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2010 Lexus HS 250h Owners Manual - Page 25

2010 Lexus HS 250h Manual

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1-1. Hybrid system n Charging the battery As the gasoline engine charges the hybrid battery (traction battery), the battery does not need to be charged from an outside source. However, if the vehicle is left parked for a long time the hybrid battery will slowly discharge. For this reason, be sure to drive the vehicle at least once every few months for at least 30 minutes or 10 miles (16 km). If the hybrid battery becomes fully discharged and you are unable to jump-start the vehicle with the 12-volt battery, contact your Lexus dealer. n 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. n 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 change 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: l Motor sounds may be heard from the engine compartment. l Sounds may be heard from the hybrid battery (traction battery) behind the rear seats when the hybrid system starts or stops. l Sounds from the hybrid system may be heard when the trunk lid is open. l Sounds may be heard from the transaxle when the hybrid system starts or stops, or while the vehicle is idling. l Engine sounds may be heard when accelerating sharply. l Sounds may be heard due to regenerative braking when the brake pedal is depressed and accelerator is loosened. l Other sounds, such as motors and mechanical noises, may be heard from the brake system when the brake pedal is depressed. l Vibration may be felt when the gasoline engine starts or stops. l Cooling fan sounds may be heard from the air intake vent on the side of rear left seatback. When driving in Eco mode, the fan noise may be louder than when driving normally. n Maintenance, repair, recycling, and disposal Contact your Lexus dealer regarding maintenance, repair, recycling and disposal. Do not dispose of the vehicle yourself. 26

Section	Page
Front	1
TOC	2
Pictoral index	8
Foreword	18
Hybrid system	23
Key information	38
Opening, closing and locking the doors and back door	44
Adjustable components seats, mirrors, steering wheel	64
Opening and closing the windows and moon roof	86
Refueling	92
Theft deterrent system	96
Safety information	101
Driving procedures	135
Instrument cluster	164
Operating the lights and windshield wipers	185
Using other driving systems	203
Driving information	242
Using the air conditioning system and defogger	252
Using the audio system	262
Using the Bluetooth audio system	312
Using the hands-free phone system for cellular phone	329
Using the interior lights	361
Using the storage features	364
Other interior features	372
Maintenance and care	402
Maintenance	409
Do-it-yourself maintenance	416
Essential information	481
Steps to take in an emergency	491
Specifications	546
Customization	570
Initialization	582
Reporting safety defects for U.S. owners	583
Abbreviation list	586
Alphabetical index	588
What to do if	600
Gas station information	604
Quick Reference Pictoral Index	605
Hybrid System	614
Entering and Exiting	618
When Driving	621
Rain and Night Driving	637
Driving Comfort	642
Opening and Closing	682
What to do if	685
Customizing Your Lexus	690
Scheduled Maintenance Guide	691

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1-1. Hybrid system

Charging the battery

As the gasoline engine charges the hybrid battery (traction battery), the battery

does not need to be charged from an outside source. However, if the vehicle is left

parked for a long time the hybrid battery will slowly discharge. For this reason, be

sure to drive the vehicle at least once every few months for at least 30 minutes or

10 miles (16 km). If the hybrid battery becomes fully discharged and you are unable

to jump-start the vehicle with the 12-volt battery, contact your Lexus dealer.

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.

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 change 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:

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.

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

Sounds may be heard from the transaxle when the hybrid system starts or stops,

or while the vehicle is 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 on the side of rear left

seatback.

When driving in Eco mode, the fan noise may be louder than when driving nor-

mally.

Maintenance, repair, recycling, and disposal

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

Do not dispose of the vehicle yourself.