power steering Lexus ES300h 2015 Service Manual

6338-2. Steps to take in an emergency
ES350_300h_OM_OM33B36U_(U)
8
When trouble arises
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
vehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

6398-2. Steps to take in an emergency
ES350_300h_OM_OM33B36U_(U)
8
When trouble arises
Indicates a malfunction in the LDA (Lane Departure
Alert) system
Indicates a malfunction in the Automatic High Beam
system
Indicates a malfunction in the EPS (Electric Power
Steering) system
Warning messageDetails
(If equipped)
(If equipped)

6578-2. Steps to take in an emergency
ES350_300h_OM_OM33B36U_(U)
8
When trouble arises
InteriorbuzzerExterior
buzzerWarning messageDetailsCorrection procedure
Once
XGasoline vehicles
XHybrid vehicles
The driver’s door
was opened and
closed with the
“START STOP
ENGINE”
<“POWER”> switch
turned off and then
the “START STOP
ENGINE”
<“POWER”> switch
was put in ACCES-
SORY mode twice
without the engine

being started.
Press the
“START
STOP
ENGINE”
<“POWER”>
switch while
depressing
the brake
pedal.
During an engine

starting procedure
in the event that the
electronic key was
not functioning
properly ( →P. 6 7 8 ) ,
the “START STOP
ENGINE”
<“POWER”> switch
was touched with
the electronic key.
Press the
“START
STOP
ENGINE”
<“POWER”>
switch within
10 seconds
of the buzzer
sounding.
Once
The steering lock
could not be
released within 3
seconds of the
“START STOP
ENGINE”
<“POWER”> switch
being pressed.
Press the
“START
STOP
ENGINE”
<“POWER”>
switch while
depressing
the brake
pedal and
moving the
steering
wheel left
and right.
(Flashes)
(Flashes)
(Flashes)

ES350_300h_OM_OM33B36U_(U)
7259-1. Specifications
9
Vehicle specifications
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 automatic transmis-
sion, 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 equipped, 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
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated

762What to do if... (Troubleshooting)
ES350_300h_OM_OM33B36U_(U)●
Did you press the “START STOP ENGINE” <“POWER”>
switch while firmly depressing the brake pedal? (
→P. 205, 212)
●Is the shift lever in P? ( →P. 208, 215)
●Is the electronic key anywhere detectable inside the vehicle?
(→ P. 1 3 0 )
●Is the steering wheel unlocked? ( →P. 2 0 9 , 2 1 6 )
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a tem-
porary way. ( →P. 6 7 8 )
●Is the 12-volt battery discharged? ( →P. 6 8 0 , 6 8 4 )
●Is the “START STOP ENGINE” <“POWER”> switch in
IGNITION ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the “START STOP ENGINE” <“POWER”> switch in
IGNITION ON mode ( →P. 6 76 )
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal

763What to do if... (Troubleshooting)
ES350_300h_OM_OM33B36U_(U)●
It is locked automatically to prevent theft of the vehicle.
(→
P. 208, 215)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat can-
not be operated if the window lock switch is pressed. ( →P. 177)
●Gasoline vehicles: The auto power off function will be operated
if the vehicle is left in ACCESSORY or IGNITION ON mode
(the engine is not running) for a period of time. ( →P. 2 0 8 )
●Hybrid vehicles: The auto power off function will be operated if
the vehicle is left in ACCESSORY or ON mode (the hybrid
system is not operating) for a period of time. ( →P. 215)
The steering wheel cannot be tu
rned after the engine system> is stopped
The windows do not open or close by operating the power win-
dow switches
The “START STOP ENGINE” <“POWER”> switch is turned off
automatically

769Alphabetical index
ES350_300h_OM_OM33B36U_(U)
Cup holders ............................................ 486
Curtain shield airbags ........................... 39
Customizable features ....................... 730
Daytime running light system .......... 235
DefoggerFront windshield .................................470
Outside rear view mirrors .............470
Rear window ........................................470
Dimension ............................................... 700
Dinghy towing........................................ 204
Display Dynamic radar cruise control..... 258
LDA (Lane Departure Alert) ....... 275
Multi-information display ................ 102
Trip information ................................... 103
Warning message ............................ 636
Display Audio system .........................350 Display settings ................................... 367
Setup menu ............................................ 361
Do-it-yourself maintenance ............. 537
Door courtesy lights Location ..................................................479
Wattage ....................................................714
Doors
Automatic door locking and unlocking system.................... 146
Door glasses ..........................................177
Door lock ................................................ 144
Open door warning buzzer............ 131
Open door warning light...............629
Outside rear view mirrors ...............174
Rear door child-protector.............. 145 Driver’s seat position memory..........159
Driving position memory................ 160
Memory recall function .................... 162
Power easy access system .............159
Driving Break-in tips .......................................... 190
Correct driving posture .................... 30
Driving mode select switch ..............311
Hybrid vehicle driving tips ............338
Procedures ............................................ 188
Winter drive tips .................................. 341
Dynamic radar cruise control
Function ..................................................258
Warning message................ 638, 645
Eco drive mode........................................ 311
Eco Driving Indicator ...........................109
EDR (Event data recorder).....................11
Electric motor (traction motor).......... 73
Electric Power Steering (EPS) Function .................................................... 314
Warning light ....................................... 628
Warning message............................. 639
Electronic key .......................................... 124 Battery-saving function .................... 133
If the electronic key does not operate properly ............................ 677
Replacing the battery ......................584
D
E
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

