Chrysler 300 2010 Owner's Manual page 187

It is recommended that a new battery be placed in the
handheld transmitter of the device that is being copied to
HomeLink for more efficient training and accurate
transmission of the radio-frequency signal.
Your vehicle should be parked outside of the garage
while training.
1. Place the ignition in the RUN position.
2. Place the handheld transmitter 1 to 3 in (3 to 8 cm)
from the HomeLink buttons while keeping the EVIC
display in view.
For optimal training, point the battery end of the hand-
held transmitter away from the HomeLink .
3. Simultaneously, press and hold both the chosen
HomeLink button and the handheld transmitter button
until the EVIC display changes from "CHANNEL #
TRAINING" to "CHANNEL # TRAINED."
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 187
Then release both the HomeLink and handheld trans-
mitter buttons.
If the EVIC display states "DID NOT TRAIN" repeat
Step 3. If the signal is too weak, replace the battery in the
handheld transmitter.
It may take up to 30 seconds or longer in rare cases. The
garage door may open and close while you train.
NOTE: Some gate operators and garage door openers
may require you to replace Step 3 with procedures noted
in the "Gate Operator/Canadian Programming" section.
4. Press and hold the just-trained HomeLink button. If
the channel has been trained, the EVIC display will now
state "CHANNEL # TRANSMIT."
If the EVIC display still states "CHANNEL # TRAIN-
ING" repeat Step 3.
3