Pioneer DEH-P8100R - Manual (Page 75)

Entry Detection
If the “RFP Alert” was not disarmed in accordance with “Disarming Alert”, the “RFP Alert”
will be triggered. The “RFP Alert” will sound for 60 seconds and will repeat 5 times if any door
is left open or reopened. After the fifth time the “RFP Alert” will reset to prevent continuous
sounding and prevent your battery from discharging.
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• Upon returning to your vehicle and before opening any doors, check to see if the LED
indicator is still flashing. If the LED is no longer flashing, it indicates that the Alert has
sounded. Disarming, as described above, is still necessary.