Fuel system Lexus IS300h 2017 User Guide

1102. Instrument cluster
IS300h_EE(OM53D89E)
■Tachometer
Hybrid System Indicator switches to the tachometer when driving mode is in sport mode.
The settings of the tachometer display can be changed on the multi-information display.
( P. 119)
■Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help improve fuel
efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even when vehicle operation and driving conditions are the same.
■Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or the display may take longer than normal to change.
●When stopped, or driving at low sp eeds (less than 20 km/h [12 mph])
●When the outside temperature has changed suddenly (at the entrance/exit of a garage, tunnel, etc.)
■Pop-up display
●In some situations, such as when a switch operation is performed, a pop-up display will be temporarily displayed on the multi-info rmation display or the odometer/trip meter
screen (F SPORT models).
●Some pop-up displays can be set on/off. ( P. 119)
■Customization
The meter display can be customized on the multi-information display. (P. 119)
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 engine may be overheating if the engine coolant temperature gauge is in the red zone (H). In this case, immediately stop the vehicle in a safe place, and check the
engine after it has cooled completely. ( P. 636)

1162. Instrument cluster
IS300h_EE(OM53D89E)
F SPORT models: Some drive information items can only be displayed when the
main meter is in the center position or when it is moved to the right.
■Drive information 1/Drive information 2/Drive information 3
Displays drive information such as the following.
F SPORT models (when the main meter is in the center position): Each item is dis-
played separately.
●Drive information 1
• Current fuel consumption
• Average fuel economy (after reset)
●Drive information 2
• Distance (driving range)
• Average vehicle speed (after reset)
●Drive information 3
• Average fuel economy (after refuel)
• Elapsed time (after start)
Displayed items (listed below) can be changed on . ( P. 119)
Drive information ( )
ItemContent
Current fuel consumption Displays in stantaneous current fuel consumption
Average fuel
economy
After resetDisplays average fuel consumption since display
reset*1, 2
After startDisplays average fuel consumption since hybrid
system start*2
After refuelDisplays average fuel consumption since refuel*2, 3
Average
vehicle speed
After resetDisplays average vehicle speed since display
reset*1
After startDisplays average vehicle speed since hybrid sys-
tem start
Elapsed timeAfter resetDisplays elapsed time since display reset*1
After startDisplays elapsed time since hybrid system start
DistanceDriving rangeDisplays driving range with remaining fuel*3, 4
After startDisplays drive distance since vehicle start
OtherBlankNo item

1302. Instrument cluster
IS300h_EE(OM53D89E)
■Trip information
Lexus Display Audio screen
Press the “MENU” button on the Lexu s Display Audio controller, and then
select “Car” on the “MENU” screen.
If the “Trip information” screen does not appear, move the controller to the right
and select “Trip information”.
Fuel consumption in the past 15
minutes
Current fuel consumption
Regenerated energy in the past
15 minutes
One symbol indicates 50 Wh.
Up to 5 symbols are shown.
Average vehicle speed since the
hybrid system was started.
Elapsed time since the hybrid system was started.
Cruising range ( P. 133)
Fuel consumption
1
2
3
4
5
6

1312. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53D89E)
10.3-inch display
Press the “MENU” button on the Remote Touch, and then select on the
“Menu” screen.
If the “Energy monitor” or “Past record” sc reen is displayed, select “Trip informa-
tion”.
Resetting the consumption data
Fuel consumption in the past 15
minutes
Current fuel consumption
Regenerated energy in the past
15 minutes
One symbol indicates 50 Wh.
Up to 5 symbols are shown.
Average vehicle speed since the hybrid system was started.
Elapsed time since the hybrid system was started.
Cruising range ( P. 133)
Average fuel consumption for the past 15 minutes is divided by color into past
averages and averages attained since the power switch was last turned to ON
mode. Use the displayed average fuel consumption as a reference.
The image is an example only.
1
2
3
4
5
6
7

1332. Instrument cluster
2
Instrument cluster
IS300h_EE(OM53D89E)
■Updating the past record data
Vehicles with a Lexus Display Audio system
Update the average fuel consumption by mo ving the controller to the left and select “Update” to measure the curre nt fuel consumption again.
Vehicles with a 10.3-inch display
Update the average fuel consumption by selecting “Update” to measure the current fuel consumption again.
■Resetting the data
Vehicles with a Lexus Display Audio system
The fuel consumption data can be deleted by moving the controller to the left and select
“Clear”.
Vehicles with a 10.3-inch display
The fuel consumption data can be deleted by selecting “Clear”.
■Cruising range
Displays the estimated maximum distance that can be driven with the quantity of fuel remaining.
This distance is computed based on your average fuel consumption.
As a result, the actual distance that can be driven may differ from that displayed.

1342. Instrument cluster
IS300h_EE(OM53D89E)
Vehicle information can be displayed on the side display (P. 465), then select
“ ” or “” to select the desired screen.
Fuel consumption
Displays the average fuel consumption
and regenerated energy for the past 10
minutes in 1 minute intervals, as well as
the cruising range.
Past record
Displays the average fuel consumption
and highest fuel consumption.
Trip information
Displays the cruising range, average
fuel consumption and the amount of
time elapsed since the hybrid system
was started.
Using the side display (vehicles with a 10.3-inch display)

