2022 LEXUS ES300h key battery

307
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 308
Cleaning and protecting the vehi- cle interior ................................... 311
6-2. Maintenance Maintenance requirements ... 314
General maintenance .............. 315
Emission inspection and mainte- nance (I/M) programs .......... 318
6-3. Do-it-yourself maintenance Do-it-yourself service precautions......................................................... 319
Hood................................................ 321
Positioning a floor jack ............. 321
Engine compartment............... 323
12-volt battery............................. 328
Tires ................................................ 330
Tire inflation pressure .............. 338
Wheels........................................... 340
Air conditioning filter............... 342
Cleaning the hybrid battery (trac- tion battery) air intake vent and
filter .............................................. 343
Electronic key battery ............. 347
Checking and replacing fuses ........................................................ 349
Headlight aim............................... 351
Light bulbs .................................... 352

3086-1. Maintenance and care
6-1.Maintenance and care
Working from top to bottom, liber-
ally apply water to the vehicle body,
wheel wells and underside of the
vehicle to remove any dirt and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use car
wash soap and rinse thoroughly with
water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates.
If water does not bead on a clean surface,
apply wax when the vehicle body is cool.
QSelf-restoring coat
The vehicle body has a self-restoring coat-
ing that is resistant to small surface
scratches caused in a car wash etc.
OThe coating lasts for 5 to 8 years from
when the vehicle is delivered from the
plant.
OThe restoration time differs depending on
the depth of the scratch and outside tem-
perature.
The restoration time may become
shorter when the coating is warmed by
applying warm water.
ODeep scratches caused by keys, coins,
etc. cannot be restored.
ODo not use wax that contain abrasives.
QAutomatic car washes
OBefore washing the vehicle:
• Fold the mirrors
• Turn off the power trunk lid (if equipped)
Start washing from the front of the vehicle.
Make sure to extend the mirrors before
driving.
OBrushes used in automatic car washes
may scratch the vehicle surface, parts
(wheel, etc.) and harm your vehicle’s
paint.
ORear spoiler may not be washable in
some automatic car washes. There may
also be an increased risk of damage to
vehicle.
QHigh pressure car washes
As water may enter the cabin, do not bring
the nozzle tip near the gaps around the
doors or perimeter of windows, or spray
these areas continuously.
QNotes for the smart access system with
push-button start
If the door handle becomes wet while the
electronic key is within the effective range,
the door may lock and unlock repeatedly. In
that case, follow the following correction
procedures to wash the vehicle:
OPlace the key in a position 6 ft. (2 m) or
more separate from the vehicle while the
vehicle is being washed. (Take care to
ensure that the key is not stolen.)
OSet the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( P.117)
QWheels and wheel ornaments
ORemove any dirt immediately by using a
neutral detergent.
OWash detergent off with water immedi-
ately after use.
OTo protect the paint from damage, make
sure to observe the following precau-
tions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or
Cleaning and protecting the
vehicle exterior
Perform cleaning in a manner
appropriate to each component
and its material.
Cleaning instructions

3286-3. Do-it-yourself maintenance
The 12-volt battery is located on the
right-hand side of the trunk.
QBefore recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
OIf recharging with the 12-volt battery
installed on the vehicle, be sure to dis-
connect the ground cable.
OMake sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
QAfter recharging/reconnecting the 12-
volt battery
OThe hybrid system may not start.
Follow the procedure below to initialize the
system.
1 Shift the shift lever to P.
2 Open and close any of the doors.
3 Restart the hybrid system.
OUnlocking the doors using the smart
access system with push-button start may
not be possible immediately after recon-
necting the 12-volt battery. If this hap-
pens, use the wireless remote control or
the mechanical key to lock/unlock the
doors.
OStart the hybrid system with the power
switch in ACCESSORY mode. The
NOTICE
QDo not use any fluid other than
washer fluid
Do not use soapy water or engine anti-
freeze instead of washer fluid.
Doing so may cause streaking on the
vehicle’s painted surfaces, as well as
damaging the pump leading to problems
of the washer fluid not spraying.
QDiluting washer fluid
Dilute washer fluid with water as neces-
sary.
Refer to the freezing temperatures listed
on the label of the washer fluid bottle.
12-volt battery
Location

3476-3. Do-it-yourself maintenance
6
Maintenance and care
QIf the electronic key battery is depleted
The following symptoms may occur:
OThe smart access system with push-but-
ton start and wireless remote control will
not function properly.
OThe operational range will be reduced.
QWhen the card key battery needs to be
replaced (if equipped)
The battery for the card key is available only
at Lexus dealers. Your Lexus dealer can
replace the battery for you.
Prepare the following before replacing
the battery:
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
QUse a CR2032 lithium battery
OBatteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
OReplace only with the same or equivalent
type recommended by the manufacturer.
ODispose of used batteries according to
the local laws.
1 Take out the mechanical key.
2 Remove the cover.
To prevent damage to the key, wrap the tip
of the screwdriver with tape.
3Remove the depleted battery.
Insert a new battery with the “+” terminal
facing up.
Electronic key battery
Replace the battery with a new one
if it is depleted.
Items to prepare
Replacing the battery

3486-3. Do-it-yourself maintenance
WARNING
QBattery precautions
Observe the following precautions. Fail-
ure to do so may result in death or seri-
ous injury.
ODo not swallow the battery. Doing so
may cause chemical burns.
OA coin battery or button battery is
used in the electronic key. If a battery
is swallowed, it may cause severe
chemical burns in as little as 2 hours
and may result in death or serious
injury.
OKeep away new and removed batter-
ies from children.
OIf the cover cannot be firmly closed,
stop using the electr onic key and stow
the key in the place where children
cannot reach, and then contact your
Lexus dealer.
OIf you accidentally swallow a battery or
put a battery into a part of your body,
get emergency medical attention
immediately.
QTo prevent battery explosion or leak-
age of flammable liquid or gas
OReplace the battery with a new battery
of the same type. If a wrong type of
battery is used, it may explode.
ODo not expose batteries to extremely
low pressure due to high altitude or
extremely high temperatures.
ODo not burn, break or cut a battery.
NOTICE
QWhen replacing the battery
Use a screwdriver of appropriate size.
Applying excessive force may deform or
damage the cover.
QFor normal operation after replacing
the battery
Observe the following precautions to
prevent accidents:
OAlways work with dry hands.
Moisture may cause the battery to
rust.
ODo not touch or move any other com-
ponent inside the remote control.
ODo not bend either of the battery ter-
minals.

