engine coolant Lexus GS350 2016 Owner's Guide

5317-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
■When adding engine coolant (GS350/GS200t)
Add coolant in accordance with the following procedure. Remove caps A and B.
Add engine coolant through the inlet of cap A up to the “[AR/GR] B” line, and then
install cap A.
Add engine coolant through the inlet of cap B until it is full, and then install cap B.
GS200t only: When installing cap B, apply coolant to the O-ring on the end of cap B.
Cap A
Cap B
“[AR/GR] B” line (Target fill line)
1
2
3
GS350 GS200t
1
2
3

5327-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
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.
●Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury.
●GS350: Do not loosen the coolant inlet cap
or the engine coolant reservoir cap while the
engine and radiator are hot.
High temperature steam or coolant could
spray out.
●GS F: Do not loosen the engine coolant res-
ervoir cap while the engine and radiator are
hot.
High temperature steam or coolant could
spray out.
●GS200t: Do not loosen the coolant inlet cap,
the engine coolant reservoir cap or the inter-
cooler coolant reservoir cap while the engine
and radiator are hot.
High temperature steam or coolant could
spray out.

5337-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine.
■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.

GS350_200t_GS F_OM_OM30E86U_(U)
5478-1. Specifications
8
Vehicle specifications
Cooling system
Capacity
GS3509.9 q t . ( 9.4 L , 8 . 3 I m p.q t . )
GS200t
Engine coolant
9.7 q t . ( 9. 2 L , 8 .1 I m p.q t . )
Intercooler
2.3 qt.(2.2 L, 1.9 Imp.qt.)
GS F11.9 qt. (11.3 L, 9.9 Imp.qt.)
Coolant typeUse either of the following: • “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
GS350GS200tGS F
Spark plug
Make
GapDENSO
FK20HBR8
0.031 in. (0.8 mm)NGK
DILFR7K9G
0.04 in. (0.9 mm)DENSO
FK20HBR-J8
0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

GS350_200t_GS F_OM_OM30E86U_(U)
5638-1. Specifications
8
Vehicle specifications
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underinflation, or excessiv e loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pressure
Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more than 1
mile or 1.5 km un der that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire may
be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a manu-
facturer
Accessory weight
The combined weight (in excess of those standard items
which may be replaced) of automatic transmission,
power steering, power brakes, power windows, power
seats, radio and heater, to the extent that these items are
available as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air co nditioning and additional
weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the numb er of occupants specified
in the second column of Table 1
* that follows

608Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Eco drive mode ..................................... 293
Eco Driving Indicator............................. 85
Eco driving meter .................................... 92
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 309Function ................................................. 309
Warning light .......................................453
Warning message ............................ 459
Electronic key ..........................................132 Battery-saving function .................... 152
If the electronic key does not operate properly............................ 520
Replacing the battery ....................... 429
Emergency, in case of If a warning buzzer sounds...........452
If a warning light turns on...............452
If a warning message is displayed ....................................... 459
If the electronic key does not operate properly ....... 520
If the engine will not start................. 515
If the parking brake cannot be released......................... 518
If the shift lever cannot be shifted from P ............. 517
If the vehicle battery is discharged .........................................523
If you have a flat tire ............... 491, 502
If you think something is wrong.............................................. 450
If your vehicle becomes stuck .....534
If your vehicle has to be stopped in an emergency .............................443
If your vehicle needs to be towed .......................................444
If your vehicle overheats ............... 528 Emergency flashers .............................442
Emergency tire puncture repair
kit ............................................................. 502
Engine Accessory mode ................................ 198
Compartment ..................................... 396
Engine switch ........................................ 197
Hood........................................................ 393
How to start the engine.................... 197
Identification number .......................540
Ignition switch (engine switch.................................... 197
Overheating.........................................528
Engine compartment cover............. 399
Engine coolant ...................................... 406 Capacity ................................................. 547
Checking ...............................................406
Preparing and checking before winter ......................................316
Engine coolant temperature gauge ................................................ 86, 94
Engine immobilizer system .................. 72
Engine oil ................................................... 401 Capacity ................................................. 542
Checking .................................................401
Oil level warning message ........... 459
Oil pressure warning message........................... 459
Preparing and checking before winter ......................................316
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