[Collin]

I can hear a strange gurgling/bubbling sound behind the dash when the car is on and operating in battery mode, is this a normal operating sound?

 

[CANADAHYBRIDGUY]

Ate you sure it’s not the atc ( automatic temp control ) cycling the system to off . There is a fan motor and auto controls that open and close .

 

[Collin]

Ate you sure it’s not the atc ( automatic temp control ) cycling the system to off . There is a fan motor and auto controls that open and close .

it's possible, I can only describe it as it's on all the time when operating battery mode, sounds like bubbles/gurgling (i'm inclined to hazard a guess that it's not the engine coolant issue)
i wanted to capture the sound but my phone couldnt capture it.
would you say the atc on your system sounds like gurgling/bubbles?

 

[AZBean]

I can hear a strange gurgling/bubbling sound behind the dash when the car is on and operating in battery mode, is this a normal operating sound?

I take it you have a hybrid even though this was posted in the gas Pacifica section. To answer your question I too hear this on my 2018. I believe that it is the sound of the coolant circulating through the high voltage battery and that it might be an indication that there are air bubbles in the coolant. I complained about it to the dealer when the car was new and was told that it was normal. So I shrugged my shoulders and said, OK you will have to deal with it if the high voltage battery fails. Three years have now elapsed and I have had no problems.

 

[Anderd]

This is the sound of the low pressure HV battery and/or HV electronics coolant loop flowing. My Chevy volt had the same sound from its coolant loops.

 

[Temocore]

So this sound is no problem at all? I have it too on our PacHy 2019 so I was just wondering if this needed to be fixed? TIA