Turn Signal Sync

Harley-Davidson® motorcycles equipped with incandescent turn signal light bulbs that are being replaced with LED turn signals will need to perform one of the turn signal sync processes below. Doing the sync process will allow the turn signal to work properly. 

 2014 and later models with canbus / BCM electrical systems:

1. Turn Ignition on, but do not start the bike.
2. Turn on 4 way hazards by pressing the hazard button on the controls
3. Turn the Ignition off letting hazards run. IF the bike has security they will flash 5 or 6 times and then pause. This is normal. They will go back to flashing normal hazard mode.
4. Let hazards run 1-2 minutes.
5. Turn Ignition back on.
6. Turn Ignition off and then back on.
7. Check function of both turn signals.

2001-2016 models equipped with a TSSM  (Turn Signal Security Module) and are non-canbus / BCM.

1. Turn ignition on, but do not start the bike.
2. Turn on the RIGHT side turn signal and let it flash 2 times.
3. Turn on the LEFT side turn signal and let it flash 2 times.
4. Turn on the RIGHT side turn signal again and let flash a minimum of 10 times.
5. Turn on the LEFT side turn signal again and let flash a minimum of 10 times.
6. Turn the ignition key off and then back on.
7. Check the function of the turn signals.