electronic release

i have a bdx device and when I want to tune my car the voltage go low anyone know how to deal with this problem I have spend a lot of money to buy another battery and still didn't work please anyone can help me

I got a keyless entry with an electronic tailgate release but I have an issue with the keyfob 2x press tailgate icon. The car sometimes blinks with lights after pressing the 2x tailgate on the keyfob but never releases the tailgate. The electronic release works like a charm when using the...