Hyundai ELANTRA 2021 Owner's Manual page 182

Convenient Features
Information
This device complies with Part 15 of the
FCC Rules.
Operation is subject to the following three
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired
operation.
3. The transceiver has been tested
and complies with FCC and
Industry Canada rules. Changes or
modifications not expressly approved
by the party responsible for compliance
could void the user's authority to
operate the device.
5-46
Two Way Communication Programing
1. Complete the HomeLink
"Programming" first.
2. Before the first 10 times HomeLink
button is pressed after the
programming, the following steps
MUST occur to program two way
communication. (only for some older
garage doors)
3. Press and release the programed
HomeLink button to activate the
garage door.
4. Once the garage door is stopped,
press and release the "Learn" or
"Smart" button on the Garage door
opener within 1 minute from the time
of pressing the programed HomeLink
button on mirror.
OCN7050088N