Originally Posted by gingeRS
dunno how to adjust them up or down but if you press the two diagonal buttons (top left, bottom right) on the remote when armed, it should flash 4 times and this disarms the external proximity sensor
hope this helps
cliffords rock, very highly recomended, only if installed by a pro though

Cheers GingeRS, just pressed them two buttons and got me proximity sensor working again, its been bugging me for ages, thought it was knackered!