2018 LEXUS LS500H maintenance reset

378 6-2. Maintenance
LS500h_OM_OM50F42U_(U) 6-2.Maintenance
■
Repair and replacement
It is recommended that genuine Lexus parts
be used for repairs to ensure performance
of each system. If non-Lexus parts are used
in replacement or if a repair shop other than
a Lexus dealer perfor ms repairs, confirm
the warranty coverage. ■
Allow inspection and repairs to be per-
formed by a Lexus dealer●
Lexus technicians are well-trained spe-
cialists and are kept up to date with the
latest service information. They are well
informed about the operation of all sys-
tems on your vehicle.●
Keep a copy of the repa ir order. It proves
that the maintenance that has been per-
formed is under warra nty coverage. If any
problem should arise while your vehicle is
under warranty, your Lexus dealer will
promptly take care of it. General maintenance should be per-
formed on a daily basis. This can be
done by yourself or by a Lexus dealer.
Scheduled maintenance should be
performed at specified intervals
according to the maintenance sched-
ule. For details about ma intenance items and
schedules, refer to the “Warranty and Ser-
vice Guide”, “Owner’s Manual Supple-
ment” or “Scheduled Maintenance”.
■
Resetting the message indicating main-
tenance is required
After the required maintenance is per-
formed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedure
described below:
1 Press or of the meter control
switch to select .
2 Press or to select “Vehicle Set-
tings” and then press .Maintenance requirements To ensure safe and economical driv-
ing, day-to-day care and regular
maintenance are essential. It is the
owner’s responsibility to perform
regular checks. Lexus recommends
the maintenance below.
WARNING
■
If your vehicle is not properly main-
tained
Improper maintenanc e could result in
serious damage to the vehicle and possi-
ble death or serious injury.
■
Handling of the 12-volt battery
●
Engine exhaust, some of its constitu-
ents, and a wide variety of automobile
components contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
other reproductive harm. Work in a
well ventilated area. ●
Oils, fuels and fluids contained in vehi-
cles as well as waste produced by
component wear contain or emit
chemicals known to the State of Cali-
fornia to cause cancer and birth
defects or other re productive harm.
Avoid exposure and wash any affected
area immediately. ●
12-volt battery post s, terminals and
related accessories contain lead and
lead compounds which are known to
cause brain damage. Wash your hands
after handling. ( → P.393)
General maintenance
Scheduled maintenance

3796-2. Maintenance
LS500h_OM_OM50F42U_(U) 6
Maintenance and care 3 Press or to select “Scheduled
Maintenance” and then press .
4 Press or to select “Yes” and
then press .
A message will be displayed on the
multi-information disp lay when the reset
procedure has been completed.
You can perform some maintenance
procedures by yourself.
Please be aware that do-it-yourself
maintenance may affect warranty cov-
erage. The use of Lexus repair manuals is recom-
mended.
For details about warra nty coverage, refer
to the separate “Owner’s Guide”, “War-
ranty and Service Guide”, “Owner’s Man-
ual Supplement” or “Warranty Booklet”.Do-it-yourself maintenance General maintenance Listed below are the general main-
tenance items that should be per-
formed at the intervals specified in
the “Warranty and Service Guide”
or “Owner’s Manual Supplement”.
It is recommended that any prob-
lem you notice should be brought to
the attention of your Lexus dealer
or qualified service shop for advice. WARNING■
If the hybrid system is operating
Turn the hybrid system off and ensure
that there is adequate ventilation before
performing maintenance checks.
Engine compartment Items Check points
Brake fluid Is the brake fluid at the
correct level?
( → P.391)
Engine/power
control unit cool-
ant Is the engine/power
control unit coolant at
the correct level?
( → P.390)
Engine oil Is the engine oil at the
correct level?
( → P.388)
Exhaust system There should not be
any fumes or strange
sounds.

390 6-3. Do-it-yourself maintenance
LS500h_OM_OM50F42U_(U) with a heavy load, or when driving while
accelerating or decelerating frequently●
When leaving the engine idling for a long
time, or when driving frequently through
heavy traffic■
After changing the engine oil
The engine oil maintena nce data should be
reset. Perform the following procedures:
1 Press or of the meter control
switch to select .
2 Press or to select “Vehicle Set-
tings” and then press .
3 Press or to select “Oil Mainte-
nance” and then press .
4 Press or to select “Yes” and
then press .
A message will be displayed on the
multi-information disp lay when the reset
procedure has been completed.
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the engine is cold. ■
Engine coolant reservoir
Reservoir cap
“F” line
“L” line If the level is on or below the “L” line, add
coolant up to the “F” line. ( → P.453)
■
Power control unit coolant reser-
voir
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir when the hybrid system is WARNING■
Used engine oil●
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as inflamma-
tion and skin cancer, so care should be
taken to avoid prolonged and
repeated contact. To remove used
engine oil from your skin, wash thor-
oughly with soap and water.
●
Dispose of used oil and filters only in a
safe and acceptable manner. Do not
dispose of used oil and filters in house-
hold trash, in sewers or onto the
ground.
Call your Lexus dealer, service station
or auto parts store for information
concerning recycling or disposal.
●
Do not leave used engine oil within the
reach of children. NOTICE■
To prevent serious engine damage
Check the oil level on a regular basis. ■
When replacing the engine oil ●
Be careful not to spill engine oil on the
vehicle components. ●
Avoid overfilling, or the engine could
be damaged. ●
Check the oil level on the dipstick
every time you re fill the vehicle.●
Be sure the engine o il filler cap is prop-
erly tightened.
Checking the coolant
A
B
C

