In the unlikely event that your Highway 300Di becomes unresponsive and appears ‘locked up’, you can always recover the product by forcing a reboot.

Forcing a reboot:

• Remove your Highway 300Di controller module from the mounting bracket.
• Press and hold down the Preset and Back buttons on the controller - and at the same time insert the controller back into the mounting bracket.
• Let go of the Preset and Back button when you see the Highway logo appear on the controller screen.

The reboot is complete and you should now have control of your Highway 300Di.