2020 Lexus LC500h key battery

277
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehi-cle exterior ................................ 278
Cleaning and protecting the vehi- cle interior .................................. 281
6-2. Maintenance Maintenance requirements .. 287
General maintenance ............. 288
Emission inspection and mainte- nance (I/M) programs .......... 291
6-3. Do-it-yourself maintenance Do-it-yourself service precautions........................................................ 292
Hood............................................... 294
Positioning a floor jack............ 294
Engine compartment............... 296
12-volt battery............................. 303
Tires ................................................ 305
Replacing the tire ....................... 313
Tire inflation pressure ............... 317
Wheels............................................ 319
Air conditioning filter...............320
Electronic key battery ............. 322
Checking and replacing fuses ........................................................ 323
Headlight aim.............................. 327
Light bulbs .................................... 328

2796-1. Maintenance and care
6
Maintenance and care
procedures to wash the vehicle:
●Place 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.)
●Set the electronic key to battery-saving
mode to disable the smart access system
with push-button start. ( P.117)
■Aluminum wheels
●Remove any dirt immediately by using a
neutral detergent.
●Wash detergent off with water immedi-
ately after use.
●To protect the paint from damage, make
sure to observe the following precau-
tions.
• Do not use acidic, a lkaline or abrasive
detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driving or park-
ing in hot weather
■Brake caliper coating
●When using detergent, use neutral deter-
gent. Do not use hard brushes or abra-
sive cleaners, as they will damage the
coating.
●Do not use detergent on the brake cali-
pers when they are hot.
●Wash detergent off immediately after
use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent
coating
●The following precautions can extend the
effectiveness of the water-repellent coat-
ing.
• Remove any dirt, etc. from the front side
windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp
cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the win-
dows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance
has become insufficient, the coating can
be repaired. Contact
your Lexus dealer.
WARNING
■When washing the vehicle
Do not apply water to the inside of the
engine compartment. Doing so may
cause the electrical components etc. to
catch fire.
■When cleaning the windshield
Set the wiper switch to off.
If the wiper switch is in “AUTO”, the wip-
ers may operate unexpectedly in the fol-
lowing situations, and may result in hands
being caught or other serious injuries
and cause damage to the wiper blades.
Off
AUTO
●When the upper part of the windshield
where the raindrop sensor is located is
touched by hand
●When a wet rag or similar is held close
to the raindrop sensor
●If something bumps against the wind-
shield
●If you directly touch the raindrop sen-
sor body or if something bumps into
the raindrop sensor
A
B

3036-3. Do-it-yourself maintenance
6
Maintenance and care
LC500hThe 12-volt battery is located in the
trunk.
■Before recharging
When recharging, the 12-volt battery pro-
duces hydrogen gas which is flammable
and explosive. Therefore, observe the fol-
lowing precautions before recharging:
●If recharging with the 12-volt battery
installed on the vehicle, be sure to discon-
nect the ground cable.
●Make sure the power switch on the char-
ger is off when connecting and discon-
necting the charger cables to the 12-volt
battery.
■After recharging/reconnecting the 12-
volt battery
●Unlocking the doors using the smart
access system with pu sh-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.
●Start the engine with the
engine switch in ACCES-
SORY mode. The engine tem> may not start with the engine switch
turned off. However, the
engine will operate nor-
mally from the second attempt.
●The engine switch mode
is recorded by the vehicle. If the 12-volt
WARNING
■When adding washer fluid
Do not add washer fluid when the engine
is hot or running ating> as washer fluid contains alcohol
and may catch fire if spilled on the engine
etc.
NOTICE
■Do 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.
■Diluting 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

3226-3. Do-it-yourself maintenance
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access syst em with push-but-
ton start and wireless remote control will
not function properly.
●The operational rang e will be reduced.
■When the card key battery needs to be
replaced (if equipped)
The battery for th e 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
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent
type recommended by the manufacturer.
●Dispose 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 screwdri ver with tape.
3Remove the depleted battery using
a small flathead screwdriver.
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