440 7-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U) ■
If “Traction Battery Needs to be Pro-
tected Shift into P to Restart” is dis-
played
The remaining charge for the hybrid battery
(traction battery) is low, because the shift
position has been shifted to N for a long
period of time.
When moving the vehicle, shift the shift
position to P and restart the hybrid system. ■
If “Shift Is in N Release Accelerator
Before Shifting” is displayed
The accelerator pedal has been depressed
when the shift position is in N.
Release the accelerator pedal and shift the
shift position to D or R. ■
If “Depress Brake When Vehicle Is
Stopped Hybrid Syst em May Overheat”
is displayed
The message may be displayed when the
accelerator pedal is depressed to hold the
vehicle while the vehicle is stopped on an
incline, etc. The hybrid system may over-
heat. Release the accelerator pedal and
depress the brake pedal. ■
If “Auto Power Off to Conserve Battery”
is displayed
Power was turned off due to the automatic
power off function. Next time when starting
the hybrid system, operate the hybrid sys-
tem for approximately 5 minutes to
recharge the 12-volt battery. ■
If “Headlight System Malfunction Visit
Your Dealer” is displayed
The following systems may be malfunction-
ing. Have the vehicle inspected by your
Lexus dealer immediately.
●
The LED headlight system
●
AFS (Adaptive Front-lighting System)
●
The automatic headlight leveling system
●
AHB (Automatic High Beam)
■
If “Front Camera Unavailable” or “Front
Camera Unavailable Remove Debris
On Windshield” is displayed
The following systems may be suspended
until the problem shown in the message is
resolved. ( → P.219, 226, 433) ●
PCS (Pre-Collision system) ●
LTA (Lane Tracing Assist) (if equipped) ●
LKA (Lane Keeping Assist) (if equipped) ●
Dynamic radar cruise control with
full-speed range ●
RSA (Road Sign Assist) (if equipped) ●
AHB (Automatic High Beam) ■
If “Maintenance Required Soon” is dis-
played
Indicates that all maintenance according to
the driven distance on the maintenance
schedule *
should be performed soon.
Comes on approximately 4500 miles
(7200 km) after the message has been
reset. If necessary, perform maintenance.
Please reset the message after the mainte-
nance is performed. ( → P.378)*
: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the main tenance interval
applicable to your vehicle. ■
If “Maintenance Required Visit Your
Dealer” is displayed
Indicates that all mainte nance 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 ha s been reset.) Per-
form the necessary maintenance. Please
reset the message after the maintenance is
performed. ( → P.378) *
: Refer to the separate “Scheduled Main-
tenance” or “Owner’s Manual Supple-
ment” for the main tenance interval
applicable to your vehicle.
■
If “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 th e engine oil, make
sure to reset the message. ( → P.390)

4417-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U) 7
When trouble arises ■
If “Oil Maintenance Required” is dis-
played
Indicates that the engine oil should be
changed.
Check and change the en gine oil, and oil fil-
ter by your Lexus deal er. After changing the
engine oil, make sure to reset the message.
( → P.390)■
If “Shift System Malfunction Driving
Unavailable” is displayed
There is a malfunction in the shift control
system. Have the vehicle inspected by your
Lexus dealer immediately. ■
If a message that in dicates the need for
the shift lever oper ation is displayed
To prevent the shift lever from being oper-
ated incorrectly or the vehicle from moving
unexpectedly, a message that requires shift-
ing the shift position may be displayed on
the multi-information display. In that case,
follow the instruction of the message and
shift the shift position. ■
If a message that in dicates 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. ■
If a message that in dicates the need for
referring to Owner’s Manual is dis-
played●
If any of the following messages are
shown on the multi-information display,
follow the instructions.
• “Engine Coolant Temp High” ( → P.453)
•“Battery Low” ( → P.447)
• “Transmission Fluid Temp High” ( → P.175)
●
If 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”
• “Shift System Malfunction”
• “P Switch Malfunction”
• “Shift System Unavailable”
• “Hybrid System Malfunction”
•“Check Engine” • “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction” ●
If any of the following messages are
shown on the multi-info rmation display, it
may indicate a malfun ction. Immediately
stop the vehicle and contact your Lexus
dealer.
• “Braking Power Low”
• “Charging System Malfunction”
• “Oil Pressure Low” ●
If “Maintenance Required for Traction
Battery Cooling Parts” is shown, the fil-
ters may be clogged, the air intake vents
may be blocked, or there may be a gap in
the duct. Therefore, perform the follow-
ing correction procedure.
• If the air intake vent s and filters of the
hybrid battery (traction battery) are dirty,
perform the procedure on P.374 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 the vehicle inspected by your
Lexus dealer.
NOTICE■
If “High Power Consumption Partial
Limit On AC/Heater Operation” is
displayed frequently
There is a possible malfunction relating
to the charging system or the 12-volt bat-
tery may be deteriorating. Have the vehi-
cle inspected by your Lexus dealer.
■
If “Have Traction Battery Inspected”
is displayed
This message indicates that the hybrid
battery (traction battery) may require
inspection or replacement. Have the
vehicle inspected by your Lexus dealer
immediately.
Do not continue driving the vehicle, as
the hybrid system may become not able
to be started again.