I went out to my garage and heard a buzzing and I traced it to near where the ev charger plugs in under the vehicle. The ev charger was not plugged in and The car has been parked for a couple hours. Is this a common noise? I am assuming it has to do with the hybrid/ev battery? Wanting to make sure this was normal.
cyb593
They got a whole write up in the Owner’s manual;
Page 6;
Approximately five hours after the hybrid system is turned off, you may hear sound coming from under the vehicle for sev- eral minutes. This is the sound of a fuel evaporation leakage check and, it does not indicate a malfunction. Noise from under vehicle after turning off the hybrid system
Sec 2-1;
Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with the “READY” indi- cator is illuminated. For safety, apply the parking brake and make sure to shift the shift lever to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are not a malfunc- tion.
â—ŹMotor sounds may be heard from the engine compartment.
â—ŹSounds may be heard from the hybrid battery (traction battery) when the hybrid system starts or stops.
â—ŹRelay operating sounds such as a snap or soft clank will be emitted from the hybrid battery (traction battery), behind the rear seats, when the hybrid system is started or stopped
84 2-1. Plug-in hybrid system
â—ŹSounds from the hybrid system may be heard when the back door is open.
â—ŹSounds may be heard from the transmission when the gasoline engine starts or stops, when driv- ing at low speeds, or during idling.
â—ŹEngine sounds may be heard when accelerating sharply.
â—ŹSounds may be heard due to regenerative braking when the brake pedal is depressed or as the accelerator pedal is released.
â—ŹVibration may be felt when the gasoline engine starts or stops.
â—ŹCooling fan sounds may be heard from the air intake vent under the rear seat. (ď‚®P.91)
●Sounds may be heard from near the hybrid battery (traction battery) in accordance with the operation of the air conditioning system or “Battery Cooler” (P.116).
Enjoy your R4Prime talking to you.
Page 6;
Approximately five hours after the hybrid system is turned off, you may hear sound coming from under the vehicle for sev- eral minutes. This is the sound of a fuel evaporation leakage check and, it does not indicate a malfunction. Noise from under vehicle after turning off the hybrid system
Sec 2-1;
Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with the “READY” indi- cator is illuminated. For safety, apply the parking brake and make sure to shift the shift lever to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are not a malfunc- tion.
â—ŹMotor sounds may be heard from the engine compartment.
â—ŹSounds may be heard from the hybrid battery (traction battery) when the hybrid system starts or stops.
â—ŹRelay operating sounds such as a snap or soft clank will be emitted from the hybrid battery (traction battery), behind the rear seats, when the hybrid system is started or stopped
84 2-1. Plug-in hybrid system
â—ŹSounds from the hybrid system may be heard when the back door is open.
â—ŹSounds may be heard from the transmission when the gasoline engine starts or stops, when driv- ing at low speeds, or during idling.
â—ŹEngine sounds may be heard when accelerating sharply.
â—ŹSounds may be heard due to regenerative braking when the brake pedal is depressed or as the accelerator pedal is released.
â—ŹVibration may be felt when the gasoline engine starts or stops.
â—ŹCooling fan sounds may be heard from the air intake vent under the rear seat. (ď‚®P.91)
●Sounds may be heard from near the hybrid battery (traction battery) in accordance with the operation of the air conditioning system or “Battery Cooler” (P.116).
Enjoy your R4Prime talking to you.
I have learned, since getting a 2012 Prius, Toyota Hybrids, chirp, burp, sneeze, cough, moan, fart at different times even parked. I don't bat another eye anymore..
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