hi. just been for 1st decent ride on my newly purchased gs1200lc. Had an intermittent alarm for the front tyre pressure sensor. Havent noticed it without my tomtom satnav fitted. Is this luck or has anyone else had interference from a satnav. Also do the pressure sensors on this model have a battery fitted. It may just need a new one. Thanks in advance for the info. Never thought I'd end up with a gs having been a sports bike rider for years but love it...