Chamberlain lists CH382 as a two-button MAX keychain remote compatible with white Security+ 3.0, yellow Security+ 2.0, purple/brown Security+, and red/orange Security+ opener generations. It controls up to two compatible doors or gates. The current compatibility row does not list the green LEARN-button generation for CH382.
Identify the Chamberlain / LiftMaster radio generation
Which LEARN-button family do you actually have?
Color is a generation clue, not an exact-model identifier. Faded purple can appear brown and red can age toward orange, so cross-check the antenna, adjacent LED, approximate era and model label.
What you are likely to notice
- You have a CH382 keychain remote
- You need to program the second button to another door
- Your opener has a white/yellow/purple/red-orange LEARN button
- You are deciding between CH382 and the broader CHU62 universal remote
Check these in order
1. Decide whether CH382 or a universal model fits the job
CH382 is a MAX keychain remote with a defined Chamberlain Group compatibility range. If you need green-button or competitor-brand coverage, compare the CHU62 universal remote instead of assuming CH382 has the same radio table.
2. Identify the active LEARN button
Use the opener's current receiver/LEARN control, not an old remote shell, to choose the programming branch. White, yellow, purple/brown and red/orange are listed for CH382; an added receiver can change the answer.
3. Program each keychain button independently
Choose button one for the first opener and complete the matching procedure, then repeat for button two if needed. A successful program on one button does not automatically configure the other.
4. Separate pairing failure from compatibility failure
If CH382 will not pair, confirm the generation and remote battery before repeating. Do not keep cycling through unrelated color sequences or erase all opener memory until the compatibility row actually matches the receiver.
CH382 and CHU62 look similar in purpose but solve different compatibility problems
CH382 is a compact two-button MAX keychain remote for supported Chamberlain Group generations. CHU62 is a two-button universal remote with green-button and named competitor-brand support in its manufacturer table. The right choice depends on the active receivers, not whether you prefer a keychain form factor.
If one of your two doors uses a competitor receiver or an older green Chamberlain Group branch, verify CHU62 before purchasing CH382.
Range complaints are not always a programming problem
A CH382 that works only very close to the opener has already demonstrated at least some pairing. Before reprogramming repeatedly, check the remote battery, opener antenna position and newly introduced radio-frequency interference such as LED lighting or electronics.
A remote that never operates the door after a correct pairing attempt belongs back in the compatibility/receiver branch. Preserve the Learn-button color and receiver model instead of repeatedly erasing and relearning.
Two-button keychain use creates a useful cross-check
If button one operates a verified compatible opener but button two will not program to a second garage, the working first button is evidence that the CH382 has power and can transmit. Focus the second-door investigation on that receiver generation and programming path rather than immediately replacing the remote.
If neither button has useful range, then the CR2032 battery and interference environment become shared variables worth checking before either opener is blamed.
Keychain size changes the form factor, not the receiver evidence
CH382 should still be selected from the same kind of receiver-generation evidence used for a full-size remote. The fact that it is a keychain control does not make it a universal fallback. Identify the active Learn-button generation, verify it against the current compatibility table and then use the corresponding programming path.
If the control pairs but later appears intermittent, distinguish a range problem from a lost-pairing problem. Test from a consistent location with a known-good battery and compare behavior with another working remote if one exists. A paired remote that works near the opener but not from normal driveway distance is giving different evidence from a remote that never activates the receiver at any distance.
- Choose CH382 by receiver generation, not by its keychain form factor.
- Never pairs: stay in compatibility/programming evidence.
- Works near opener but not at normal range: keep battery/antenna/interference in the branch.
Preserve receiver generation, whether the CH382 pairs at all, its usable range and the result with a known-good battery. Those observations distinguish no-pair compatibility evidence from a paired-but-short-range radio problem.
Stop DIY troubleshooting when…
- The opener uses a green Learn button
- The product is a competitor brand not explicitly covered by current CH382 manufacturer compatibility documentation
- The installed external receiver cannot be identified
- The door is unsafe to operate during testing
Garage door springs, cables and a falling/unbalanced door can store or release dangerous force. Those are door-system problems, not just opener settings.
Common questions
How many doors can CH382 control?
Chamberlain lists two independently programmable buttons for up to two compatible garage doors or gates.
Does CH382 work with green Learn button openers?
The current CH382 compatibility row does not include the green branch.
What battery does CH382 use?
The current product specification lists one CR2032 battery.
Manufacturer sources used
These links are the factual baseline for the diagnostic claims above. Model-specific manuals can supersede general guidance.