transmission Lexus HS250h 2011 Do-it-yourself maintenance / LEXUS 2011 HS250H OWNERS MANUAL (OM75037U)

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1-8. Safety informationCorrect driving posture ............. 104
SRS airbags ..................................... 106
Front passenger occupant classification sy stem ................... 118
Child restraint systems ............... 123
Installing child re straints .............. 127
2-1. Driving procedures Driving the vehicle ........................ 138
Power (ignition) switch ............... 147
EV drive mode ............................... 152
Hybrid transmission ..................... 155
Turn signal lever .............................. 161
Parking brake ................................. 162
Horn.................................................... 163
2-2. Instrument cluster Gauges and meters ..................... 164
Indicators and warning lights................................................. 168
Multi-information display............ 172
Head-up display ............................ 178 2-3. Operating the lights and
windshield wipers
Headlight switch ............................ 186
Automatic High Beam .................. 191
Fog light switch .............................. 197
Windshield wipers and washer ............................................ 198
Headlight cleaner switch .......... 203
2-4. Using other driving systems Cruise control ............................... 204
Dynamic radar cruise control........................................... 208
LKA (Lane-Keeping Assist) ..... 221
Driving assist systems................. 229
Hill-start assist control ............... 234
Pre-Collision System.................. 236
2-5. Driving information Cargo and luggage ..................... 245
Vehicle load limits ........................ 248
Winter driving tips ....................... 249
Trailer towing ................................. 252
Dinghy towing ............................... 253
2When driving

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: If equipped
*: Refer to “Navigation System Owner's Manual”.
Cup holders P. 371
Remote Touch *
Auxiliary box
P. 374
Power outlet P. 378
Seat heater switches 
Seat heater/ventilator
switches

P. 379
P. 379
Hybrid transmission
shift lever
P. 155
P position switch P. 155
OPEN CLOSE switch *
AUX port
USB port
P. 311
P. 300
TILT switch *

When driving2
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2-1. Driving proceduresDriving the vehicle.................. 138
Power (ignition) switch .......... 147
EV drive mode.......................... 152
Hybrid transmission ............... 155
Turn signal lever ........................ 161
Parking brake ........................... 162
Horn ............................................ 163
2-2. Instrument cluster Gauges and meters ................ 164
Indicators and warning lights ......................................... 168
Multi-information display ..... 172
Head-up display ...................... 178
2-3. Operating the lights and windshield wipers
Headlight switch...................... 186
Automatic High Beam ............ 191
Fog light switch ........................ 197
Windshield wipers and washer ..................................... 198
Headlight cleaner switch.... 203 2-4. Using other driving systems
Cruise control......................... 204
Dynamic radar cruise control .................................... 208
LKA (Lane-Keeping Assist) ........ 221
Driving assist systems ........... 229
Hill-start assist control ......... 234
Pre-Collision System ............ 236
2-5. Driving information Cargo and luggage ............... 245
Vehicle load limits .................. 248
Winter driving tips ................. 249
Trailer towing .......................... 252
Dinghy towing ......................... 253

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2-1. Driving procedures
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When driving
Hybrid transmission
Select a shift position appropriate for the driving conditions.
■Shifting the shift lever
Shift lever
Operate the shift lever gently
and ensure correct shifting
operation.When shifting to the D
or R positions, move the
shift lever along the shift
gate.
To shift to the N position,
slide the shift lever to the
left and hold it. The shift
position will change to N.
Shifting to B is only pos-
sible when shift position
D is selected.
The shift lever will
always return to this
position after a shifting
operation.
When shifting from P to D or R,
from D to R, or from R to D,
ensure that the brake pedal is
being depressed and the vehicle
is stationary.
Shift position indicator
When selecting the shift posi-
tion, make sure that the shift
position has been changed to
the desired position by checking
the shift position indicator pro-
vided on the instrument panel.
When any shift position other
than D or B is selected, the
arrow toward B disappears from
the shift position indicator.

