871-4. Hybrid system
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For safety and security
■Sounds and vibrations sp ecific to a hybrid vehicle
There may be no engine sound or vibration even though the vehic le is able to
move with the “READY” indicator is illuminated. For safety, app ly the parking
brake and make sure to shift the shift position to P when parke d.
The  following  sounds  or  vibrations  may  occur  when  the  hybrid  sy stem  is
operating and are not a malfunction:
● Motor sounds may be heard from the engine compartment.
● Sounds  may  be  heard  from  the  hybrid  battery  (traction  battery)  under  the
rear seats when the hybrid system starts or stops.
● Relay operating sounds such as a snap or soft clank will be emi tted from the
hybrid  battery  (traction  battery),  under  the  rear  seats,  when  the  hybrid  sys-
tem is started or stopped. 
● Sounds from the hybrid system may be heard when the back door is open.
● 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 or as the accelerator pedal is released.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent. ( P. 89)
■ Vehicle proximity notification system
In  the  following  cases,  the  vehicle  proximity  notification  syst em  may  be  diffi-
cult for surrounding people to hear.
● In very noisy areas
● In the wind or the rain
Also,  as  the  vehicle  proximity  notification  system  is  installed   on  the  front  of
the vehicle, it may be more difficult to hear from the rear of  the  vehicle  com-
pared to the front.
■ When  “Proximity  Notification  Syst em  Malfunction  Visit  Your  Dealer”  is
displayed on the multi-information display
The  vehicle  proximity  notification  system  may  be  malfunctioning .  Have  the
vehicle inspected by your Toyota dealer immediately.
■ Maintenance, repair, recycling, and disposal
Contact your Toyota dealer regarding maintenance, repair, recyc ling and dis-
posal. Do not dispose of the vehicle yourself.