engine Lexus IS F 2011 Repair Manual

161
2
When driving
IS F_EE
2-2. Instrument cluster
Gauges and meters
The units used on the speedometer, tachometer gauge display and
multi-information 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.
Engine coolant temperature gauge
Displays the engine coolant temperature. If the temperature is too
high, the display will flash.
Engine oil temperature gauge
Displays the engine oil temperature. If the temperature is too high,
the display will flash.
Odometer and trip meter
Odometer: Displays the total distance the vehicle has been driven.
Trip meter:Displays the distance the vehicle has been driven since
the meter was last reset. Trip meters “A” and “B” can be
used to record and display different distances inde-
pendently.
Multi-information display
P. 167
Tachometer

163
2-2. Instrument cluster
2
When driving
IS F_EE
Changing units for the digital speedometer (right-hand drive vehicles only)
Units for the digital speedometer can be changed between km/h and mph by
pushing and holding the odometer/trip meter reset button while the odome-
ter is displayed. At this time, all the units for the multi-information display
will also change.
CAUTION
When the temperature of the display is extremely low
Allow the interior of the vehicle to warm up before using the shift position
and shift range/gear display. At extremely low temperatures, the display
may respond slowly, and display changes may be delayed.
For example, there is a lag between the driver’s downshifting and the new
gear number appearing on the display. In this case, wait until the display
changes and take care not to downshift again, causing rapid and excessive
engine braking and possibly an accident resulting in death or serious injury.
NOTICE
To prevent damage to the engine and its components
Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
The following may indicate that the engine is overheating. Immediately
stop the vehicle in a safe place. (P. 465)
• The display on the engine coolant temperature gauge flashes
• The display on the engine oil temperature gauge flashes

165
2-2. Instrument cluster
2
When driving
IS F_EE
Indicators
The indicators inform the driver of the operating state of the
vehicle’s various systems.
*1:These lights turn on when the “ENGINE START STOP” switch
is turned to IGNITION ON mode to indicate that a system check
is being performed. They will turn off after the engine is started,
or after a few seconds. There may be a malfunction in a system if
a light does not come on, or if the lights do not turn off. Have the
vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, for details.
*2Th li ht fl h t i di t th t th t i ti
Turn signal indicator
(P. 159)Cruise control indicator
(P. 180, 184)
Headlight high beam
indicator (P. 172)
(if
equipped)
Lexus parking assist-
sensor indicator (P.
199)
Tail light indicator
(P. 172)Slip indicator (P.
206)
Front fog light indicator
(P. 175)VSC off indicator
(P. 206)
Rear fog light indicator
(P. 175)“TRC OFF” indicator
(P. 206)
“SNOW” indicator
(P. 152)SRS airbag on-off indi-
cator (P. 135)
“SPORT” indicator
(P. 152, 207)“DRL OFF” indicator
(P. 173)
*1,
*
*
*

166
2-2. Instrument cluster
IS F_EE
CAUTION
If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the engine, this could mean that these systems are
not available to help protect you in an accident, which could result in death
or serious injury. Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional, immedi-
ately if this occurs.
Warning lights
Warning lights inform the driver of malfunctions in any of the
vehicle’s systems. (P. 425)
*:These lights turn on when the “ENGINE START STOP” switch is
turned to IGNITION ON mode to indicate that a system check is
being performed. They will turn off after the engine is started, or
after a few seconds. There may be a malfunction in a system if a
light does not come on, or if the lights do not turn off. Have the
vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional for details
(if equipped)(for
driver)(for front
passen-
ger)
*****
****

168
2-2. Instrument cluster
IS F_EE
Trip information
Display items can be switched
by pushing the “DISP” switch.
Outside temperature
Driving range
Displays the outside air temperature.
The temperature range that can be displayed is
from -40C (-40F) to 50C (122F).
When the temperature drops to 3C (37F), the digits
of the display will flash for 10 seconds.
Displays the estimated maximum distance that
can be driven with the quantity of fuel remain-
ing.
• This distance is computed based on your aver-
age fuel consumption. As a result, the actual
distance that can be driven may differ from that
displayed.
• When only a small amount of fuel is added to
the tank, the display may not be updated.
When refueling, turn the “ENGINE START
STOP” switch off. If the vehicle is refueled
without turning the “ENGINE START STOP”
switch off, the display may not be updated.

169
2-2. Instrument cluster
2
When driving
IS F_EEAverage fuel consumption
Average fuel consumption after refueling
Current fuel consumption
Average vehicle speedDisplays the average fuel consumption since the
function was reset.
• The function can be reset by pushing the
“DISP” switch for longer than one second when
the average fuel consumption is displayed.
• Use the displayed average fuel consumption as
a reference.
Displays the average fuel consumption since the
vehicle was last refueled.
Use the displayed average fuel consumption as a
reference.
Displays the current rate of fuel consumption.
Displays the average vehicle speed since the
engine was started or the function was reset.
The function can be reset by pushing the “DISP”
switch for longer than one second when the aver-
age vehicle speed is displayed.

171
2-2. Instrument cluster
2
When driving
IS F_EE
CAUTION
The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.
For example, there is a lag between the driver's downshifting and the new
gear number appearing on the display. In this case, wait until the display
changes and take care not to downshift again, causing rapid and excessive
engine braking and possibly an accident resulting in death or serious injury.

172
IS F_EE
2-3. Operating the lights and windshield wipers
Headlight switch
Turning on the high beam headlights
With the headlights on, push
the lever forward to turn on
the high beams.
Pull the lever back to the center
position to turn the high beams
off.
Pull the lever toward you to
turn on the high beams.
Release to turn them off. You
can flash the high beams with
the headlights on or off.
The headlights can be operated manually or automatically.
The front position, tail,
license plate and
instrument panel lights
turn on.
The headlights and all
lights listed above turn
on.
The headlights, front
position lights and
other lights turn on
and off automatically.
(When the “ENGINE
START STOP” switch
is in IGNITION ON
mode)

173
2-3. Operating the lights and windshield wipers
2
When driving
IS F_EE
Daytime running light system
To make your vehicle more visible to other drivers, the front posi-
tion lights turn on automatically (at a increased intensity) when-
ever the engine is started. Daytime running lights are not designed
for use at night.
Deactivating daytime running light
How to switch: P. 333
“DRL OFF” turns on when the daytime running light is deacti-
vated.
Headlight control sensor
Automatic light off system
When the light switch is in : The headlights turn off automatically
if the “ENGINE START STOP” switch is switched to ACCESSORY
mode or turned OFF.
When the light switch is in “AUTO”: The headlights and tail lights turn
off automatically if the “ENGINE START STOP” switch is switched to
ACCESSORY mode or turned OFF and the driver's door is opened.
To turn the lights on again, switch to IGNITION ON mode, or turn the light
switch off once and then back to
or .
The sensor may not function properly if
an object is placed on the sensor, or any-
thing that blocks the sensor is affixed to
the windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction

174
2-3. Operating the lights and windshield wipers
IS F_EE
Light reminder buzzer
A buzzer sounds when the “ENGINE START STOP” switch is turned OFF
or switched to ACCESSORY mode and the driver's door is opened while the
lights are turned on.
Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the num-
ber of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users.
Customization that can be configured at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
Settings of the light sensor sensitivity can be changed.
(Customizable features P. 484)
NOTICE
To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not run-
ning.