2009 Lexus IS250 engine

74
08_IS350/250_U_(L/O_0808)
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
Press the opener switch.
Turn the fuel tank cap slowly to
open.
Hang the fuel tank cap on the
back of the fuel filler door.
STEP1
STEP2
STEP3

77
1
Before driving
08_IS350/250_U_(L/O_0808)
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
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.

78
1-6. Theft deterrent system
08_IS350/250_U_(L/O_0808)
■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.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. 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.
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.

79
1
1-6. Theft deterrent system
Before driving
08_IS350/250_U_(L/O_0808)
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, wireless 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.
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 functi on 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
115
08_IS350/250_U_(L/O_0808)
2-1. Driving proceduresDriving the vehicle................... 116
Engine (ignition) switch ......... 126
Automatic transmission ......... 131
Manual transmission .............. 137
Turn signal lever ....................... 139
Parking brake ........................... 140
Horn ............................................. 141
2-2. Instrument cluster Gauges and meters ................ 142
Indicators and warning lights ......................................... 148
Multi-information display ...... 151
2-3. Operating the lights and windshield wipers
Headlight switch...................... 156
Fog light switch ........................ 159
Windshield wipers and washer ..................................... 160
Headlight cleaner switch...... 165 2-4. Using other driving
systems
Cruise control.......................... 166
Dynamic radar cruise control ..................................... 170
Intuitive parking assist ........... 180
Driving assist systems ............ 186
PCS (Pre-Collision System) ........ 192
2-5. Driving information Cargo and luggage ................ 196
Vehicle load limits ................... 199
Winter driving tips ................. 200
Trailer towing .......................... 204
Dinghy towing (vehicles with
an automatic
transmission) ........................ 205
Dinghy towing (vehicles with a
manual transmission) ......... 206

116
08_IS350/250_U_(L/O_0808)
2-1. Driving procedures
Driving the vehicle
The following procedures should be observed to ensure safe driving.
■Starting the engine (
P. 126)
■ Driving
Automatic transmission
With the brake pedal depressed, shift the shift lever to D. (
P. 1 3 1 )
Release the parking brake. (
P. 1 4 0 )
Gradually release the brake pedal and gently depress the
accelerator pedal to accelerate the vehicle.
Manual transmission
While depressing the clutch pedal, shift the shift lever into 1. (
P. 1 3 7 )
Release the parking brake. (
P. 1 4 0 )
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, depress 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. 131)
Manual transmission
While depressing the clutch pedal, depress 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 3 7 )
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3
STEP1
STEP2
STEP1
STEP2

117
2-1. Driving procedures
2
When driving
08_IS350/250_U_(L/O_0808)
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, depress the brake pedal.
Set the parking brake. (
P. 1 4 0 )
Shift the shift lever to P. (
P. 1 3 1 )
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
While depressing the clutch pedal, depress the brake pedal.
Set the parking brake. (
P. 1 4 0 )
Shift the shift lever into N. (
P. 1 3 7 )
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

119
2-1. Driving procedures
2
When driving
08_IS350/250_U_(L/O_0808)
CAUTION
■When starting the vehicle
With automatic transmission vehicles, always keep your foot on the brake pedal
while stopped with the engine running. 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
pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal willresult in sudden acceleration that may lead to an accident that could result in
death or serious injury.
• When backing up, you may twist your body around, leading to a difficulty in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly, allowing you to depress the brake and accelerator pedals prop-
erly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay response in an emergency, resulting in an acci-
dent.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
●With automatic transmission vehicles, do not let the vehicle roll backwards while
the shift lever is in a driving position, or roll forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accident or damage to the vehicle.
●If the smell of exhaust is noticed inside the vehicle, open the windows and check
that the trunk is closed. Large amounts of exhaust in the vehicle can cause driver
drowsiness and an accident, resulting in death or a serious health hazard. Have
the vehicle inspected by your Lexus dealer immediately.
●Do not under any circumstances shift the shift lever to P, R or N (vehicles with an
automatic transmission) or R (vehicles with a manual transmission) while the vehi-
cle is moving.
Doing so can cause significant damage to the transmission system and may result
in a loss of vehicle control.
●Do not shift the shift lever to N while the vehicle is moving.
Doing so may cause the engine brake to not operate properly and lead to an
accident.