temperature gauge Lexus IS F 2008 Owner's Manual

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08_IS F_U_(L/O_0711)
2-2. Instrument cluster
Gauges and meters
The units used on the speedometer and the tachometer gauge display may
differ depending on the model/type.

The following gauges, meters and display illuminate when the
“ENGINE START STOP” switch is in IGNITION ON mode.Speedometer
Displays the vehicle speed.
Vo l t a g e g a u g e
Displays the battery voltage. If the voltage is either too high or too low, the
display will flash.
Shift position and shift range/gear display
Displays the shift position along with the currently selected shift range or
gear. (→ P. 120, 122)
Multi-information display
→P. 1 3 5
Engine oil temperature gauge
Displays the engine oil temperature. If the temperature is too high, the dis-
play will flash.
Tachometer
Displays the engine speed in revolutions per minute.

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2-2. Instrument cluster
2
When driving
08_IS F_U_(L/O_0711)
Engine coolant temperature gauge
Displays the engine coolant temperature.
Odometer and trip meter
Odometer: Displays the total distance the vehicle has been driven.
Trip meter: Displays the distance the vehicle has been driven sincethe meter was last reset. Trip meters “A” and “B” can be
used to record and display different distances indepen-
dently.
Fuel gauge
Displays the quantity of fuel remaining in the tank.
Odometer/trip meter and trip meter reset button
Switches between odometer and trip meter displays. Pushing and holding
the button will reset the trip meter when the trip meter is being displayed.

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2-2. Instrument cluster
2
When driving
08_IS F_U_(L/O_0711)
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indi-
cates the maximum engine speed.
●The following may indicate that the engine is overheating. Immediately stop the
vehicle in a safe place. (
→P. 3 9 2 )
• The engine coolant temperature gauge is in the red zone (H)
• The display on the engine oil temperature gauge flashes
■When driving the vehicle
If the display on the voltage gauge starts to flash while the engine is running, it may
indicate that there is a malfunction in the vehicle’s charging system. Have your vehi-
cle inspected by your Lexus dealer.

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5-1. Essential information
08_IS F_U_(L/O_0711)
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
361
5-2. Steps to take in an emergency
08_IS F_U_(L/O_0711)
Stop the vehicle immediately.A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warnings indicate the possibility of damage to
the vehicle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
(Flashing)
Indicates an abnormal engine oil pressure. The warning light may turn on if the engine oil pres-
sure is too low.
(Flashing)
Indicates that the engine oil temperature is too high. The engine oil temperature gauge display will also
flash. ( →P. 1 2 8 )

5
When trouble arises
393
5-2. Steps to take in an emergency
08_IS F_U_(L/O_0711)
■Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone 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 fan 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. 4 0 3 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

441
Alphabetical index
08_IS F_U_(L/O_0711)
Electric power steering ....................... 166
Electronic keyIf the electronic key does not operate properly ............................ 386
Emergency, in case of If the engine will not start ............... 383
If the shift lever cannot be shifted from P ................................... 384
If the vehicle has discharged battery.................................................. 389
If the warning buzzer sounds......350
If the warning light turns on ..........350
If the warning message is displayed ............................................360
If you have a flat tire .........................374
If you lose your keys ........................385
If you think something is wrong................................................... 346
If the electronic key does not operate properly ............................ 386
If your vehicle becomes stuck .... 395
If your vehicle needs to be towed ................................................... 340
If your vehicle overheats................ 392 Engine
ACCESSORY mode......................... 114
Compartment......................................282
Engine switch .......................................... 114
Hood ........................................................ 279
How to start the engine ..................... 114
Identification number ...................... 399
If the engine will not start............... 383
Ignition switch ......................................... 114
Overheating .........................................392
Engine compartment cover .............283
Engine coolant Capacity ................................................ 403
Checking .............................................. 288
Preparing and checking before winter .....................................180
Engine coolant temperature gauge....................................................... 128
Engine immobilizer system.................. 70
Engine oil Capacity .................................................402
Checking ...............................................284
Preparing and checking before winter .....................................180
Engine oil maintenance data............286
EPS .............................................................. 166
Event data recorder ............................348E

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08_IS F_U_(L/O_0711)
What to do if...
What to do if...
A tire puncturesP. 3 74If you have a flat tire
The engine does not start
P. 3 8 3If the engine will not start
P. 7 0Engine immobilizer system
P. 3 8 9If the vehicle battery is discharged
The shift lever cannot be
moved outP. 3 8 4If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 3 9 2If your vehicle overheats
The key is lostP. 3 8 5If you lose your keys
The battery runs outP. 3 8 9If the vehicle battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 3 9 5If the vehicle becomes stuck