not a Chamberlain color match.

Best verification order

Exact opener model and first-party documentation.
Physical learn-button color or stated radio protocol.
Remote manufacturer compatibility specification.
Only then: programming instructions for that exact accessory.

Receiver replacement changes the answer. If a logic/receiver board was replaced, the opener’s current learn button can be more reliable than the original model-year assumption.