2016 Lexus GS450h check engine

4617-2. Steps to take in an emergency
GS450h_OM_OM30E99U_(U)
7
When trouble arises
WA R N I N G
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned of f, check that the indicator on the power
switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fan may suddenly operate even if the gasoline engine stops. Do not touch
or approach rotating parts such as the fa n, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) ge tting caught, resulting in serious injury.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
●Do not loosen the coolant inlet cap or the
coolant reservoir cap while the hybrid system
and radiator are hot.
High temperature steam or coolant could
spray out.

GS450h_OM_OM30E99U_(U)
4698-1. Specifications
8
Vehicle specifications
*: The engine oil capacity is a reference quantity to be used when changing the engineoil. 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. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the following
grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Lubrication system
Oil capacity
(Drain and refill  reference
*)
With filter
Without filter
6.7 qt. (6.3 L, 5.5 Imp.qt.)
6.2 qt. (5.9 L, 5.2 Imp.qt.)

528Alphabetical index
GS450h_OM_OM30E99U_(U)
Eco drive mode ..................................... 256
EDR (Event data recorder) ...................10
Electric motor (traction motor) ......... 66
Electric Power Steering (EPS) ....... 267Function .................................................. 267
Warning light ........................................ 401
Warning message ............................ 406
Electronic key ........................................... 116 Battery-saving function .................... 135
If the electronic key does not operate properly.............................. 451
Replacing the battery ....................... 377
Emergency, in case of If a warning buzzer sounds.......... 400
If a warning light turns on.............. 400
If a warning message is displayed ....................................... 406
If the 12-volt battery is discharged .........................................453
If the electronic key does not operate properly ......... 451
If the hybrid system will not start........................................446
If the parking brake cannot be released........................449
If the shift lever cannot be shifted from P ........... 448
If you have a flat tire .......................... 437
If you think something is wrong.............................................. 399
If your vehicle becomes stuck ..... 462
If your vehicle has to be stopped in an emergency .............................393
If your vehicle needs to be towed .......................................394
If your vehicle overheats ................ 457 Emergency flashers ............................ 392
Energy monitor ...................................... 108
Engine
Accessory mode .................................. 181
Compartment ..................................... 349
Engine switch ....................................... 180
Hood........................................................ 347
How to start the hy brid system ... 180
Identification number ....................... 467
Ignition switch (power switch) ................................. 180
Overheating......................................... 457
Power switch ........................................ 180
Engine compartment cover............. 350
Engine coolant ...................................... 354 Capacity ................................................... 471
Checking ............................................... 354
Preparing and checking before winter .....................................274
Engine coolant temperature gauge ........................................................ 86
Engine oil ................................................... 351 Capacity ................................................. 469
Checking .................................................351
Oil level warning message ...........406
Oil pressure warning message...........................406
Preparing and checking before winter .....................................274
Engine oil maintenance data ........... 340
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