engine Lexus IS250 2008 Do-it-yourself maintenance / LEXUS 2008 IS250 (OM53699U) Owner's Guide

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1-4. Opening and closing the windows and moon roof
1
Before driving
■Operating the power windows after turning the “ENGINE START STOP” switch
OFF
The power windows can be operated for approximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. They cannot, however, be operated once either front door is opened.
■Jam protection function
If an object becomes caught between th e window and the window frame, window
travel is stopped and the window is opened slightly.
■When the battery is disconnected
The power windows must be initialized in order to ensure proper operation. (Per-
form for each window with the switch for each seat.)
Open the window halfway.
Fully close the window by pulling the switch up and continue holding the
switch for one second.
The indicator on the switch changes from a flashing pattern to being on when initial
settings are complete.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operatio n) can be changed. (Customizable features
 P. 4 3 6 )
CAUTION
■Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.
●Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in some
instances, even death.
■Jam protection function
●Never try jamming any part of your body to activate the jam protection function
intentionally.
●The jam protection function may not work if something gets caught just before
the window fully closes.
STEP1
STEP2

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1-4. Opening and closing the windows and moon roof
1
Before driving
■The moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key. (P. 3 9 4 )
●The moon roof can be opened using the wireless remote control. ( P. 3 4 )
■Operating the moon roof after turning the “ENGINE START STOP” switch OFF
The moon roof can be operated for ap proximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. It cannot, however, be operated once either front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■If the moon roof can not be closed
Pressing the switch of at for more th an 10 seconds closes the moon roof.
■To reduce moon roof wind noise
●Drive with the moon roof switch in when you open and close the moon
roof manually.
●Drive with the moon roof where it has stopped when opening automatically.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed. (Customizable features
 P. 4 3 6 )

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1
Before driving
1-5. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap.
■Before refueling the vehicle
Turn the “ENGINE START STOP” switch OFF and ensure that all
the doors and windows are closed.
■ Opening the fuel tank cap
Open the fuel filler door.
Turn the fuel tank cap slowly to
open.
Hang the fuel tank cap on the
back of the fuel filler door.
STEP1
STEP2
STEP3

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1-6. Theft deterrent system
Engine immobilizer system
■System maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
■Certifications for the engine immobilizer system For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.

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1-6. Theft deterrent system
1
Before driving
CAUTION
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
NOTICE
■To prevent damage to the key
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

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1-6. Theft deterrent system
Alarm
The system sounds the alarm and flashes lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote door lock function
or mechanical key with the alarm being set.
● The hood is opened with the alarm being set.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors using
the entry function, wireless
remote door lock function or
mechanical key.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors or trunk using the entry function, wireless
remote door lock function or mechanical key.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode. (The alarm will be deactivated or stopped
after a few seconds.)

When driving2
107
2-1. Driving procedures ....... 108Driving the vehicle................. 108
Engine (ignition) switch .......... 117
Automatic Transmission ........ 122
Manual Transmission.............. 126
Turn signal lever ....................... 128
Parking brake ........................... 129
2-2. Instrument cluster ......... 130 Gauges and meters ................ 130
Indicators and warning lights ......................................... 136
Multi-information display ...................................... 139
2-3. Operating the lights and windshield wipers......... 143
Headlight switch...................... 143
Fog light switch ........................ 146
Windshield wipers and washer ..................................... 147
Headlight cleaner switch....... 151 2-4. Using other driving
systems .......................... 152
Cruise control.......................... 152
Dynamic radar cruise control ..................................... 155
Intuitive parking assist ........... 164
Driving assist systems ............ 170
PCS (Pre-Collision System) ........ 176
2-5. Driving information........ 179 Cargo and luggage ................. 179
Vehicle load limits ................... 182
Winter driving tips .................. 183
Trailer towing ........................... 187
Dinghy towing (vehicles with an automatic
transmission) ......................... 188
Dinghy towing (vehicles with a manual
transmission) ......................... 189

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2-1. Driving procedures
Driving the vehicle
The following procedures should be observed to ensure safe driving.
■Starting the engine ( P. 1 1 7 )
■ Driving
Automatic transmission
With the brake pedal depressed, shift the shift lever to D. (P. 122)
Release the parking brake. ( P. 1 2 9 )
Gradually release the brake peda l and gently push the accel-
erator pedal to accelerate the vehicle.
Manual transmission
With the clutch pedal fully depressed, shift the shift lever into 1. (P. 1 2 6 )
Release the parking brake. ( P. 1 2 9 )
Gradually release the clutch pedal. At the same time, gently
depress the accelerator pedal to accelerate the vehicle.
■ Stopping
Automatic transmission
With the shift lever in D, push the brake pedal.
If necessary, set the parking brake.
When the vehicle is stopped for an extended period of time, shift the
shift lever to P or N. (
P. 122)
Manual transmissionWith the clutch pedal fully depressed, push the brake pedal.
If necessary, set the parking brake.
When the vehicle is stopped for an extended period of time, shift the
shift lever into N. (
P. 1 2 6 )
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3
STEP1
STEP2
STEP1
STEP2

109
2-1. Driving procedures
2
When driving
Starting on a steep uphillAutomatic transmission Firmly set the parking brake and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Manual transmission
With the parking brake firmly set and the clutch pedal fully
depressed, shift the shift lever into 1.
Lightly depress the accelerator pedal at the same time as gradu-
ally releasing the clutch pedal.
Release the parking brake.
■ Parking the vehicle
Automatic transmission
With the shift lever in D, push the brake pedal.
Set the parking brake. ( P. 1 2 9 )
Shift the shift lever to P. ( P. 122)
Press the “ENGINE START STOP” switch and stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
Manual transmission With the clutch pedal fully depressed, push the brake pedal.
Set the parking brake. ( P. 1 2 9 )
Shift the shift lever into N. ( P. 1 2 6 )
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3

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2-1. Driving procedures
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows
may become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, because the road surface will be especially
slippery.
●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.
■Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recommended to
observe:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake sys-
tem needs bedding-down of the brake shoe s periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
correct fuel. ( P. 4 0 9 )
■Normal characteristics after turning off the engine
Approximately five hours after the engine is turned off, you may hear sound coming
from under the vehicle for several minutes. This is because fuel evaporation leakage
check is performed. It does not indicate a malfunction.