Small, convenient, and easy to carry, keychain garage remotes are a favorite among homeowners and drivers. If you own or plan to buy the Garage Door Openers For Genie PMX500IC Keychain ACSR1G, you’re probably wondering which Genie openers it works with and how to set it up correctly. This guide answers those questions clearly and helps you avoid compatibility mistakes that many buyers make.

What Is the Genie PMX500IC Keychain ACSR1G?
The Garage Door Openers For Genie PMX500IC Keychain ACSR1G refer to Genie garage door opener systems that are compatible with the PMX500IC ACSR1G keychain remote.
This compact remote is designed for:
- Everyday carry on a keyring
- Single-door operation
- Secure access using rolling-code technology
Despite its small size, it offers the same security level as larger Genie remotes.
Who Manufactures the PMX500IC ACSR1G?
The PMX500IC ACSR1G is made by Genie, a trusted name in the US garage door industry for decades.
Genie’s keychain remotes are especially popular for drivers who want simple, no-fuss access without bulky transmitters.
What Technology Does the PMX500IC Use?
The PMX500IC ACSR1G uses Intellicode® rolling code technology.
Why Intellicode Matters
- A new code is sent every time you press the button
- Prevents signal copying
- Protects against unauthorized access
Rolling-code systems are widely used in secure access devices (general overview available on Wikipedia: https://en.wikipedia.org/wiki/Rolling_code).
Garage Door Openers Compatible With Genie PMX500IC ACSR1G
The most important question is compatibility. The Garage Door Openers For Genie PMX500IC Keychain ACSR1G must support Genie Intellicode.
Common Compatible Genie Openers
- Genie Intellicode I systems
- Genie Intellicode II systems
- Genie Pro residential openers with Intellicode
- Many Genie chain, belt, and screw drive models
⚠️ Not compatible with:
- Very old Genie fixed-code openers
- Openers using DIP switches
- Non-Genie brands
How to Confirm If Your Opener Is Compatible
Before programming, do a quick check.
Step-by-Step Compatibility Check
- Locate the opener motor unit
- Find the Learn/Program button
- Check the button color:
- Red, purple, or black → Intellicode (compatible)
- White or DIP switches → fixed code (not compatible)
- Look for “Intellicode” printed on the housing
This simple inspection saves time and prevents buying the wrong remote.
Why Choose a Keychain Remote Like the PMX500IC?
Keychain remotes offer practical benefits over full-size remotes.
Advantages
- ✔ Ultra-compact and lightweight
- ✔ Always with your keys
- ✔ Ideal for motorcycles and small vehicles
- ✔ Affordable replacement option
For many users, a keychain remote is more convenient than visor-mounted remotes.
How to Program Garage Door Openers For Genie PMX500IC Keychain ACSR1G
Programming is quick and beginner-friendly.
What You’ll Need
- PMX500IC ACSR1G remote
- Access to the garage opener
- Ladder (if ceiling-mounted)
Step-by-Step Programming Instructions
Step 1: Prepare the Opener
- Make sure the garage door is closed
- Confirm power is on
Step 2: Activate Learn Mode
- Press and release the Learn/Program button
- Indicator light will turn on or blink
- You have about 30 seconds
Step 3: Program the Keychain Remote
- Press the button on the PMX500IC once
- Opener light should blink or click
Step 4: Test the Remote
- Wait 5 seconds
- Press the remote again
- Door should open or close
⏱️ Total programming time: 1–2 minutes
How Many Keychain Remotes Can Be Used?
Most Genie Intellicode openers support up to 7 remotes at the same time.
This allows:
- Multiple family members
- Backup remotes
- Separate vehicles
If memory is full, older remotes must be erased.
How to Erase All Remotes (Security Reset)
If a keychain remote is lost, resetting the opener improves security.
Reset Instructions
- Press and hold the Learn button for 10 seconds
- Indicator light turns off
- All remotes are erased
- Reprogram approved remotes only
⚠️ This deletes every stored remote.
Battery Type and Replacement
The PMX500IC ACSR1G typically uses a CR2032 lithium battery.
Battery Tips
- Replace every 12–24 months
- Weak batteries reduce range
- Always test after replacement
🔋 Cold climates may shorten battery life.
Common Problems and Troubleshooting
Remote Does Not Program
- Learn mode expired
- Incompatible opener
- Weak battery
Short Operating Range
- Low battery voltage
- RF interference
- Opener antenna not hanging freely
Remote Works Intermittently
- Battery contacts dirty
- Signal interference
- Aging opener circuit board
PMX500IC vs Full-Size Genie Remotes
| Feature | PMX500IC Keychain | Full-Size Remote |
|---|---|---|
| Size | Very small | Larger |
| Buttons | Single | One to three |
| Range | Moderate | Slightly longer |
| Convenience | Excellent | Good |
👉 Choose based on portability vs multi-door control.
Is the PMX500IC ACSR1G Still Worth Buying Today?
Yes. For users who want simple, reliable, button-based access, it remains an excellent choice.
Best Use Cases
- One-door garages
- Daily drivers
- Backup remotes
- Minimalist users
It’s far more affordable than replacing an entire opener.
Safety Tips for Keychain Garage Remotes
- Keep keys secured when not in use
- Reprogram opener if keys are lost
- Avoid leaving keys inside parked vehicles
- Replace weak batteries promptly
These steps help prevent unauthorized access.
FAQ – Garage Door Openers For Genie PMX500IC Keychain ACSR1G
What is the Genie PMX500IC ACSR1G?
It’s a compact keychain remote for Genie Intellicode garage door openers.
Which garage door openers work with it?
Genie openers using Intellicode I or II technology.
How long does programming take?
Usually less than two minutes.
What battery does it use?
A CR2032 lithium battery.
Can I use multiple keychain remotes?
Yes, most Genie openers support up to seven remotes.
What should I do if I lose the remote?
Erase all remotes and reprogram the remaining ones.
Conclusion
The Garage Door Openers For Genie PMX500IC Keychain ACSR1G offer a compact, secure, and user-friendly solution for Genie Intellicode systems. With easy programming, strong rolling-code security, and excellent portability, this keychain remote is ideal for everyday use and backup access.
If this guide helped you choose or set up your Genie keychain remote, share it on social media so others can benefit from the same clear and practical information.

