If it's setting off the g-sensor when you close the door but not filling your card with unwarranted parking files then all is well and consider yourself lucky
Most of the time g-sensor is either far too sensitive and winds set it off fillingbthye card with junk, or the opposite where someone bangs you car hard enough to leave a dent but the cam didn't record. Of my nearly 10 different cams, only one has a usable g-sensor and this seems to be the norm.