SOME VEHICLES MAY EXPERIENCE THE MAZDA CONNECT INFOTAINMENT SYSTEM SHUTTING DOWN WITHIN A FEW MINUTES AFTER THE IGNITION IS TURNED ON, AND WILL NOT REBOOT. IT WILL ONLY REBOOT AFTER THE IGNITION IS TURNED OFF AND THEN ON AGAIN. THIS IS CAUSED BY AN INTERNAL MALFUNCTION OF THE CONNECTIVITY MASTER UNIT (CMU) HARDWARE. NOTE: IF THE SYSTEM REBOOTS BY ITSELF, THIS TSB IS NOT APPLICABLE. REFER TO TSB 09-022/15 FOR CMU SOFTWARE UPDATE.