2018 Lexus ES300h radio

ES300h_OM_OM33D45U_(U)
4657-3. Do-it-yourself maintenance
7
Maintenance and care
■Tire types
●Summer tires
Summer tires are high-speed performance tires best suited to highway driving under
dry conditions. Since summer tires do not have the same traction performance as
snow tires, summer tires are inadequate for driving on snow-covered or icy roads. For
driving on snow-covered roads or icy road s, the use of snow tires is recommended.
When installing snow tires, be sure to replace all four tires.
●All season tires
All season tires are designed to provide better traction in snow and to be adequate for
driving in most winter conditions as well as for use year-round. All season tires, how-
ever, do not have adequate traction perfor mance compared with snow tires in heavy
or loose snow. Also, all season tires fall short in acceleration and handling perfor-
mance compared with summer tires in highway driving.
●Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If
you need snow tires, select ti res of the same size, construction and load capacity as the
originally installed tires. Since your vehicle has radial tires as original equipment, make
sure your snow tires also have radial cons truction. Do not install studded tires without
first checking local regulations for possible restrictions. Snow tires should be installed
on all wheels. ( →P. 280)
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tire s as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects th e radio wave signals is installed.
• If there is a lot of snow or ice on the vehi cle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extr emely higher than the specified level.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.

ES300h_OM_OM33D45U_(U)
4697-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or serious injury.
●Make sure to install four tire s that are of the specified size, and that all four tires are of
the same size, same brand, and same tread pattern.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
●If only two tires are replaced, the new tires sh ould be placed on the rear of the vehicle.
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the spec ified level. Otherwise, the tire pressure warning light may
not come on even if the tire inflation pressu re is low, or it may come on when the tire
inflation pressure is actually normal.
■Caution regarding interference with electronic devices
●Users of any electrical medical device ot her than implantable cardiac pacemakers,
cardiac resynchronization th erapy-pacemakers or implantable cardioverter defibril-
lators should consult the manufacturer of the device for information about its opera-
tion under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
●People with implantabl e cardiac pacemakers,
cardiac resynchronization therapy-pacemak-
ers or implantable cardioverter defibrillators
should not come within 17.7 in. (450 mm) of
the tire pressure warn ing system initiators.
The radio waves may affect the operation of
such devices.

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

582
ES300h_OM_OM33D45U_(U)
AVERTISSEMENT
■Précautions relatives aux coussins gonflables SRS
●Si un recouvrement de vinyle est placé sur la zone de déploiement du coussin gon-
flable SRS de protection des genoux, veillez à le retirer.
●N’utilisez pas d’accessoires recouvrant les parties du siège où les coussins gonflables
SRS latéraux se déploient, car ces access oires pourraient entraver le déploiement
des coussins gonflables. De tels accesso ires peuvent empêcher les coussins gon-
flables latéraux de se déployer correctement, rendre le système inopérant ou provo-
quer accidentellement le déploiement des coussins gonflables latéraux,
occasionnant des blessures graves, voire mortelles.
●Ne frappez pas et n’appliquez pas une pr ession importante à l’emplacement des
composants des coussins gonflables SRS.
Cela peut provoquer un mauvais foncti onnement des coussins gonflables SRS.
●Ne touchez à aucun composant des coussi ns gonflables SRS immédiatement après
leur déploiement (gonflage), ca r ils pourraient être chauds.
●Si vous avez de la difficulté à respirer après le déploiement des coussins gonflables
SRS, ouvrez une portière ou une glace pour laisser entrer l’air, ou quittez le véhicule
si vous pouvez le faire en toute sécurité. Dès que possible, nettoyez tous les résidus
afin d’éviter les irritations cutanées.
●Si les emplacements de stockage des coussi ns gonflables SRS, tels que le tampon de
volant et les garnitures des montants avant et arrière, sont endommagés ou fissurés,
faites-les remplacer par votre concessionnaire Lexus.
■Modification et mise au rebut des compos ants du système de coussins gonflables
SRS
Ne mettez pas votre véhicule au rebut et n’effectuez aucune des modifications sui-
vantes sans d’abord consulter votre conces sionnaire Lexus. Les coussins gonflables
SRS pourraient fonctionner de manière incorrecte ou se déployer (gonfler) acciden-
tellement, ce qui serait susceptible d’o ccasionner des blessures graves, voire mor-
telles.
●Installation, retrait, démontage et ré paration des coussins gonflables SRS
●Réparations, modifications, retrait ou remp lacement du volant, du tableau de bord,
de la planche de bord, de la boîte à gants, des sièges ou du capitonnage des sièges,
des montants avant, laté raux et arrière, ou des brancards de pavillon
●Réparations ou modifications de l’aile av ant, du pare-chocs avant ou du côté de
l’habitacle
●Installation d’une protection de calandre (barre safari, barre kangourou, etc.), de
lames de déneigement ou de treuils
●Modifications du système de suspension du véhicule
●Installation d’appareils électroniques tels qu’un émetteur-récepteur radio ou un lec-
teur de CD
●Modifications à votre véhicule pour une personne aux capacités physiques réduites