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4-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal
• The accelerator pedal should move smoothly (without uneven pedal
effort or catching).
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have appro- priate clearance from the floor?
( P. 5 6 2 )
• Does the brake pedal have the cor- rect amount of free play?
( P. 5 6 2 )
Brakes
• The vehicle should not pull to one
side when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get too close to the floor when the brakes
are applied.
Head restraints• Do the head restraints move
smoothly and lock securely?
Hybrid transmission “Park” mecha-
nism• Can the vehicle be held securely on an incline with the shift position
in P?
Indicators/buzzers• Do the indicators and buzzers function properly?
Lights
• Do all the lights come on?
• Are the headlights aimed cor-rectly? ( P. 4 7 3 )

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4-3. Do-it-yourself maintenance
Fuse layout and amperage ratingsEngine 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
7P CON MTR30 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
8AMP NO.130 AAudio system, back door opener
9IGCT30 APCU, IGCT NO.2, IGCT NO.3,
hybrid system

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4-3. Do-it-yourself maintenance
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Maintenance and care
10P CON MAIN7. 5 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
11AM27. 5 A
Smart access system with push-button
start, hybrid system, multiport fuel
injection system/sequential multiport
fuel injection system, P position con-
trol system, cruise control system,
dynamic radar cruise control system
12ECU-B27. 5 A
Smart access system with push-button
start, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, trunk opener switch
13MAYDAY10 ALexus link system
14ECU-B310 AAir conditioning system, rear window
defogger, mirror heater
15TURN & HAZ10 ATurn signal lights, emergency flashers
16ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17ABS MAIN NO.120 AElectronically controlled brake system
18P/I 240 A
P position control system, hybrid sys-
tem, transmission, smart access sys-
tem with push-button start, horn,
headlights (low beam), back-up lights
19ABS MTR 130 AElectronically controlled brake system
20ABS MTR 230 AElectronically controlled brake system
21H-LP HI MAIN20 AHeadlights (high beam)
22AMP NO.230 AAudio system, navigation system
FuseAmpereCircuit

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When trouble arises
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5-1. Essential information
If your vehicle needs to be towed
Before towingThe following may indicate a probl em with your hybrid transmission.
Contact your Lexus dealer before towing.
● The hybrid system is operating but the vehicle will not move.
● The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency
towing eyelet(s). This should only
be attempted on hard surfaced
roads for short distances at under
18 mph (30 km/h).
A driver must be in the vehicle to
steer and operate the brakes. The
vehicle’s wheels, drive train, axles,
steering and brakes must be in
good condition.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a
flatbed truck.
Use a safety chain system for all towi ng, and abide by all state/provincial
and local laws.

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5-1. Essential information
NOTICE
■To prevent damage the vehicle when towing using a wheel-lift type truck
When raising the vehicle, ensure adequate ground clearance for towing at the
opposite end of the raised vehicle. Without adequate clearance, the vehicle could
be damaged while being towed.
■To prevent body damage when towing using a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent causing serious damage to the transmission when emergency towing
Never tow a vehicle from the rear with four wheels on the ground. This may cause
serious damage to the transmission.

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5-1. Essential information
Event data recorder
In a crash or a near crash eventThe SRS airbag sensor assembly co ntains the EDR. In a crash or near
crash event, this device may record so me or all of the following informa-
tion:
● Engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Hybrid transmission shift position
● Whether the driver and front passenger wore seat belts or not
● Driver's seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger’s occupant classification
The information abov e is intended to be used for the purpose of improv-
ing vehicle safety performance. Unlike general da ta recorders, the EDR
does not record sound data such as conversation between passengers.
Your vehicle has computers that monitor and control certain aspects of
your vehicle. These computers assist in driving and maintaining optimal
vehicle performance.
Besides storing data usef ul for troubleshooting, there is an event data
recorder (EDR) that records data in a crash or near crash event.