info Lexus IS250 2008 Workshop Manual

137
2-2. Instrument cluster
2
When driving
08_IS350/250_U_(L/O_0708)
■Indicators
The indicators inform the driver of the operating state of the vehi-
cle’s various systems.
Turn signal indicator
(
→P. 1 2 8 )(vehicles with
an automatic
transmission)
“ECT SNOW” indicator
(
→P. 1 2 3 )
Headlight high beam indi-
cator (
→P. 1 4 3 )(vehicles with
a manual
transmission)
“ETCS SNOW” indicator
(
→P. 1 2 6 )
(U.S.A.)
Headlight indicator
(
→P. 1 4 3 )(vehicles with
an automatic
transmission)
“ECT PWR” indicator
(
→P. 1 2 3 )
(CANADA)
Tail light indicator
(
→P. 1 4 3 )
Cruise control indicator
(
→P. 1 5 2 )
Front fog light indicator
(
→P. 1 4 6 ) (if equipped)
“AFS OFF” indicator light
(
→P. 144)
(vehicles with an automatic trans-
mission)
Shift position and shift range indica-
tors (
→P. 122)
(if equipped)
Intuitive parking assist
indicator (
→P. 1 6 4 )
Slip indicator (→P. 171)
“VSC OFF” indicator
(
→P. 1 7 2 )
SRS airbag on-off indica-
tor (
→P. 9 0 )
*
*
*
*

138
2-2. Instrument cluster
08_IS350/250_U_(L/O_0708)
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 your Lexus dealer immediately if this occurs.
■Warning lights
Warning lights inform the driver of malfunctions in any of the vehi-
cle’s systems. (→P. 360)
*: These lights turn on when the “ENGINE START STOP” switch is turned
to IGNITION ON mode to indicate that a system check is being per-
formed. They will turn off after the engine is started, or after a few sec-
onds. 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 your Lexus
dealer.
(U.S.A.)(Canada)(Canada)(U.S.A.)
(Canada)(U.S.A.)(if equipped)
******
******

139
2-2. Instrument cluster
2
When driving
08_IS350/250_U_(L/O_0708)
Multi-information display
The multi-information display presents the driver with a variety of driving-
related data, including the current outside air temperature.
●Trip information ( →P. 1 4 0 )
Displays driving range, fuel con-
sumption and other cruising
related information.
●Satellite switch mode display
(→P. 245)
This switch is used to configure
various function settings.
●Intuitive parking assist dis-
play (if equipped)
Automatically displayed when
using intuitive parking assist.
●Dynamic radar cruise con-
trol display (if equipped)
(→P. 1 5 5 )
Automatically displayed when
using dynamic radar cruise con-
trol.
●Warning messages
(→P. 369)
Automatically displayed when a
malfunction occurs in one of the
vehicle’s systems.

140
2-2. Instrument cluster
08_IS350/250_U_(L/O_0708)
Trip informationWithout navigation system Display items can be switched by
pushing the “DISP” switch.
With navigation system
■ Outside temperature
Displays the outside air temperature.
The temperature range that can be displayed is from
-40
°F (40°C) to 122°F (50°C).
When the temperature drops to 37°F (3°C), the dig-
its of the display will flash for 10 seconds.

142
2-2. Instrument cluster
08_IS350/250_U_(L/O_0708)■
Gear position display
(vehicles with an automatic transmission only)
Indicates the current gear, and the range of gears
that is available when the shift lever is in the S or D
position. the gear range is shown by the number of
dots ( •) and the current gear is shown as a number.
The transmission automatically selects the gears
within the driver selected gear range.
In the illustration to the left, a range of 6 available gears
(1 through 6) has been selected by the driver. (The shift
lever is in the D or S position with 6 ranges enabled) It is
possible for the transmission to automatically select
between all 6 of the gears. In this case, the transmission
has selected third gear.
■System check display
After switching the “ENGINE START ST OP” switch to IGNITION ON mode,
“CHECK” is displayed while system operation is checked. When the system check
is complete, “COMPLETED” is displayed before returning to the normal screen.
CAUTION
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal informa-
tion 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 shifting and the new gear number
appearing on the display. This lag could cause the driver to downshift again, causing
rapid and excessive engine braking and possibly an accident resulting in personal
death or injury.

161
2-4. Using other driving systems
2
When driving
08_IS350/250_U_(L/O_0708)
■CertificationFor vehicles sold in U.S.A.
For vehicles sold in Canada
CAUTION
■Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set vehicle speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your vehicle
and vehicles ahead by applying the brakes, etc.
■To avoid inadvertent cruise control activation
Keep the “ON-OFF” button off when not in use.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
FCC RF exposure information
This device complies with the FCC RF exposure requirements.
Operation is subject to the following two conditions;
(1) This device may not cause interference, and
(2) This device must accept any interference received, including interference
that may cause undesired operation of the device.

164
2-4. Using other driving systems
08_IS350/250_U_(L/O_0708)
Intuitive parking assist (if equipped)
The distance to obstacles measured by the sensors is communicated via
the multi-information display and a buzzer when parallel parking or
maneuvering into a garage. Always check the surrounding area when
using this system.
For vehicles equipped with a navigation system, refer to the separate “Navi-
gation System Owner’s Manual” for further details.
■Types of sensors
Front corner sensors
Rear corner sensors
Back sensors
■ Multi-information display ( →P. 139)
Front corner sensor opera-
tion
Rear corner sensor operation
Back sensor operation

165
2-4. Using other driving systems
2
When driving
08_IS350/250_U_(L/O_0708)
The display and buzzer system■ Corner sensor operation display and distance to an obstacle
The system operates when the vehicle approaches within approxi-
mately 1.6 ft. (50 cm) of an obstacle.
Approximately 1.2 ft. (37.5 cm)
to 1.6 ft. (50 cm) from the obsta-
cle
Approximately 0.8 ft. (25 cm)
to 1.2 ft. (37.5 cm) from the
obstacle
Flashing: Within 0.8 ft. (25 cm)
of the obstacle
■Intuitive parking assist switch ( →P. 2 4 5 )
When on, an indicator is dis-
played to inform the driver that
the function is operational.

168
2-4. Using other driving systems
08_IS350/250_U_(L/O_0708)
■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor.
• The sensor is frozen.
•The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather
In addition to the examples above, there are instances in which, because of their
shapes, signs and other objects may be judged by the sensor to be closer than they
are.
●The shape of the obstacle may prevent the sensor from detecting it. Pay particu-
lar attention to the following obstacles.
• Wires, fences, ropes etc.
• Cotton, snow and other materials that absorb radio waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your
vehicle
■When the display flashes and a message is displayed
→P. 3 6 9
■Certification (Canada only)
This ISM device compiles with Canadian ICES-001.

175
2-4. Using other driving systems
2
When driving
08_IS350/250_U_(L/O_0708)
CAUTION
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■If hill-start assist control does not operate effectively
(vehicles with an automatic transmission)
The hill-start assist control may not operate effectively on steep inclines and roads
covered in ice.
■When the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indica-
tor light flashes and a buzzer sounds.
■When TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
there are systems to ensure vehicle stability and driving force, do not turn off TRAC
and VSC unless necessary.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS and VSC systems will not function correctly if different tires are fitted on
the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.