light Lexus GS250 2014 Repair Manual

2214-1. Before driving
4
Driving
GS350_250_OM_OM30E16E_(EE)
CAUTION
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in the vehi-
cle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and plasticmaterial of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the interior of the vehicle, and may also cause a short circuit in the vehicle’s electrical com-
ponents.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such
as the glove box or on the floor, it may be lit accidentally when luggage is loaded
or the seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windshield or windows. Do not place contain-
ers such as air fresheners on the instrument panel or dashboard. Adhesive discs
or containers may act as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if the curved glass is coated with a metal-
lized film such as a silver-colored one. Reflected sunlight may cause the glass to
act as a lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P, stop the engine and lock
the vehicle.
Do not leave the vehicle unattended while the engine is running.
●Do not touch the exhaust pipes while the engine is running or immediately after
turning the engine off.
Doing so may cause burns.
GS350_250_OM_OM30E16E_(EE).book Page 221 Tuesday, July 8, 201 4 7:11 PM

2324-1. Before driving
GS350_250_OM_OM30E16E_(EE)
■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. 6 4 5 )
●Increase the air pressure of the trailer tires in accordance with the total trailer
weight and according to the values recommended by the manufacturer of your
trailer.
■Trailer lights
●Please consult at any authorized dealer or repairer, or another duly qualified and
equipped professional when installing trailer lights, as incorrect installation may
cause damage to the vehicle’s lights. Please take care to comply with your state’s
laws when installing 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.
■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).
■Safety checks before towing
●Check that the maximum load limit for the towing hitch/bracket and 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 the total load exerted on the vehicle is
within the range of the weight limits. ( →P. 2 2 8 )
●Ensure that the trailer load is secure.
●Supplementary outside rear view mirrors should be added to the vehicle if the traf-
fic 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.
■Maintenance
●Maintenance must be performed more frequently when using the vehicle for tow-
ing due to the greater weight burden placed on the vehicle compared to normal
driving.
●Retighten all bolts securing the hitching ball and bracket after towing for approxi-
mately 1000 km (600 miles).
GS350_250_OM_OM30E16E_(EE).book Page 232 Tuesday, July 8, 201 4 7:11 PM

2334-1. Before driving
4
Driving
GS350_250_OM_OM30E16E_(EE)
Your vehicle will handle differently when towing a trailer. In order to avoid
accident, death or serious injury, keep the following in mind when towing:
■Checking connections between trailer and lights
Stop the vehicle and check the operation of the connection between
the trailer and lights after driving for a brief period as well as before
starting off.
■Practicing driving with a coupled trailer
●Get the feel for turning, stopping and reversing with the trailer cou-
pled by practicing in an area with no or light traffic.
●When reversing with a coupled trailer, hold the section of the steer-
ing wheel nearest to you and rotate clockwise to turn the trailer left
or counterclockwise to turn it right. Always rotate a little at a time to
prevent steering error. Have someone guide you when reversing to
lessen the risk of an accident.
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 corro-
sion, which will weaken the section concerned and may result in damage. Apply a
rust inhibitor to parts that will come in contact when attaching a steel bracket.
Guidance
GS350_250_OM_OM30E16E_(EE).book Page 233 Tuesday, July 8, 201 4 7:11 PM

2434-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in ACCESSORY or IGNITION ON mode for
long periods of time without the engine running.
●If “POWER ON” is displayed on the multi-information display, the engine switch
is not off. Exit the vehicle after turning the engine switch off.
●Do not stop the engine when the shift lever is in a position other than P. If the
engine is stopped in another shift lever position, the engine switch will not be
turned off but instead be turned to ACCESSORY mode. If the vehicle is left in
ACCESSORY mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have your vehicle
checked by any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional immediately.
■Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual, such as
the switch sticking slightly, there may be a malfunction. Contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional
immediately.
GS350_250_OM_OM30E16E_(EE).book Page 243 Tuesday, July 8, 2014 7:11 PM