771Alphabetical index
ES350_300h_OM_OM33B36U_(U)
Enhanced VSC .......................................313
EPS (Electronic Power Steering)Function ................................................... 314
Warning light ...................................... 628
Warning message ............................ 639
Event data recorder (EDR) .................... 11
Flat tire ...................................................... 659
Floor mats ................................................... 28
Fluid Automatic transaxle........................... 710
Brake ........................................................... 711
Hybrid transaxle .................................. 710
Washer .................................................... 561
Fog lights Replacing light bulbs .............602, 610
Switch....................................................... 244
Wattage ....................................................714
Footwell light .......................................... 479
Front passenger occupant classification system ............................ 50
Front personal lights............................480
Front seats Adjustment ............................................. 157
Cleaning .................................................526
Correct driving posture ....................30
Driving position memory ................ 159
Head restraints..................................... 165
Power easy access system ............ 159
Seat heaters ..........................................478
Seat position memory....................... 159
Seat ventilators ....................................478 Front side marker lights
Light switch........................................... 233
Replacing light bulbs ...................... 606
Welcome light illumination
control.................................................... 127
Wattage ................................................... 714
Front turn signal lights Replacing light bulbs .......................604
Turn signal lever ................................. 230
Wattage ................................................... 714
Fuel Capacity ................................................. 704
Fuel gauge ................................................97
Fuel pump shut off system ............ 625
Information.............................................. 715
Refueling ................................................ 249
Type.......................................................... 704
Warning light ....................................... 629
Warning messages .......................... 647
Fuel filler door.........................................249
Refueling ................................................ 249
When the fuel filler door cannot be opened ......................... 252
Fuel pump shut off system ................ 625
Fuses.......................................................... 586
Garage door opener............................501
Gauges......................................................... 97
Glove box ............................................... 484
Glove box light...................................... 484
Grocery bag hooks............................. 488
F
G

772Alphabetical index
ES350_300h_OM_OM33B36U_(U)
Hands-free system (for cellular phone)
*..........................419
Head restraints ........................................165
Headlights Discharge headlights
precautions........................................... 611
Light switch ........................................... 233
Replacing light bulbs............................... 600, 601, 610
Wattage ....................................................714
Heaters
Air conditioning system ..................................................464
Heated steering wheel ....................478
Seat heaters ..........................................478
Outside rear view mirrors .............470
High-voltage components ................... 77
Hill-start assist control ..........................319
Hood ............................................................541
Warning message .............................. 641
Hooks
Cargo hooks ....................................... 488
Coat hooks .......................................... 499
Grocery bag hooks......................... 488
Retaining hooks (floor mat) .............28
Horn ........................................................... 232
Hybrid battery (traction battery) ................................... 77
Hybrid battery
(traction battery) air vents ................ 78 Hybrid system............................................ 73
Emergency shut off system ............. 78
Energy monitor/consumption screen ...................................................... 112
EV drive mode ..................................... 219
High voltage components ................ 77
Hybrid System Indicator ................. 100
Hybrid system precautions .............. 77
Hybrid vehicle driving tips ............338
If the hybrid system will not start ............................................... 674
Overheating...........................................691
“Power” (ignition) switch ................. 212
Starting the hybrid system............... 212
Vehicle proximity notification system ......................................................74
Hybrid System Indicator .................... 100
Hybrid transmission .............................226 If the shift lever cannot be shifted from P ................................... 676
H

776Alphabetical index
ES350_300h_OM_OM33B36U_(U)
Parking assist sensors (intuitive parking assist) ................... 281
Parking brake
Operation ................................................231
Parking brake engaged warning buzzer ...............................643
Parking brake engaged
warning message ...........................643
Parking lights
Light switch ........................................... 233
Replacing light bulbs ......................... 610
Welcome light illumination control ..........................127
PCS (Pre-Collision System) Function ....................................................321
PCS OFF switch ................................ 322
Warning light ...................................... 628
Warning message ...................... 638, 646, 651
Personal lights........................................480
Power control unit ................................... 77
Power control unit coolant Capacity .................................................707
Checking............................................... 553
Preparing and checking
before winter ..................................... 341
Radiator ................................................. 555
Power easy access system ................ 159
Power outlets ......................................... 492
Power steering (Electric Power Steering system) ..................................314
Warning light ...................................... 628
Warning message ............................ 639
“POWER” switch ................................... 212 Power trunk opener and closer ....... 149
Power windows
Door lock linked window operation ........................... 179
Jam protection function....................178
Operation................................................ 177
Window lock switch .......................... 177
Pre-Collision System (PCS)
Function .................................................... 321
PCS OFF switch ................................ 322
Warning light ....................................... 628
Warning message.......................638, 646, 651
Radar cruise control (dynamic radar cruise control)........................ 258
Radiator.................................................... 555
Radio
*...................................................... 378
RCTA (Rear Cross
Traffic Alert)........................................ 328
Rear personal lights ............................ 480
Rear side marker lights Light switch........................................... 233
Replacing light bulbs ........................ 610
Welcome light
illumination control.......................... 127
Rear door sunshades.......................... 495
Rear sunshade Operation.............................................. 495
Reverse operation feature ............ 496
P
R