2007 Lexus IS250 park assist

147
2-4. Using other driving systems
2
When driving
CAUTION
■Caution when using the Lexus parking-assist sensor
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely and possi-
bly cause an accident.
●Do not use the sensor at speeds in excess of 6 mph (10 km/h).
●Do not attach any accessories within the sensor range.
NOTICE
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.

223
3-5. Other interior features
3
Interior features
■Items that can be set using the satellite switches
Lexus parking assist-sensor (P. 142) ON/OFF
(if equipped)
Tire pressure warning system initialization
(P. 285)
ID code selection for tire air pressure system
(P. 2 8 6 )
AFS (Adaptive Front-lighting System) (P. 1 2 3 )
ON/OFF (if equipped)
Vehicle speed indicator ON/OFF and speed set-
ting (P. 111)
Tacho indicator ON/OFF and engine speed (rpm)
setting (P. 111)

224
3-5. Other interior features
■Changing the settings
Each item is displayed and its setting can be changed only in the following condi-
tions:
●Lexus parking assist-sensor: When the engine switch is in IG-ON mode.
●Items other than the above: When the engine switch is in IG-ON mode and the
vehicle is stopped.
■Display
The display will return to the original display if the satellite switches are not oper-
ated for an extended period.
Even if the display is in satellite switch mode, it will switch in the event of a warning
or when the radar cruise control is used. If this occurs, press any of the satellite
switches or DISP switch on the steering wheel to return the display to satellite
switch mode.

314
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
14RR DOOR LH20APo w e r w i n d o w s
15FR DOOR LH20APo w e r w i n d o w s
16SECURITY7. 5 ASmart access system with push-button
start
17H-LP LVL7. 5 AAFS
18LH-IG10A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, sun shade, seat belts,
Lexus parking assist-sensor, cruise
control, air conditioning system, PTC
heater
19FR WIP30AWindshield wipers

316
4-3. Do-it-yourself maintenance
FuseAmpereCircuit
13FR DOOR RH20APower windows, outside rear view
mirrors
14AM215ASmart access system with push-button
start
15RH-IG7. 5 A
Seat belts, Lexus parking assist-sen-
sor, automatic transmission, seat
heater and ventilator
16FR S/HTR RH15ASeat heaters and ventilators
17ECU-IG RH10A
Power seats, smart access system with
push-button start, AWD system, out-
side rear view mirrors, VDIM, VSC,
air conditioning system, pre-collision
seat belt, electric tilt and telescopic
steering, power windows, navigation
system
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (P. 3 1 9 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

5
When trouble arises
329
5-1. Essential information
■Emergency towing procedure
Release the parking brake.
Put the transmission in N.
Put the engine switch in ACC mode (engine off ) or IG-ON mode (engine
running).
CAUTION
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on
the emergency towing eyelets and the cables or chains.
●If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
NOTICE
■To prevent causing serious damage to the transmission
(for vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.
This may cause serious damage to the transmission.
■When towing a vehicle without using a towing dolly
(for vehicles with a manual transmission)
The engine switch must not be OFF.
STEP1
STEP2
STEP3

346
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetails
(If equipped)
Indicates a malfunction in the pre-collision system.
(If equipped)
Indicates Lexus parking assist-sensor malfunction.
The malfunctioning assist-sensor is shown flashing on
the display.
(If equipped)
(Flashing)
Indicates a malfunction in the radar cruise control
system.
Stop the vehicle in a safe place. Switch the engine
switch to OFF and then to IG-ON mode again to
reset the cruise control system.

352
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates low tire pres-
sure.Check the tire pressure,
and adjust to the appropri-
ate level.
(Flashing)
(If equipped)
Indicates that the pre-
collision system is not
currently functional.
Clean the grille and the
sensor.
This message appears
when the pre-collision
system is hot. In this case,
wait until the system
cools down.
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with ice.
Clean the sensor.
(If equipped)
(Flashing)
Indicates that the radar
cruise control sensor is
dirty or covered with ice.
Clean the sensor.