See also:

Troubleshooting
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Fixed code programming
Note: It may be helpful to have another person assist you in programming the transmitter. To program units with fixed code DIP switches, you will need the garage door hand-held transmitter, ...

Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have Inspection/Maintenance (I/M) programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent ...