coolant Lexus IS F 2014 User Guide

5
When trouble arises
467
5-1. Essential information
IS F_U
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points
higher than normal
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

5
When trouble arises
511
5-2. Steps to take in an emergency
IS F_U
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fans are not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.
If the engine compartment
cover needs to be removed:
→P. 4 0 4
STEP1
STEP2
STEP3
STEP4

512
5-2. Steps to take in an emergency
IS F_U
■Overheating
If you observe the following, your vehicle may be overheating.
●The display on the engine coolant temperature gauge flashes or a loss of power
is experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●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, causing serious
injury such as burns.
●Keep hands and clothing away from the fans and belt while the engine is running.
●Do not loosen the coolant reservoir cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (→P. 5 2 3 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5

5
When trouble arises
513
5-2. Steps to take in an emergency
IS F_U
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.

523
6-1. Specifications
6
Vehicle specifications
IS F_U
Oil viscosity (5W-30 is explained here as an example):
• The 5W in 5W-30 indicates the characteristic of the oil which allows coldstartability. Oils with a lower value before the W allow for easier starting of
the engine in cold weather.
• The 30 in 5W-30 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubricant Standardization and Approval Com-
mittee) Certification Mark is added to some oil containers to help you
select the oil you should use.
Cooling system
Capacity12.6 qt. (11.9 L, 10.5 Imp. qt.)
Coolant type
Use 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.

538
6-1. Specifications
IS F_U
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning 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 number of occupants speci-
fied in the second column of Table 1
* that follows
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Tire related termMeaning

572
Alphabetical index
IS F_U
Daytime running light system ........... 168
Defogger*Rear window........................................ 232
Side mirrors .......................................... 232
Dimension ................................................. 518
Dinghy towing ......................................... 221
Display Dynamic radar crui se control ........ 181
Satellite switch mode .......................348
Trip information .................................... 162
Warning message............................. 479
Do-it-yourself maintenance ............. 397
Door courtesy lights Door courtesy lights......................... 334
Wattage..................................................528
Door pockets..........................................344
Doors Door lock.................................32, 43, 46
Door windows ....................................... 78
Side mirrors ............................................. 76
Driver's seat belt reminder light ..... 472
Driving Correct posture .................................... 94
Procedures .............................................128
Driving position memory ...................... 56
Electric power steering ....................... 201
Electronic key If the electronic key does not operate properly ........................... 505
Emergency flashers Switch ......................................................460
Emergency, in case of If a warning message is
displayed ............................................ 479 If the electronic key does not
operate properly............................505
If the engine will not start ............... 502
If the shift lever cannot be shifted from P................................... 503
If the vehicle has a discharged
battery .................................................508
If the warning buzzer sounds...... 469
If the warning light turns on.......... 469
If you have a flat tire ........................ 493
If you lose your keys ........................ 504
If you think something is
wrong ...................................................467
If your vehicle becomes stuck ...... 514
If your vehicle has to be stopped in an emergency ...........515
If your vehicle needs to be towed ..................................................... 461
If your vehicle overheats....................511
Engine
ACCESSORY mode....................... 138
Compartment ..................................... 403
Engine switch ........................................ 138
Hood ....................................................... 400
How to start the engine ................... 138
Identification number ........................ 519
If the engine will not start ............... 502
Ignition switch ....................................... 138
Overheating ............................................511
Engine compartment cover ............. 404
Engine coolant Capacity ................................................ 523
Checking............................................... 409
Preparing and checking
before winter...................................... 218D
E

573
Alphabetical index
IS F_U
Engine coolant temperature gauge ....................................................... 154
Engine immobilizer system ................. 88
Engine oil Capacity................................................. 522
Checking ............................................... 406
Preparing and checking before winter ...................................... 218
EPS............................................................... 201
Event data recorder................................ 22
First-aid kit storage belt......................362
Floor mat.................................................... 361
Fluid Brake ...........................................................411
Washer ..................................................... 416
Fog lights Switch ........................................................ 170
Footwell lights........................................ 334
Front fog lights Switch ........................................................ 170
Front passenger occupant
classification system ......................... 108
Front passenger's seat belt
reminder light ...................................... 472
Front seats
Adjustment .............................................. 55
Driving position memory ................. 56
Seat position memory ........................ 60
Front turn signal lights
Switch ..........................................................151
Wattage ................................................. 528 Fuel
Capacity .................................................. 521
Fuel gauge.............................................. 154
Fuel pump shut off system............ 468
Gas station information ................. 584
Information ............................................529
Refueling................................................... 85
Fuel door .....................................................85
Fuel filler door ...........................................85
Fuel pump shut off system.................468
Fuses ..........................................................438
Garage door opener ..........................365
Gas station information......................584
Gauges ...................................................... 154
Glove box ................................................339
Glove box light ......................................339
Hands-free system for mobile phone* ...................................................303
Hazard lights Switch...................................................... 460
Head restraints Adjusting .................................................. 62
Headlight aim ......................................... 452
Headlight cleaner ...................................176
Headlights Discharge headlight
precautions....................................... 458
Replacing light bulbs ........................454
Switch........................................................ 166
Wattage ................................................. 528
F
G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.