wiring Lexus IS220d 2012 Owner's Manual

246
2-5. Driving information
IS250/220d/200d_EE1110 mm (43.7 in.)
681 mm (26.8 in.)
360 mm (14.2 in.)
IS250:
Vehicles with
badges* 377 mm (14.8 in.)
Vehicles without
badges* 367 mm (14.4 in.)
Vehicles sold in Turkey,
Ukraine, Kazakhstan and
Belarus . 379 mm (14.9 in.)
IS220d and IS200d:
379 mm (14.9 in.)
10 mm (0.4 in.)
8 mm (0.3 in.)
*: Except Turkey, Ukraine,
Kazakhstan and Belarus
Tire information
Increase the tire inflation pressure to 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi)
greater than the recommended value when towing. (P. 548)
Increase the air pressure of the trailer tires in accordance with the total
trailer weight and according to the values recommended by the manufac-
turer of your trailer.
Trailer lights
Check that the turn signal lights and stoplights are operating correctly every
time you hitch up the trailer. Directly wiring up to your vehicle may damage
the electrical system and stop the lights from functioning correctly.

247
2-5. Driving information
2
When driving
IS250/220d/200d_EE
Break-in schedule
Lexus recommends that vehicles fitted with new power train components
should not be used for towing trailers for the first 800 km (500 miles).
Maintenance
Maintenance must be performed more frequently when using the vehicle
for towing due to the greater weight burden placed on the vehicle com-
pared to normal driving.
Retighten all bolts securing the hitching ball and bracket after towing for
approximately 1000 km (600 miles).
Safety checks before towing
Check that the maximum load limit for the towing hitch/bracket hitch
ball is not exceeded. Bear in mind that the coupling weight of the trailer
will add to the load exerted on the vehicle. Also make sure that you will
not be towing a load that exceeds the maximum permissible axle capac-
ity.
Ensure that the trailer load is secure.
Supplementary outside rear view mirrors should be added to the vehicle
if the traffic behind cannot be clearly seen with standard mirrors. Adjust
the extending arms of these mirrors on both sides of the vehicle so that
they always provide maximum visibility of the road behind.
NOTICE
When the rear bumper strengthening material is aluminum
Ensure the steel bracket part does not come directly in contact with that
area.
When steel and aluminum come into contact, there is a reaction similar to
corrosion, which will weaken the section concerned which may result in
damage. Apply a rust inhibitor to parts that will come in contact when
attaching a steel bracket.
When installing a towing harness to the vehicle
To prevent inoperative stop lights and damage to the vehicle stop light wir-
ing, take care when connecting a trailer harness to the vehicle. A relay with
a separate power source must be added to limit the current draw on the vehi-
cle stop light wiring.

393
4-1. Maintenance and care
4
Maintenance and care
IS250/220d/200d_EE
Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year
to maintain the quality of the vehicle’s interior.
Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a
sponge or brush to apply the foam. Rub in overlapping circles. Do not apply
water. Excellent results are obtained by keeping the carpet as dry as possi-
ble.
Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also
check the belts periodically for excessive wear, fraying or cuts.
CAUTION
Water in the vehicle
Do not splash or spill liquid in the vehicle.
Doing so may cause electrical components etc. to malfunction or catch
fire.
Do not get any of the SRS components or wiring in the vehicle interior
wet.
(P. 1 1 1 )
Electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or severe injury.
Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect
off the windshield, obstructing the driver's view and leading to an accident,
resulting in death or serious injury.

452
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
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. 453)
If the replaced fuse blows again, have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
Never use a fuse of a higher amperage rating than indicated, or use any
other object in place of a fuse.
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
Do not modify the fuses or the fuse box.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional, as soon as possible.