power steering Lexus ES300h 2017 Owner's Guide

5038-2. Steps to take in an emergency
ES300h_OM_OM33C75U_(U)
8
When trouble arises
■While towing
If the hybrid system is off, the power assist for the brakes and steering will not function,
making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in trunk. ( →P. 5 1 6 )
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place excessive
stress on the eyelet, cables or chains. The towing eyelet, cables or chains may
become damaged, broken debris may hit people and cause serious damage.
●Do not turn the power switch off.
There is a possibility that the steering wh eel is locked and cannot be operated.
■Installing towing eyelet to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelets may come loose during towing.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type truck
●Do not tow the vehicle from the rear when the power switch is off. The steering lock
mechanism is not strong enough to hold the front wheels straight.
●When raising the vehicle, ensure adequate ground clearance for towing at the oppo-
site end of the raised vehicle. Without adequate clearance, the vehicle could be dam-
aged while being towed.
■To prevent damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent damage to the vehicle during emergency towing
Do not secure cables or chains to the suspension components.
Be sure to transport the vehicle with the front
wheels raised or with all four wheels raised off
the ground. If the vehicle is towed with the front
wheels contacting the ground, the drivetrain
and related parts may be damaged or electric-
ity generated by the operation of the motor
may cause a fire to occur depending on the
nature of the damage or malfunction.

5068-2. Steps to take in an emergency
ES300h_OM_OM33C75U_(U)
Electric power steering system warning light (warning buzzer)Indicates a malfunction in the EPS (Electric Power Steering) sys-
tem
→ Have the vehicle inspected by your Lexus dealer immediately.
(If equipped)
PCS (Pre-Collision System) warning light
●When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision System)
→Have the vehicle inspected by your Lexus dealer immediately.
●When the warning light flashes (and a buzzer does not sound):
Indicates that the PCS (Pre-Collision System) is temporarily
unavailable, possibly due to either of the following:
• An area around the radar sensor or camera sensor being dirty
or covered with condensation, ice, stickers, etc.
→ Clear the dirt, condensation, ice, stickers, etc. ( →P. 2 0 0 )
• Radar sensor or camera sensor operational conditions (such as temperature etc.) being not met
→ Driving is possible in this case. The PCS (Pre-Collision Sys-
tem) will be enabled if the operational conditions (such as
temperature etc.) are met again.
●When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS (Pre-
Collision System) is disabled or both are disabled.
→ To enable the PCS (Pre-Collision System), enable both the
VSC system and PCS (Pre-Collision System). ( →P. 2 7 8 )
Slip indicator light
Indicates a malfunction in:
• The VSC system;
•The TRAC system; or
• The hill-start assist control system
→ Have the vehicle inspected by your Lexus dealer immediately.
The light will flash when the AB S, VSC or TRAC is operating.
Low fuel level warning light
Indicates that remaining fuel is approximately 2.6 gal. (9.7 L,
2.1 Imp.gal.) or less
→ Refuel the vehicle.
Seat belt reminder light (warning buzzer)*
Warns the driver and/or front passenger to fasten their seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front passenger’s
seat belt also needs to be fastened to make the warning light
(warning buzzer) turn off.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→ P. 5 1 1
Warning lightWarning light/Details/Actions

5088-2. Steps to take in an emergency
ES300h_OM_OM33C75U_(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 sitting in the seat.
●If a cushion is placed on the seat, the sensor 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 insufficient or the voltage temporarily drops,
the electric power steering system warnin g 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 fuel 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 several trips, contact your Lexus dealer as soon as
possible.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn 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 caused 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 warning system may not function properly
→ P. 4 6 9
■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.

5098-2. Steps to take in an emergency
ES300h_OM_OM33C75U_(U)
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When trouble arises
WA R N I N G
■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 vehi-
cle will become extremely unstable during br aking, 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 oper-
ate 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 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.

5138-2. Steps to take in an emergency
ES300h_OM_OM33C75U_(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 (80 00 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. 4 4 1 )
*: Refer to the separate “Scheduled Maintenance” 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 maintenance 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. 4 5 5 )
■If “Oil Maintenance Required Your Dealer” is shown
Indicates that the engine oil should be change d. (After the engine oil is changed and the
oil maintenance data has been reset.)
Check and change the engine oil, and oil filter by your Lexus dealer. After changing the
engine oil, the oil change system should be reset. ( →P. 4 5 5 )
■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. (if equipped)
The following systems may be suspended un til the problem shown in the message is
resolved.
●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 operated incorrectly or the vehicle from moving
unexpectedly, a message that requires 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.

