Walk Behind Lawn Mowers

I have a Husqvarna Model 961450007 self-propelled walk behind mower. It was purchased on 05/05/2012. Today the self-propelled function stopped working. I thought it might have been the drive belt, so following instructions in the Operator’s Manual, I accessed the belt. At this point I discovered the drive cable had broken. I have removed the cable and mechanism.

Should replacement of the defective cable and reassembly of the unit be covered under warranty by my local servicing dealer?

Thanks,
Phil Little