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5-1. Essential information
Emergency flashers
NOTICE
■To prevent 12 volt battery discharge
Do not leave the emergency flashers on longer than necessary when the engine is
not running.
Use the emergency flashers if the vehicle malfunctions or is involved in an
accident.
Press the switch to flash all the
turn signal lights. To turn them
off, press the switch once again.
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5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be
dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
*1: Parking brake engaged warning buzzer:
P. 549
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*1
•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
Warning lightWarning light/Details
Charging system warning light
Malfunction in the vehicle’s charging system.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.
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5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is your vehicle low on gas?
If it is, refuel the vehicle immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after taking several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Front passenger detection sensor and passenger seat belt reminder
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash, even if a passenger is not sitting in
the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield and rear side airbag sensors
●The side and curtain shield airbag sensors
●The front passenger occupant classification ECU
●“AIR BAG ON” and “AIR BAG OFF” indicator lights
●The pressure sensor
●The belt tension sensor
●The seat belt buckle switches
●The driver’s seat position sensor
●The inflators
●The warning light
●The interconnecting wiring and power sources
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5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Have the vehicle inspected immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g m e s s a g eDetails
Malfunction in the automatic headlight leveling sys-
tem.
Malfunction in the rear lights system.
(Flashing)
Malfunction in the steering lock system.
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5-2. Steps to take in an emergency
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June 29, 2011 10:30 am
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (P. 135), consider each of the following points.
■The engine will not start even if you are carrying the correct elec-
tronic key
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
●The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. (P. 135)
●There may be a malfunction in the immobilizer system. (P. 8 5 )
■The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume
One of the following may be the cause of the problem.
●The 12 volt battery may be discharged. (P. 5 74 )
●The 12 volt battery terminal connections may be loose or corroded.
■The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound
One of the following may be the cause of the problem.
●One or both of the 12 volt battery terminals may be disconnected.
●The 12 volt battery may be discharged. (P. 5 74 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
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5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Starting the engine when the 12 volt battery is discharged
The engine cannot be started by push-starting.
■To prevent 12 volt battery discharge
●Turn off the headlights and the audio system while the engine is turned off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the 12 volt battery is removed or discharged
The intuitive parking assist must be initialized. (
P. 5 5 2 )
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery.
●Make sure the jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any part other than the intended terminal.
●Do not allow the jumper cables to come into contact with the “+” and “-” termi-
nals.
●Do not allow open flame or use matches, cigarette lighters or smoke near the
battery.
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6-1. Specifications
6
Vehicle specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Electrical system
Differential
Rear differential: “Toyota Genuine Differential Gear Oil” is filled in your
Lexus vehicle at factory fill. Use Lexus approved “Toyota Genuine Differen-
tial Gear Oil” or an equivalent of matching quality to satisfy the above spec-
ification. Please contact your Lexus dealer for further details.
12 volt battery
Open voltage at
68F (20C):12.6 12.8V Fully charged
12.2 12.4V Half charged
11.8 12.0V Discharged
(Voltage is checked 20 minutes after the
engine and all lights are turned off.)
Charging rates5A max.
GS460/
GS350 (2WD)GS350 (4WD)
FrontRear
Oil capacity1.42 qt.
(1.35 L, 1.19 Imp.qt.)0.73 qt.
(0.70 L, 0.61 Imp.qt.)1.42 qt.
(1.35 L, 1.19 Imp.qt.)
Oil type and
viscosity
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
Hypoid gear oil API
GL-5
Above 0°F (-18°C):
SAE 90
Below 0°F (-18°C):
SAE 80W or SAE
80W-90
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
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6-1. Specifications
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Light bulbs
A: D4S high-intensity discharge bulbs
B: HB3 halogen bulbs
C: Wedge base bulbs (amber)
D: Wedge base bulbs (clear)
E: HB4 halogen bulbs
F: Double end bulbs
Light bulbsBulb No.WTy p e
Exterior
Headlights (low beam)D4S35A
Headlights (high beam)HB360B
Front turn signal lights21C
Parking lights5D
Fog lightsHB451E
Front side marker light1945D
Rear turn signal lights21C
Back-up lights92116D
Trunk light5F
InteriorVanity lights8D
