2018 Lexus ES300h power steering

5068-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.
●If a cushion is placed on the seat, the sens or may not detect a passenger, and the warn-
ing light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insu fficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning buzzer
may sound.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fu el tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible.
■When the tire pressure warning light comes on
Check the tire inflation pressu re and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not tu rn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural air
leaks and tire inflation pressure changes caus ed by temperature. In this case, adjusting
the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat
tire has been replaced with the spare tire.
■Conditions that the tire pressure wa rning system may not function properly
→ P. 465
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
power switch is turned to ON mode, ha ve it checked by your Lexus dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio sound.

5078-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
8
When trouble arises
WARNING
■If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g 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 oper-
ate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precaution s. 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 pressure
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.

5118-2. Steps to take in an emergency
ES300h_OM_OM33D45U_(U)
8
When trouble arises
■If “Maintenance Required Visit Your Dealer” is shown (U.S.A. only)
Indicates that all maintenance is required to correspond to the driven distance on the
maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after the message has been reset.
(The indicator will not work properly unless the message has been reset.)
Perform the necessary maintenance. Please reset the message after the maintenance is
performed (→ P. 437)
*: Refer to the separate “Scheduled Maintena nce” or “Owner’s Manual Supplement” for
the maintenance interval applicable to your vehicle.
■If “Oil Maintenance Required Soon” is shown
Indicates that the engine oil is scheduled to be changed. (The indicator will not work
properly unless the oil mainte nance data has been reset.)
Check the engine oil, and change if necessary. After changing the engine oil, the oil
change system should be reset. ( →P. 451)
■If “Oil Maintenance Required” is shown
Indicates that the engine oil should be changed. (After the engine oil is changed and the
oil maintenance data has been reset.)
Check and change the engine o il, and oil filter by your Lexus dealer. After changing the
engine oil, the oil change system should be reset. (→ P. 451)
■If “Power Turned Off to Save Battery” is shown
Power was turned off due to the automatic power off function.
Next time when starting the hybrid system, operate the hybrid system for approximately
5 minutes to recharge the 12-volt battery.
■If “Forward Camera System Unavailable” or “Forward Camera System Unavailable
Clean Windshield” is displayed.
The following systems may be suspended until the problem shown in the message is
resolved. ( →P. 215, 503)
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert with steering control)
●Dynamic radar cruise control
●Automatic High Beam
■When a message that indicates the need for the shift lever operation is shown
To prevent the shift lever from being operat ed incorrectly or the vehicle from moving
unexpectedly, a message that re quires shifting the shift lever may be shown on the multi-
information display. In that case, follow the instruction of the message and shift the shift
lever.
■If “Visit Your Dealer” is shown
The system or part shown on the multi-info rmation display is malfunctioning. Have the
vehicle inspected by your Lexus dealer immediately.

556
ES300h_OM_OM33D45U_(U)9-1. Specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has no
t been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pr essure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in exce ss of those standard items
which may be replaced) of hybrid transmission, power
steering, power brakes, power windows, power seats,
radio and heater, to the extent that these items are avail-
able as factory-installed eq uipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning 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 numb er of occupants specified
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 in stalled regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they re place, not previously con-
sidered 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
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a rim by
style or code

585What to do if... (Troubleshooting)
ES300h_OM_OM33D45U_(U)
●Did you press the power switch while firmly depressing the brake pedal? \
(→P. 168)
●Is the shift lever in P? ( →P. 170)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 121)
●Is the steering wheel unlocked? (→ P. 171)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. ( →P. 526)
●Is the 12-volt battery discharged? ( →P. 527)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode ( →P. 178)
●It is locked automatically to prevent theft of the vehicle. ( →P. 170)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( →P. 145)
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the hybrid system is stopped
The windows do not open or close by operating the power window
switches