558
ES300h_OM_OM33C75U_(U)9-1. Spec
ifications
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 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 manu-
facturer
Accessory weight
The combined weight (in excess 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 equipment (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 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 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 replace, 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

587What to do if... (Troubleshooting)
ES300h_OM_OM33C75U_(U)
●Did you press the power switch while firmly depressing the brake pedal?
(→ P. 1 6 8 )
●Is the shift lever in P? (→ P. 1 7 0 )
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 1 2 1 )
●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. 5 2 8 )
●Is the 12-volt battery discharged? ( →P. 5 2 9 )
●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. 1 7 8 )
●It is locked automatically to prevent theft of the vehicle. ( →P. 1 7 0 )
●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. 1 4 5 )
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted fr om 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

593Alphabetical index
ES300h_OM_OM33C75U_(U)
Daytime running light system ........... 183
DefoggerFront windshield ................................. 392
Outside rear view mirrors .............392
Rear window ........................................392
Dimension ............................................... 540
Dinghy towing.......................................... 167
Display Dynamic radar cruise control...... 226
LDA (Lane Departure Alert with steering control) ..................... 217
Multi-information display ....................91
Trip information ..................................... 87
Warning message ................................ 511
Display Audio system ......................... 290
Display settings ...................................307
Setup menu .......................................... 302
Do-it-yourself maintenance ............. 447
Door courtesy lights Location ................................................. 400
Wattage ................................................. 548
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 .......... 266
Hybrid vehicle driving tips ............ 282
Procedures .............................................154
Winter drive tips ................................ 284
Dynamic radar cruise control
Function .................................................. 226
Eco drive mode......................................266
EDR (Event data recorder).....................11
Electric motor (traction motor).......... 67
Electric Power Steering (EPS) Function ...................................................277
Warning light ...................................... 506
Electronic key .......................................... 104
Battery-saving function .................... 123
If the electronic key does not operate properly ............................ 527
Replacing the battery ........................481
D
E
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

595Alphabetical index
ES300h_OM_OM33C75U_(U)
Enhanced VSC ..................................... 276
EPS (Electronic Power Steering)Function .................................................. 277
Warning light ...................................... 506
EV drive mode......................................... 173
Event data recorder (EDR) .................... 11
Flat tire ....................................................... 515
Floor mats ................................................... 28
Fluid
Brake ....................................................... 546
Hybrid transmission......................... 546
Washer .................................................. 460
Fog lights
Switch........................................................ 189
Footwell light ..........................................400
Front passenger occupant classification system ............................ 46
Front personal lights............................. 401
Front seats Adjustment ............................................. 129
Cleaning ................................................. 437
Correct driving posture ....................30
Driving position memory ................ 130
Head restraints..................................... 135
Power easy access system ............ 130
Seat heaters ......................................... 399
Seat position memory....................... 130
Seat ventilators ................................... 399 Front side marker lights
Light switch.............................................182
Replacing light bulbs ....................... 492
Wattage .................................................548
Front turn signal lights Replacing light bulbs .......................490
Turn signal lever .................................. 180
Wattage .................................................548
Fuel Capacity ................................................. 542
Fuel gauge ............................................... 86
Information............................................ 549
Refueling .................................................. 194
Type.......................................................... 542
Warning light ...................................... 506
Fuel filler door.......................................... 194
Refueling .................................................. 194
When the fuel filler door cannot be opened ...........................196
Fuses.......................................................... 483
Garage door opener............................ 415
Gauges........................................................ 86
Glove box ............................................... 404
Grocery bag hooks..............................407
F
G

596Alphabetical index
ES300h_OM_OM33C75U_(U)
Hands-free system (for cellular phone)
*........................ 349
Head restraints ....................................... 135
Headlights Adaptive Front-lighting System
(AFS) ..................................................... 183
Light switch ............................................ 182
Replacing light bulbs.........................................488, 495
Wattage ................................................. 548
Heaters
Air conditioning system ................................................. 388
Heated steering wheel ................... 399
Seat heaters ......................................... 399
Outside rear view mirrors .............392
High-voltage components .................... 71
Hill-start assist control ........................ 276
Hood .......................................................... 449
Hooks Cargo hooks ........................................407
Coat hooks ............................................ 414
Grocery bag hooks..........................407
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 ............ 282
If the hybrid system will not start ............................................... 525
Overheating.........................................533
“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