oil Lexus GS300h 2013 User Guide

7386-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Engine compartment
GS300h
12-volt battery
P. 7 4 9
Power control unit coolant
reservoir (P. 745)
Engine oil level dipstick
(P. 741)
Engine oil filler cap (P.
742)
Engine coolant reservoir
(P. 744)Fuse box (P. 782)
Washer fluid tank (P. 748)
Electric cooling fans
Condenser (P. 747)
Radiator (P. 747)1
2
3
4
5
6
7
8
9

739 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
GS450h
12-volt battery
P. 7 4 9
Engine oil level dipstick
(P. 741)
Engine coolant reservoir
(P. 744)
Engine oil filler cap (P.
742)
Power control unit coolant
reservoir (P. 745)Fuse box (P. 782)
Washer fluid tank (P. 748)
Electric cooling fans
Condenser (P. 747)
Radiator (P. 747)1
2
3
4
5
6
7
8
9

741 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
With the engine at operating temperature and turned off, check the
oil level on the dipstick.
Checking the engine oil
Park the vehicle on level ground. After warming up the engine
and turning off the hybrid system, wait more than 5 minutes
for the oil to drain back into the bottom of the engine.
Holding a rag under the end, pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check
the oil level.
Low
Normal
Excessive
The shape of the dipstick
may differ depending on the
type of vehicle or engine.
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
GS300hGS450h
3
4
5
1
2
3
6

7426-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
Adding engine oil
If the oil level is below or near the low level mark, add engine oil
of the same type as that already in the engine.
Make sure to check the oil type and prepare the items needed
before adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
GS300hGS450h
Engine oil selectionP. 9 3 1
Oil quantity (Low  Full) 1.5 L (1.6 qt., 1.3 Imp.qt.)
Items Clean funnel
1
2
3

743 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the fol-
lowing situations, oil consumption may increase, and engine oil may need to
be refilled in between oil maintenance intervals.
When the engine is new, for example directly after purchasing the vehicle
or after replacing the engine
If low quality oil or oil of an inappropriate viscosity is used
When driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently
When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
CAUTION
Used engine oil
Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care should
be taken to avoid prolonged and repeated contact. To remove used engine
oil from your skin, wash thoroughly 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 household trash, in sewers or onto the
ground.
Call any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, 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 refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

7886-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30D53E_(EE)
8F/PMP25Multiport fuel injection system/sequen-
tial multiport fuel injection system
9H-LP RH-LO20Right-hand headlight (low beam)*1
10H-LP LH-LO20Left-hand headlight (low beam)*1
11BATT FAN
(HV)*210Hybrid battery (traction battery) cooling
fan system
12ABS MAIN 210Brake system
13ABS MAIN 110Brake system
14IGCT NO.130IGCT NO.2, IGCT NO.3, IGCT NO.4,
IGCT NO.5
15ECU-B7.5VGRS, smart entry & start system
16INV W/P10Hybrid system
17ETCS10Multiport fuel injection system/sequen-
tial multiport fuel injection system
18EPS-B10Electric power steering system
19D/C CUT30DOME, MPX-B
20HORN10Horn
21ODS5No circuit
22TV7.5Remote Touch screen
23P/I-B NO.280IG2 MAIN, EFI MAIN, EDU, F/PMP,
A/F
24ABS NO.230Motor relay
25P/I-B NO.150H-LP HI RH, H-LP HI LH, DRL, emer-
gency brake signal
26H-LP LO30H-LP LO RH, H-LP LO LH
27LH J/B-B40Left-hand junction block
28RH J/B-B40Right-hand junction block
29VGRS40VGRS
30OIL PMP60Oil pump
FuseAmpereCircuit

819 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)P. 8 0 2
CAUTION
Replacing light bulbs
Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
Vehicles with discharge headlights:
While the headlights are turned on, and
for a short time after they have been
turned off, metal components at the rear
of the headlight assembly will be
extremely hot. To prevent burns, do not
touch these metal components until you
are certain they have cooled down.
Metal components

8417-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
A buzzer sounds and a warning message is shown on the multi-
information display. The following warning indicates the possibil-
ity of damage to the vehicle that may lead to an accident. Immedi-
ately stop the vehicle in a safe place and contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
Stop the vehicle immediately.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
The warning light may come on if the engine
oil pressure is too low.
Indicates a malfunction in the hybrid system
or

8537-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30D53E_(EE)
*: For the EV drive mode operating conditions: P. 254
Indicates that the EV
drive mode is not avail-
able
*
The reason the EV
drive mode is not
available (the vehi-
cle is idling, battery
charge is low, speed
is higher than the EV
drive mode operat-
ing speed range,
accelerator pedal is
depressed too much)
may be displayed.
Use the EV drive mode
when it becomes avail-
able.
Indicates that the EV
drive mode has been
automatically can-
celed
*
The reason the EV
drive mode is not
available (the battery
charge is low, speed
is higher than the EV
drive mode operat-
ing speed range,
accelerator pedal is
depressed too much)
may be displayed.
Drive the vehicle for a
while.
Indicates that engine
oil level is lowCheck the level of
engine oil, and add if
necessary.
Wa r n i n g m e s s a g eDetailsCorrection procedure

8567-2. Steps to take in an emergency
GS450h_300h_OM_OM30D53E_(EE)
(If equipped)
Indicates that the LKA
(Lane-Keeping Assist)
system detects no-
handed driving (while
the lane keeping assist
function is operating)
The warning buzzer
sounds twice.
Grip the steering wheel
firmly.
(If equipped)
Indicates that the Blind
Spot Monitor sensors
or the surrounding area
on the bumper is dirty
or covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the
hybrid system has
overheated
This message may be
displayed when driv-
ing under severe
operating condi-
tions. (For example,
when driving up a
long steep hill.)
Stop and check.
(P. 917)
Indicates that the
hybrid system output is
limited because the
engine oil is over-
heatedDrive the vehicle at a
safe speed until the
warning message dis-
appears.
Wa r n i n g m e s s a g eDetailsCorrection procedure