329
7
7
When trouble arises
When trouble arises
7-1. Essential informationEmergency flashers.................. 330
If your vehicle has to be stopped in an emergency .......................... 330
If the vehicle is trapped in rising water............................................. 331
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................ 333
If you think something is wrong ........................................................ 337
Fuel pump shut off system (LC500).................................... 338
If a warning light turns on or a warning buzzer sounds ....... 339
If a warning message is displayed ........................................................ 348
If you have a flat tire.................. 354
If the engine will not start (LC500).................................... 355
If the hybrid system will not start (LC500h) ................................. 356
If you lose your keys ................. 358
If the fuel filler door cannot be opened........................................ 358
If the electronic key does not operate properly .................... 359
If the 12-volt battery is discharged ......................................................... 361
If your vehicle overheats (LC500).................................... 368If your vehicle overheats
(LC500h)................................. 370
If the vehicle becomes stuck 374

3527-2. Steps to take in an emergency
• “Access System with Elec. Key Malfunction”
• “Shift system malfunction”
• “P switch malfunction”
• “Shift system unavailable”
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction in a system or part. Immediatel y have the vehicle inspected by your Lexus
dealer.
• “Hybrid System Malfunction” (LC500h)
•“Check Engine”
•“Hybrid Battery System Malfunction” (LC500h)
• “Accelerator System Malfunction”
• “Hybrid system stopped” (LC500h)
• “Engine stopped”(LC500h)
●If any of the following messages is shown on the multi-information di splay, it may indicate
a malfunction. Immediately stop the vehicle and contact your Lexus dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low”
●If “Aux Battery Low” is shown, observe the following. (LC500h)
• If the message disappears in a few minutes*
Keep the hybrid system operating for more than approximately 15 minutes to charge the
12-volt battery.
• If the message does not disappear Refer to “If the 12-volt battery is discharged” ( P.361) to start the hybrid system
*: It is displayed for approximately 6 seconds.
●If “Battery low” is shown, the 12-volt battery charge is insufficient. Recharge or replace the
12-volt battery.
●If “Maintenance Required for Traction battery Cooling Parts” is shown, the filters may be
clogged, the air intake vents may be blocked, or there may be a gap in the duct. There-
fore, perform the following correction procedure. (LC500h)
• If the air intake vents and filters of the hybrid battery (traction battery) are dirty, perform the procedure on P.283 to clean them.
• If the warning message is shown when the air intake vents and filters of the hybrid battery
(traction battery) are not dirty, have th e vehicle inspected by your Lexus dealer.
■If a message that indicates the need fo r visiting your Lexus dealer is shown
The system or part shown on the multi-information display is malfunctioning. Have the vehi-
cle inspected by your Lexus dealer immediately.
■Warning buzzer
In some cases, the buzzer may not be heard du e to being in a noisy location or audio sound.
NOTICE
■While the engine oil level warning message is displayed
Continued engine operation with low engine oil will damage the engine.

3557-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
The electronic key may not be func-
tioning properly. ( P.360)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.184)
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
( P.148)
 There may be a malfunction in the
engine immobilizer system.
( P.68)
 There may be a malfunction in the
shift control system.
* ( P.151)
 There may be a malfunction in the
steering lock system.
*: It may not be possible to shift the shift
position other than P.
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( P.361)
 The 12-volt battery terminal con-
nections may be lo ose or corroded.
( P.305)
The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine.
One of the following may be the cause
of the problem:
 One or both of the 12-volt battery
terminals may be disconnected.
( P.305)
 The 12-volt battery may be dis-
charged. ( P.361)
 There may be a malfunction in the
steering lock system.
If the engine will not start
(LC500)
If the engine will not start even
though correct starting procedures
are being followed ( P.148), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.

3567-2. Steps to take in an emergency
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:
1Press the parking brake switch to
check that the parking brake is set.
(P.170)
Parking brake indicator will come on.
2 Turn the engine switch to ACCES-
SORY mode.
3 Press and hold the engine switch
for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by your Lexus dealer. One of the following may be the cause
of the problem:

The electronic key may not be func-
tioning properly. ( P.360)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( P.184)
 There may be a malfunction in the
immobilizer system. ( P.68)
 There may be a malfunction in the
shift control system.
* ( P.155)
 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.
*: It may not be possible to shift the shift
position other than P.
Starting the engine in an emer-
gency
If the hybrid system will not
start (LC500h)
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.151)