584What to do if... (Troubleshooting)
ES300h_OM_OM33D45U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( →P. 105)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (→ P. 107)
●Is the electronic key battery weak or depleted? ( →P. 478)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (→P. 169)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
(→ P. 123)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(→ P. 111)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open th e trunk as usual. Take the key out from the trunk.
(→ P. 116)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside

589Alphabetical index
ES300h_OM_OM33D45U_(U)
Audio system*....................................... 286
Audio input............................................295
AUX port...............................................295
Bluetooth
® audio ..............................344
CD player ............................................... 318
iPod ...........................................................325
MP3/WMA disc ................................ 318
Optimal use ......................................... 305
Portable music player ......................333
Radio ..........................................................312
Setup menu .......................................... 298
Steering wheel audio switches ............................................... 292
USB memory .......................................329
Automatic air conditioning system .................................................... 384
Automatic headlight leveling system ..................................................... 184
Automatic High Beam ........................ 185
Automatic light control system ..................................................... 182
AUX port
*.............................................. 295
Auxiliary box .......................................... 402 Back-up lights
Replacing light bulbs .........................491
Wattage ................................................. 546
Battery (12-volt battery) .....................457 If the 12-volt battery is discharged .................................... 527
Preparing and checking before winter....................................................280
Battery (traction battery) ....................... 71
Bluetooth
®*
Audio system ....................................... 334
Hands-free system (for cellular phone) ....................... 345
Brake Fluid ..........................................................455
Parking brake ......................................... 181
Warning light .......................................503
Brake assist .............................................. 272
Break-in tips ............................................. 156
Brightness control Instrument panel light control ........ 87
BSM (Blind Spot Monitor) ................264
B
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

598Alphabetical index
ES300h_OM_OM33D45U_(U)
Parking assist sensors (intuitive parking assist) .................. 237
Parking brake Operation ................................................. 181
Parking brake engaged warning buzzer .................................. 181
Parking lights Light switch ............................................ 182
Replacing light bulbs ........................492
PCS (Pre-Collision System) Function ................................................. 205
Warning light ...................................... 504
Personal lights........................................ 397
Power control unit .................................... 71
Power control unit coolant Capacity .................................................543
Checking................................................453
Preparing and checking before winter ................................... 280
Radiator ..................................................454
Power easy access system ................ 130
Power outlets ......................................... 406
Power steering (Electric Power
Steering system) ................................ 273 Warning light ...................................... 504
Power switch ........................................... 168 Power trunk opener and closer .........114
Power windows
Door lock linked window operation ...........................146
Jam protection function....................145
Operation................................................145
Window lock switch ..........................145
Pre-Collision System (PCS) Function ..................................................205
Warning light .......................................504
Radar cruise control (dynamic radar cruise control).........................225
Radiator.................................................... 454
Radio
*........................................................ 312
RCTA (Rear Cross Traffic Alert).........................................264
Rear personal lights .............................397
Rear side marker lights Light switch.............................................182
Replacing light bulbs ....................... 492
Rear door sunshades.......................... 408
Rear sunshade Operation............................................. 408
Reverse operation feature ............409
P
R