What kind of jams are you having, FTF, FTE? Have you tried different types of ammo? I have never had any jams (ever) with factory ammo in my XD40. I now, exclusively, shoot my own lead re-loads (180 gr. Wolf lead TC / Win primers / Unique powder) and I can't remember the last time it jammed. I usually try to clean it after each range session, usually about 250 rounds. Although, I have let it go a thousand rounds a couple of times between cleanings with no issues.
Try some different types of ammo, clean and check your mags...
Keep us posted.