Sounds And Vibrations Specific To A Hybrid Vehicle; Maintenance, Repair, Recycling, And Disposal - Toyota Prius+ Owner's Manual

1-1. Hybrid system

Sounds and vibrations specific to a hybrid vehicle


There may be no engine sounds or vibration even though the vehicle is able
to move. For safety, apply the parking brake and make sure to shift the shift
position to P when parked.
The following sounds or vibrations may occur when the hybrid system is
operating and are not a malfunction:
 The brake system operation sound heard from the front of the vehicle
when the driver's door is opened.
 Motor sounds may be heard from the engine compartment.
Sounds may be heard from the hybrid battery (traction battery) when the

hybrid system starts or stops.
 Sounds may be heard from the transmission when the gasoline engine
starts or stops, when driving at low speeds, or during idling.
 Engine sounds may be heard when accelerating sharply.
 Sounds may be heard due to regenerative braking when the brake pedal
is depressed and accelerator is loosened.
 Other sounds, such as motors and mechanical noises, may be heard
from the brake system when the brake pedal is depressed.
Vibration may be felt when the gasoline engine starts or stops.

 Cooling fan sounds may be heard from the air intake vent. (
 The operation sound of the air conditioning system (air conditioning com-
pressor, blower motor).


Maintenance, repair, recycling, and disposal

Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional regarding maintenance, repair, recycling and dis-
posal. Do not dispose of the vehicle yourself.
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