engine oil Lexus HS250h 2010 Using the Bluetooth audio system / LEXUS 2010 HS250H (OM75006U) User Guide

426
4-3. Do-it-yourself maintenance
■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds and fre -
quent acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumpt ion, keep in mind that the oil may
have become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 Imp. qt./600 miles (1.0 L per 1000
km)
●If your vehicle consumes more than 1.1 qt. (1.0 L, 0.9 Imp. qt.) every 600 miles
(1000 km), contact your Lexus dealer.
■After changing the engine oil (U.S.A. only)
The engine oil maintenance data should be r
eset. Perform the following proce-
dures:
Switch the display to the trip meter “A” when the hybrid system is operat -
ing. ( P. 1 6 3 )
Turn the “POWER” switch off.
While pressing the trip meter reset button ( P. 1 6 3 ), turn the “POWER”
switch to ON mode (do not start th e
hybrid system because otherwise
the reset mode will be canceled). Co ntinue to press and hold the button
until the trip meter displays “000000” and the multi-information display
indicates that the reset is complete.

427
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation and skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in househol d trash, in sewers or onto the ground. 
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.

458
4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
Engine compartment
FuseAmpereCircuit
1HTR50 AAir conditioning system
2RDI40 AElectric cooling fans
3OIL PMP10 AHybrid system, transmission
4S-HORN10 ANo circuit
5ABS MAIN NO.27. 5 AElectronically controlled brake system
6H-LP CLN30 AHeadlight cleaner
7AMP NO.130 AAudio system, back door opener
8IGCT30 APCU, IGCT NO.2, IGCT NO.3,
hybrid system
9P CON MAIN7. 5 A
P position control system, hybrid sys-
tem, smart access system with push-
button start

5
When trouble arises
501
5-2. Steps to take in an emergency
If a warning message is displayed
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa -
tion display. The following warning ind icates the pos
sibility of damage to
the vehicle that may lead to an acci dent. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
A buzzer also sounds.
The warning message is displayed if the engine oil
pressure is too low.
Indicates a malfunction in the hybrid systemA buzzer also sounds.
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur -
rently being displayed on the
multi-information display
.
Multi-information display
If any of the warning light comes on again af
ter the following actions
have been performed, contact your Lexus dealer.

506
5-2. Steps to take in an emergency
(Flashes)
(If equipped)
Indicates that the moon
roof is not fully closed A buzzer also sounds.
(With the “POWER”
switch off, and the
driver's door open)
Close the moon roof.
Indicates that the parking
brake is still engagedIf the vehicle reaches a
speed of 3 mph 
(5 km/h),
flashes and a buzzer
sounds to indicate that
the parking brake is still
engaged.
Release the parking
brake.
Indicates that the washer
fluid level is lowAdd washer fluid.
(U.S.A. only)
Indicates that the engine
oil is scheduled to be
changed
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. 
(The indicator will not
work properly unless the
oil maintenance data has
been reset.)
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
507
5-2. Steps to take in an emergency
(U.S.A. only)
Indicates that the engine
oil should be changedComes on approxi-
mately 5000 miles
(8000 km) after the
engine oil is changed
(and the oil maintenance
data has been reset)
Check and change the
engine oil.
Indicates that the tire
inflation pressure is lowCheck the tire inflation
pressure, and adjust to the
appropriate level.
(If equipped)
Indicates that the pre-
collision system is not
currently functional
because the grille or the
sensor is dirty.
This message also
appears when the pre-
collision system is not
functional due to over-
heating.
Check the grille and the
sensor and clean them if
they are dirty.In case of overheating,
the system will become
functional once the sys-
tem cools down.
(If equipped)
Indicates that intuitive
parking assist sensor is
dirty or covered with ice
A buzzer also sounds.
The site of the malfunc-
tion and the vehicle
image are flashing.
Clean the sensor.
Wa r n i n g m e s s a g eDetailsCorrection procedure

520
5-2. Steps to take in an emergency
■Warning light display in radar cruise mode
In the following cases, the warning light may
not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P.
4 2 6 )

551
6-1. Specifications
6
Vehicle specifications
■Engine oil selection
“Toyota Genuine Motor Oil” is used in y
our Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
star

ting in cold weather.
If SAE 0W-20 is not available,
S
AE 5W-20 oil may be used.
However, it must be replaced with
SAE 0W-20 at the next oil
change.
The 0W portion of the oil viscosity rating indicates the characteristic of the oil
which allows cold startability. Oils wi th a lower value before the W allow for
easier starting of the engine in cold weather.
The 20 in 0W-20 indicates the oil viscosity when the oil is at its operating
temper
ature. An oil with a higher viscosity may be better suited if the vehicle
is operated at high speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant St andar
dization and Approval Com-
mittee) Certification Mark is added to some oil containers to help y
ou
select the oil you should use.
Outside temperature

566
6-1. Specifications
Warning: The temperature grades of a tire assume that it is properly inflated
and not overloaded. 
Excessive speed, underinflation, or excess iv
e loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp ed, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of: 
(a) Curb weight 
(b) Accessory weight 
(c) Vehicle capacity weight 
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

584
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Engine oil maintenance
dataAfter changing engine oilP. 4 2 6
Tire pressure warning
system
• When rotating the tires on vehicles with differing front and rear tire infla-
tion pressures
• When changing the tire size
P. 4 3 7
The following items must be initialize d for normal system operation after
such cases as the 12-volt battery being reconnected, or maintenance
being performed on the vehicle.