2010 Lexus GS 450h Owners Manual - Page 26

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1-1. Hybrid system

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GS_HV_U (OM30C81U)

June 30, 2011 9:20 am

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After the 12 volt battery has discharged or has been changed or removed

The gasoline engine may not stop even if the vehicle is running on the hybrid battery

(traction battery). If this continues for a few days, contact your Lexus dealer.

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Sounds and vibrations specific to a hybrid vehicle

There may be no engine sounds or vibration even though the vehicle is able to

move. Always put the shift lever in °P± when parked.

The following sounds or vibrations may occur when the hybrid system is operating,

and are not a malfunction.

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Motor sounds may be heard from the engine compartment.

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Sounds may be heard from the hybrid battery (traction battery) behind the rear

seat when the hybrid system starts or stops.

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Sounds from the hybrid system may be heard when the trunk lid is open.

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Sounds may be heard from the transmission when the hybrid system starts or

stops.

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Engine sounds may be heard when accelerating sharply.

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Sounds may be heard from the regenerative brake when you press the brake

pedal.

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Vibration may be felt when the gasoline engine starts or stops.

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You may hear cooling fan sounds coming from the air intake vents behind the

rear seat.

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Maintenance, repair, recycling, and disposal

Contact your Lexus dealer regarding maintenance, repair, recycling and disposal.

Do not dispose of the vehicle yourself.