2544-2. Driving procedures
GS350_250_OM_OM30E16E_(EE)
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
■If the turn signals stop flashing before a lane ch ange has been performed
Operate the lever again.
■Customization
The number of times the turn signals flash during a lane change can be changed.
(Customizable feature →P. 6 5 0 )
GS350_250_OM_OM30E16E_(EE).book Page 254 Tuesday, July 8, 201 4 7:11 PM

255
4
4-2. Driving procedures
Driving
GS350_250_OM_OM30E16E_(EE)
Pa rk ing bra ke
Sets the parking brake
The parking brake indicator light will
come on. (
→P. 2 5 6 )
Press and hold the parking brake
switch if an emergency occurs and it is
necessary to operate the parking
brake while driving.
Releases the parking brake
Operate the parking brake switch
while depressing the brake pedal.
Make sure that the parking brake indi-
cator light goes off.
A selections can be made as desired from the following modes.
Manual mode
1
2
GS350_250_OM_OM30E16E_(EE).book Page 255 Tuesday, July 8, 201 4 7:11 PM

2564-2. Driving procedures
GS350_250_OM_OM30E16E_(EE)
The parking brake is set or released automatically according to shift lever
operation.
Turns automatic mode on/off
●When the shift lever is moved out
of P, the parking brake will be
released.
●When the shift lever is moved into
P, the parking brake will be set.
Operate the shift lever with the brake
pedal depressed.
■Parking brake operation
●When the engine switch is not in IGNITION ON mode, the parking brake cannot
be released using the parking brake switch.
●When the engine switch is not in IGNITION ON mode, automatic mode (auto-
matic brake setting and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system
may restrict operation to prevent overheating. If this happens, refrain from operat-
ing the parking brake. Normal operation will return after about 1 minute.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Parking brake indicator light
●Depending on the engine switch mode, the parking brake indicator light will come
on and stay on as described below:
IGNITION ON mode: Comes on until the parking brake is released.
Not in IGNITION ON mode: Stays on for approximately 15 seconds.
●When the engine switch is turned off with the parking brake set, the parking brake
indicator light will stay on for about 15 seconds. This does not indicate a malfunc-
tion.
Automatic mode
GS350_250_OM_OM30E16E_(EE).book Page 256 Tuesday, July 8, 201 4 7:11 PM

2574-2. Driving procedures
4
Driving
GS350_250_OM_OM30E16E_(EE)
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. (→P. 5 4 4 , 5 5 2 )
Depending on the condition, the parking brake indicator light may flash.
■Usage in winter time
→ P. 3 5 4
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the parking brake, shift the shift lever to P and
make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and check the warning messages.
■When the parking brake cannot be released due to a malfunction
Use the parking brake release tool to manually release the parking brake.
( → P. 6 1 5 )
Driving the vehicle with the parking brake set will lead to brake components over-
heating, which may affect braking performance and increase brake wear.
GS350_250_OM_OM30E16E_(EE).book Page 257 Tuesday, July 8, 201 4 7:11 PM

259
4
4-3. Operating the lights and wipers
Driving
GS350_250_OM_OM30E16E_(EE)
Headlight switch
Turning the end of the lever turns on the lights as follows:
The front position, tail,
license plate and instru-
ment panel lights turn on.
The headlights and all lights
listed above turn on.
The headlights, daytime
running lights and all the
lights listed above turn on
and off automatically.
(When the engine switch is
in IGNITION ON mode.)
The daytime running lights
turn on.
The headlights can be operated manually or automatically.
Operating instructions
1
2
3
4
GS350_250_OM_OM30E16E_(EE).book Page 259 Tuesday, July 8, 201 4 7:11 PM

2604-3. Operating the lights and wipers
GS350_250_OM_OM30E16E_(EE)
With the headlights on, push the
lever away from you to turn on
the high beams.
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and
release it to flash the high beams
once.
You can flash the high beams with the
headlights on or off.
This system allows the headlights and front position lights to be turned on
for 30 seconds when the engine switch is off.
Pull the lever toward you and
release it with the light switch is in or after turning the engine
switch off.
Pull the lever toward you and release it
again to turn off the lights.
Turning on the high beam headlights
1
2
Follow me home system
GS350_250_OM_OM30E16E_(EE).book Page 260 Tuesday, July 8, 201 4 7:11 PM