2017 Lexus GS300h oil temperature

4006-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(EE)
WARNING
The engine compartment contains many mech anisms and fluids that may move suddenly,
become hot, or become electrically energize d. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Make sure that the “POWER ON” on the multi-information display and the
“READY” indicator are both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, power co ntrol unit, radiator, exhaust manifold, etc.
right after driving as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper and rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are flamma-
ble.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. If fluid gets on your hands or in your eyes, flush t he affected area with clean
water immediately. If you still experience discomfort, consult a doctor.
■When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automatically start to
run if the air conditioning is on and/or the coolant temperature is high. ( P. 411)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high.
If the reservoir needs frequent refillin g, it may indicate a serious problem.

4066-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F92E_(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
GS450hGS300h
3
4
5
1
2
3
Flat dipstickNon-flat dipstick
6

487
7-2. Steps to take in an emergency
7
When trouble arises
GS450h_300h_OM_OM30F92E_(EE)
Indicates that the outside temperature is approximately 3 C (37 F) or lower
A buzzer also sounds.
 Drive carefully, as the road may be icy.
Indicates that the engine oil is scheduled to be changed
 Check the engine oil and change if necessary. After
changing the engine oil, the oil change system
should be reset. ( P. 406)
(The indicator will not work properly unless the oil
maintenance data has been reset.)
(If equipped)
Indicates that the fuel in jectors require maintenance
soon  Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer replenish the
injector cleaner to the fuel tank and reset the mes-
sage as necessary.
Indicates that the engine oil and oil filter should be
changedHave the engine oil and oil filter checked and/or
changed by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. After
changing the engine oil, the oil change system
should be reset. ( P. 406)
(If equipped)
Indicates that the fuel injectors require maintenance  Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer replenish the
injector cleaner and reset the message.
Warning messageDetails/Actions

5508-1. Specifications
GS450h_300h_OM_OM30F92E_(EE) *
: The engine oil capacity is a reference quantity to be used when changing the engine
oil. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Lexus recom-
mends the use of approved “Toyota Genuine Motor Oil”. Another motor oil of
matching quality can also be used.
Oil grade:
0W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40:
API grade SL, SM or SN multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your Lexus
vehicle at manufacturing, and the
best choice for good fuel economy
and good starting in cold weather.
If SAE 0W-20 oil is not available,
SAE 5W-30 oil may be used. How-
ever, it should be replaced with SAE
0W-20 at the next oil change.
If you use SAE 10W-30 or a higher
viscosity engine oil in extremely low
temperatures, the engine may
become difficult to start, so SAE
0W-20 or 5W-30 engine oil is rec-
ommended.
Lubrication system
Oil capacity
(Drain and refill 
reference *)
With filter
Without filterGS450hGS300h
6.3 L (6.7 qt., 5.5 Imp.qt.)
5.9 L (6.2 qt., 5.2 Imp.qt.)4.5 L (4.8 qt., 4.0 lmp. qt.)
4.1 L (4.3 qt., 3.6 lmp. qt.)
Temperature range anticipated
before next oil change Preferred

587
Alphabetical index
GS450h_300h_OM_OM30F92E_(EE) Engine coolant temperature
gauge....................................................... 105
Engine oil..................................................406 Capacity ................................................ 550
Checking .............................................. 406
Oil level warning message ...........466
Oil pressure warning message..............................................466
Preparing and checking before winter .................................... 334
Engine switch ...........................................217 Auto power off function ...................219
Changing the power switch modes ................................................... 218
If your vehicle has to be stopped in an emergency..........453
Starting the hybrid system............... 217
EPS (Electric Power Steering)........ 325
Function .................................................. 325
Warning light .........................................461
Warning message.............................466
EV drive mode ....................................... 222
First-aid kit storage net....................... 375
Flat tire
Vehicles with spare tire ................. 498
Vehicles without spare tire .......... 509
Floor mats ................................................... 34
Fluid Brake........................................................554
Hybrid transmission .........................553
Washer ...................................................... 411 Fog lights .................................................. 250
Replacing light bulbs ....................... 449
Switch ...................................................... 250
Follow me home system .................... 238
Footwell light .......................................... 366
Front air conditioning system .......... 346
Front fog lights ....................................... 250 Replacing light bulbs ....................... 449
Switch ...................................................... 250
Wattage ................................................. 449
Front personal lights............................ 367
Front position lights ............................. 237 Light switch............................................ 237
Replacing light bulbs ....................... 449
Welcome light illumination control ................................................... 140
Front seats ................................................. 175 Adjustment ............................................. 175
Cleaning ................................................ 394
Correct driving posture.................... 36
Driving position memory ................ 178
Head restraints .....................................183
Power easy access system............. 178
Seat heaters.......................................... 362
Seat position memory ....................... 178
Seat ventilators ................................... 362
Front turn signal lights ..........................231 Replacing light bulbs ........... 443, 449
Turn signal lever................................... 231
Wattage .................................................558
F
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

592Alphabetical index
GS450h_300h_OM_OM30F92E_(EE) Multi-information display ...................... 111
Audio system-linked ............................. 111
Drive information .................................. 113
Dynamic radar cruise control
with full-speed range.................... 296
G-force...................................................... 114
LKA (Lane-Keeping Assist) ......... 282
Navigation system-linked................... 111
Settings....................................................... 115
Switch settings........................................ 115
Switching the display ...........................112
nanoe  system ..................................... 356
Navigation system *
Odometer................................................. 105 Oil Differential oil .......................................554
Engine oil .............................................. 550
Opener Fuel filler door...................................... 257
Hood ......................................................... 401
Trunk ..........................................................146
Outer foot lights Location..................................................366
Replacing light bulbs........................ 445
Wattage................................................. 558 Outside rear view mirrors ................. 190
Adjusting and folding ........................190
BSM (Blind Spot Monitor) ............. 314
Linked mirror function
when reversing ...................................191
Mirror position memory .................. 178
Outside rear view mirror defoggers ......................................... 352
Outside temperature display ........... 105
Overheating ........................................... 535
Paddle shift switches ........................... 226
Parking assist sensors *
Parking brake......................................... 232 If the parking brake cannot
be released ....................................... 525
Operation ..............................................232
Parking brake engaged warning buzzer............................... 466
Parking brake engaged warning message .......................... 466
PCS (Pre-Crash Safety system)............ 270
Function.................................................. 270
Warning light......................................... 461
Warning message ............................ 466
Personal lights........................................ 367
Pollen removal mode.......................... 352
Power control unit .................................. 80
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