A motion sensor in the alarm system can go bad and cause this.
Just had the sensor in the left rear interior replaced under warranty when mine was doing this.
A second push on the fob lock button when locking will disarm the motion part (look for the red light on the mirror to go solid after the 2nd push) of the alarm till you get it fixed.
__________________
'16 M4 Vert - San Marino Blue/Sahkir 6MT
|