The following sounds or vibrations may occur when the hybrid system 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) behind the rear seats
when the hybrid system starts or stops.
● Relay 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.
● 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 vents under the rear seats.
● Sounds may be heard from near the hybrid battery (traction battery) in accordance
with the operation of the air conditioning system or Traction battery cooler.
■ Maintenance, repair, recycling, and disposal
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer regarding maintenance, repair, recycling and disposal. Do not dispose of the
vehicle yourself.
System components
WARNING
Check the following regarding handling of the hybrid battery (traction battery).
● Never resell, hand over or modify the hybrid battery. To prevent accidents, hybrid
batteries that have been removed from a disposed vehicle are collected through any
authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. Do not
dispose of the battery yourself.
If the hybrid battery (traction battery) is not properly collected, the following may
occur.
• The hybrid battery may be illegally disposed of or dumped, and it is hazardous to
the environment or someone may touch a high voltage part, resulting in an electric
shock.
1-2. Important points for the plug-in hybrid system
33
1
Before driving
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