591Alphabetical index
ES300h_OM_OM33D45U_(U)
Daytime running light system ........... 183
DefoggerFront windshield ................................ 388
Outside rear view mirrors ............ 388
Rear window ....................................... 388
Dimension ...............................................538
Dinghy towing.......................................... 167
Display Dynamic radar cruise control...... 225
LDA (Lane Departure Alert with steering control) .................... 216
Multi-information display ....................91
Trip information ..................................... 87
Warning message ............................ 509
Display Audio system ......................... 286 Display settings .................................. 303
Setup menu .......................................... 298
Do-it-yourself maintenance ............. 443
Door courtesy lights Location ................................................. 396
Wattage ................................................. 546
Doors Automatic door locking and unlocking system........................ 111
Door glasses ......................................... 145
Door lock .................................................. 110
Outside rear view mirrors ...............142
Rear door child-protector.................. 111 Driver’s seat position memory..........130
Driving position memory...................131
Memory recall function .................... 132
Power easy access system ............ 130
Driving Break-in tips ...........................................156
Correct driving posture .................... 30
Driving mode select switch .......... 262
Hybrid vehicle driving tips ............ 278
Procedures .............................................154
Winter drive tips ................................280
Dynamic radar cruise control Function .................................................. 225
Eco drive mode......................................262
EDR (Event data recorder).....................11
Electric motor (traction motor).......... 67
Electric Power Steering (EPS) Function ...................................................273
Warning light .......................................504
Electronic key .......................................... 104 Battery-saving function .................... 123
If the electronic key does not operate properly ............................ 525
Replacing the battery ...................... 478
D
E
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

593Alphabetical index
ES300h_OM_OM33D45U_(U)
Enhanced VSC ......................................272
EPS (Electronic Po wer Steering)
Function .................................................. 273
Warning light ...................................... 504
EV drive mode......................................... 173
Event data recorder (EDR) .................... 11
Flat tire ....................................................... 513
Floor mats ................................................... 28
Fluid Brake ........................................................544
Hybrid transmission..........................544
Washer .................................................. 456
Fog lights Switch........................................................ 189
Footwell light .......................................... 396
Front passenger occupant classification system ............................ 46
Front personal lights............................ 397
Front seats Adjustment ............................................. 129
Cleaning .................................................433
Correct driving posture ....................30
Driving position memory ................ 130
Head restraints ..................................... 135
Power easy access system ............ 130
Seat heaters ......................................... 395
Seat position memory....................... 130
Seat ventilators ................................... 395 Front side marker lights
Light switch.............................................182
Replacing light bulbs .......................489
Wattage ................................................. 546
Front turn signal lights Replacing light bulbs ....................... 487
Turn signal lever .................................. 180
Wattage ................................................. 546
Fuel Capacity.................................................540
Fuel gauge ............................................... 86
Information............................................ 547
Refueling ..................................................194
Type..........................................................540
Warning light .......................................504
Fuel filler door.......................................... 194 Refueling ..................................................194
When the fuel filler door cannot be opened ...........................196
Fuses.......................................................... 480
Garage door opener..............................411
Gauges........................................................ 86
Glove box ............................................... 400
Grocery bag hooks............................. 403
F
G

594Alphabetical index
ES300h_OM_OM33D45U_(U)
Hands-free system (for cellular phone)
*........................ 345
Head restraints ....................................... 135
Headlights Adaptive Front-lighting System (AFS) ..................................................... 183
Light switch ............................................ 182
Replacing light bulbs......................................... 485, 492
Wattage ................................................. 546
Heaters Air conditioning system ................................................. 384
Heated steering wheel ................... 395
Seat heaters ......................................... 395
Outside rear view mirrors ............ 388
High-voltage components .................... 71
Hill-start assist control .........................272
Hood .......................................................... 445
Hooks Cargo hooks ....................................... 403
Coat hooks ............................................ 410
Grocery bag hooks......................... 403
Retaining hooks (floor mat) ............. 28
Horn .............................................................139
Hybrid battery (traction battery) .................................... 71
Hybrid battery (traction battery) air vents .................72 Hybrid system............................................ 67
Emergency shut off system .............. 72
Energy monitor/consumption screen ..................................................... 96
EV drive mode ..................................... 173
High voltage components ................. 71
Hybrid System Indicator ...................88
Hybrid system precautions ............... 71
Hybrid vehicle driving tips ............ 278
If the hybrid system will not start ............................................... 523
Overheating...........................................531
“Power” (ignition) switch ................ 168
Starting the hybrid system.............. 168
Vehicle proximity notification system ..................................................... 68
Hybrid System Indicator ...................... 88
Hybrid transmission .............................. 175 If the shift lever cannot be shifted from P .....................................178
H