357
7
7
When trouble arises
When trouble arises
7-1. Essential informationEmergency flashers.................. 358
If your vehicle has to be stopped in an emergency ..................... 358
If the vehicle is submerged or water on the road is rising .. 359
7-2. Steps to take in an emergency
If your vehicle needs to be towed......................................................... 361
If you think something is wrong ........................................................ 362
If a warning light turns on or a warning buzzer sounds ....... 364
If a warning message is displayed ........................................................ 374
If you have a flat tire.................. 379
If the hybrid system will not start ........................................................ 386
If you lose your keys ................. 388
If the fuel filler door cannot be opened........................................ 388
If the electronic key does not operate properly .................... 389
If the 12-volt battery is discharged ......................................................... 391
If your vehicle overheats ........ 396
If the vehicle becomes stuck 399

3787-2. Steps to take in an emergency
ment” for the maintenance interval
applicable to your vehicle.
QIf “Maintenance Required Visit Your
Dealer” is displayed
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.) Per-
form the necessary maintenance. Please
reset the message after the maintenance is
performed. ( P.314)
*: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the maintenance interval
applicable to your vehicle.
QIf “Oil Maintenance Required Soon” is
displayed
Indicates that the engine oil should be
scheduled to be changed.
Check the engine oil an d change it if neces-
sary. After changing the engine oil, make
sure to reset the message. ( P.314)
QIf “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed.
Check and change the engine oil, and oil fil-
ter by your Lexus dealer. After changing
the engine oil, make sure to reset the mes-
sage. ( P.325)
QIf a message that indicates the need for
visiting your Lexus dealer is displayed
The system or part shown on the multi-
information display is malfunctioning. Have
the vehicle inspected by your Lexus dealer
immediately.
QIf a message that indicates the need for
referring to Owner’s Manual is dis-
played
OIf any of the following messages are
shown on the multi-information display,
follow the instructions.
• “Engine Coolant Temp High” ( P.396)
OIf any of the following messages are
shown on the multi-information display, it
may indicate a malfunction. Have the
vehicle inspected by your Lexus dealer
immediately.
• “Access System with Elec. Key Malfunc-
tion”
• “Hybrid system malfunction”
•“Check Engine”
• “Hybrid battery system malfunction”
• “Accelerator system malfunction”
OIf any of the following messages are
shown on the multi-information display, it
may indicate a malfunction. Immediately
stop the vehicle and contact your Lexus
dealer.
•“Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
OIf any of the following messages are
shown on the multi-information display,
the vehicle may have run out of fuel. Stop
the vehicle in a safe place and, if the fuel
level is low, refuel the vehicle. ( P.62)
• “Hybrid system stopped”
• “Engine stopped”
OIf “Low Auxiliary Battery” is shown
• When the display goes off after several
seconds
*:
Maintain the hybrid system operation for
more than 15 minutes and charge the 12-
volt battery.
• When the display does not go off:
Start up the hybrid system using the proce-
dures for “If the 12-volt battery is dis-
charged” ( P.391).
*: Displays for about 6 seconds
OIf “Maintenance required for Traction
battery cooling parts” is shown, the filter
may be clogged, the air intake vent may
be blocked, or there may be a gap in the
duct. Therefore, perform the following
correction procedure.
• If the air intake vent and filter of the
hybrid battery (traction battery) are dirty,
perform the procedure on P.343 to
clean them.
• If the warning message is shown when the air intake vent and filter of the hybrid

3867-2. Steps to take in an emergency
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.390)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.174)
 There may be a malfunction in the
immobilizer system. ( P.67)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
 For vehicles sold in except Canada:
There is a possibility that the tem-
perature of the hybrid battery (trac-
tion battery) is extremely low
(approximately below -22°F [-
30°C]). ( P.63, 148)
WARNING
QSpeed limit when using the compact
spare tire
Do not drive at speeds in excess of 50
mph (80 km/h) when a compact spare
tire is installed on the vehicle.
The compact spare tire is not designed
for driving at high speeds. Failure to
observe this precaution may lead to an
accident causing death or serious injury.
QAfter using the tools and jack
Before driving, make sure all the tools
and jack are securely in place in their
storage location to reduce the possibility
of personal injury during a collision or
sudden braking.
NOTICE
QBe careful when driving over bumps
with the compact spare tire installed
on the vehicle
The vehicle becomes lower when driving
with the compact spare tire compared to
when driving with standard tires. Be
careful when driving over uneven road
surfaces.
QDriving with tire chains and the com-
pact spare tire
Do not fit tire chains to the compact
spare tire.
Tire chains may damage the vehicle
body and adversely affect driving perfor-
mance.
QWhen replacing the tires
When removing or fitting the wheels,
tires or the tire pressure warning valve
and transmitter, contact your Lexus
dealer as the tire pressure warning valve
and transmitter may be damaged if not
handled correctly.
If the hybrid system will not
start
Reasons for the hybrid system not
starting vary depending on the situ-
ation. Check the following and per-
form the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
(  P.148)