201
4Driving
IS300h_EE(OM53D89E)
4-1. Before driving
Driving the vehicle .....................202
Cargo and luggage ...................209
Trailer towing (vehicles
without a towing
package) ...................................... 210
Trailer towing (vehicles with
a towing package) ..................... 211
4-2. Driving procedures
Power (ignition) switch ............. 219
EV drive mode ............................ 224
Hybrid transmission .................. 226
Turn signal lever .........................233
Parking brake ..............................235
ASC
(Active Sound Control)........ 236
4-3. Operating the lights
and wipers
Headlight switch ......................... 237
Automatic High Beam .............240
Fog light switch ........................... 244
Windshield wipers and
washer .........................................245
4-4. Refueling
Opening the fuel tank cap......253
4-5. Using the driving support
systems
Lexus Safety System+ .............. 257
PCS (Pre-Collision
System) ....................................... 265
LDA (Lane Departure Alert
with steering control) ............ 279
RSA (Road Sign Assist) ..........288
Dynamic radar cruise
control ......................................... 293
Cruise control .............................305
Lexus parking
assist-sensor..............................309
Lexus parking assist
monitor ......................................... 318
BSM
(Blind Spot Moni tor) ............. 334
• BSM function.........................340
• RCTA function...................... 343
Driving mode select
switch ...........................................348
Driving assist systems .............. 352
4-6. Driving tips
Hybrid vehicle
driving tips..................................358
Winter driving tips ...................... 361

2034-1. Before driving
4
Driving
IS300h_EE(OM53D89E)
■When starting off on an uphill
The hill-start assist control will activate. ( P. 352)
■For fuel-efficient driving
Keep in mind that hybrid vehicles are simila r to conventional vehicles, and it is necessary
to refrain from activities su ch as sudden acceleration. (P. 358)
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows may
become fogged-up, and th e road will be slippery.
●Drive carefully when it starts to rain, because the road surface will be especially slip- pery.
●Refrain from high speeds when driving on an expressway in the rain, because there may
be a layer of water between the tires and the road surface, preventing the steering and brakes from operating properly.
■Restraining the hybrid system ou tput (Brake Override System)
●When the accelerator and brake pedals are depressed at the same time, the hybrid sys- tem output may be restrained.
●A warning message is displaye d on the multi-information display while the system is
operating. If a warning message is shown on the multi-information display, read the message and follow the instructions.
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the acce lerator pedal depressed, a warning message appears on the multi-information display. ( P. 595)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
●While Drive-Start Control is being activated, your vehicle may have trouble escaping
from the mud or fresh snow. In such case, deactivate TRC ( P. 354) to cancel Drive-
Start Control so that the vehicle may become able to escape from the mud or fresh snow.
■Breaking in your new Lexus
To extend the life of the vehicle, observin g the following precautions is recommended:
●For the first 300 km (186 miles):
Avoid sudden stops.
●For the first 800 km (500 miles):
Do not tow a trailer.
●For the first 1000 km (621 miles):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration. • Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.

2044-1. Before driving
IS300h_EE(OM53D89E)
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parkin g brake system. This type of brake system needs bedding-down of the brake shoes peri odically or whenever the parking brake
shoes and/or drum are replaced. Have any au thorized Lexus retailer or Lexus authorized
repairer, or any reliable repairer, perform the bedding down operation.
■Operating your vehicle in a foreign country
Comply with the relevant vehi cle registration laws and confirm the availability of the cor-
rect fuel. ( P. 646)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY” indicator is
illuminated. This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator ped-
als to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty in oper-
ating the pedals. Make sure to operate the pedals properly. • Make sure to keep a correct driving po sture even when moving the vehicle only
slightly. This allows you to depress the brake and accelerator pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay re sponse in an emergency, resulting in an accident.
●The driver should pay extra attention to pedestrians when the vehicle is powered only by the electric motor (traction motor). As there is no engine noise, the pedestrians
may misjudge the v ehicle’s movement.
●Do not drive the vehicle over or stop the vehicle near flammable materials. The exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the hybrid system. Turning the hybrid system off while driving will not cause loss of steering or braking control, however, power assist
to the steering will be lost. This will make it more difficult to steer smoothly, so you
should pull over and stop the vehicle as soon as it is safe to do so. In the event of an emergency, such as if it becomes impossible to stop the vehicle in
the normal way: P. 567
●Use engine braking (downshift) to maintain a safe speed when driving down a steep hill.
Using the brakes continuously may cause th e brakes to overheat and lose effective-
ness. ( P. 226)

2254-2. Driving procedures
4
Driving
IS300h_EE(OM53D89E)
■Switching to EV drive mode when the gasoline engine is cold
If the hybrid system is started while the gasoline engine is cold, the gasoline engine will start automatically after a short period of time in order to warm up. In this case, you will
become unable to switch to EV drive mode.
After the hybrid system has started and the “READY” indicator has illuminated, press the EV drive mode switch before the gasoline en gine starts to switch to EV drive mode.
■Automatic cancelation of EV drive mode
When driving in EV drive mode, the gasoline engine may automatically restart in the fol- lowing situations. When EV dr ive mode is canceled, a buzzer will sound and the EV drive
mode indicator will flash and go off.
●The hybrid battery (traction battery) becomes low. The remaining battery level indicated in the “Energy monitor” display is low.
( P. 128)
●Vehicle speed is high.
●The accelerator pedal is depressed firmly or the vehicle is on a hill, etc.
■Possible driving distance when driving in EV drive mode
EV drive mode’s possible driving distance ranges from a few hundred meters to approxi- mately 2 km (1.2 mile). Howe ver, depending on vehicle conditions, there are situations
when EV drive mode cannot be used.
(The distance that is possible depends on th e hybrid battery [traction battery] level and driving conditions.)
■Fuel economy
The hybrid system is designed to achieve the best possible fuel economy during normal driving (using the gasoline engine and electr ic motor [traction motor]). Driving in EV
drive mode more than necess ary may lower fuel economy.
WARNING
■Caution while driving
When driving in EV drive mode, pay special attention to the area around the vehicle.
Because there is no engine noise, pedestrians, people riding bicycles or other people
and vehicles in the area may not be aware of the vehicle starting off or approaching them, so take extra care while driving.