Page 83 of 482

Finish
GAUGES, METERS AND SERVICE REMINDER INDICATORS
58If any of the following conditions occurs, this indicates a
malfunction somewhere in the parts monitored by the warning
light system. Contact your Lexus dealer as soon as possible
to service the vehicle.
When the ignition switch is turned to the ONº position, the
light does not come on or remains on.
The light comes on while driving.
(e) Discharge Warning Light
This light warns that the battery is being discharged.If it comes on while you are driving, stop the vehicle, turn off the
engine, and check for the cause. Look first at the engine drive
belt.
If it is loose or broken, the generator will not charge the
battery properly.
If the belt is O.K., there is a problem somewhere in the
charging system.
The engine ignition will continue to operate, however, until the
battery is discharged. Turn off the air conditioning, blower,
radio, etc., and drive directly to the nearest Lexus dealer or
repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken
or loose.
Page 303 of 482

STARTING AND DRIVING
278
(e) Parking
1Brake pedal2Parking brake pedal
3Pº (Park) position
1. Bring the vehicle to a complete stop.
2. Depress the parking brake fully to securely apply the
parking brake.
3. With the brake pedal held down with your foot, shift the
selector lever to the Pº position.
CAUTION
Never attempt to move the selector lever into Pº under
any circumstances while the vehicle is moving. Serious
mechanical damage and loss of vehicle control may
result.
(f) Good driving practice
If the transmission repeatedly shifts up and down between
fourth and overdrive gears when climbing a gentle slope,
shift the selector lever to the 4º position. Be sure to shift the
selector lever to the Dº position after climbing the slope.
When towing a trailer, in order to maintain efficient engine
braking and electrical charging performance, do not use
overdrive.
CAUTION
Always keep your foot on the brake pedal while stopped
with the engine running. This prevents the vehicle from
creeping.
Page 331 of 482

DRIVING TIPS
306Avoid jerky starts or sudden acceleration.
Avoid jerky steering and sharp turns. The trailer could hit
your vehicle in a tight turn. Slow down before making a turn
to avoid the need of sudden braking.
Remember that when making a turn, the trailer wheels will
be closer than the vehicle wheels to the inside of the turn.
Therefore, compensate for this by making a larger than
normal turning radius with your vehicle.
Crosswinds and rough roads will adversely affect handling
of your vehicle and trailer, causing sway. Pay attention to
the rear from time to time to prepare yourself for being
passed by large trucks or buses, which may cause your
vehicle and trailer to sway. If swaying happens, firmly grip
the steering wheel and reduce speed immediately but
gradually. Never increase speed. If it is necessary to
reduce speed, brake slowly. Steer straight ahead. If you
make no extreme correction with the steering or brakes,
your vehicle and trailer will stabilize.
Be careful when passing other vehicles. Passing requires
considerable distance. After passing a vehicle, do not forget
the length of your trailer and be sure you have plenty of room
before changing lanes.
In order to maintain efficient engine braking and electrical
charging performance, do not use overdrive.Because of the added load of the trailer, your vehicle's
engine may overheat on hot days (at temperatures over
30C [85F]) when going up a long or steep grade with a
trailer. If the engine coolant temperature gauge indicates
overheating, immediately turn off the air conditioning (if in
use), pull your vehicle off the road and stop in a safe spot.
See If your vehicle overheatsº on page 321.
Always place wheel blocks under both the vehicle and trailer
wheels when parking. Apply the parking brake firmly. Put
the transmission in Pº. Avoid parking on a slope with a
trailer, but if it cannot be avoided, do so only after performing
the following:
1. Apply the brakes and keep them applied.
2. Have someone place wheel blocks under both the vehicle
and trailer wheels.
3. When the wheel blocks are in place, release your brakes
slowly until the blocks absorb the load.
4. Apply the parking brake firmly.
5. Shift into Pº and turn off the engine.
When restarting out after parking on a slope:
1. With the transmission in Pº position, start the engine. Be
sure to keep the brake pedal depressed.
2. Shift into the 3º, 2º, Lº or Rº position.
Page 345 of 482

IN CASE OF AN EMERGENCY
320
CAUTION
When making the connections, to avoid serious injury,
do not lean over the battery or accidentally let the
jumper cables or clamps touch anything except the
correct battery terminals or the ground.
5. Start your engine in the normal way. After starting, run it at
about 2000 rpm for several minutes with the accelerator pedal
lightly depressed.
6. Carefully disconnect the cables in the exact reverse order:
the negative cable and then the positive cable.
7. Carefully dispose of the battery cover cloths which may now
contain sulfuric acid.
8. If removed, replace all the battery vent plugs.
If the cause of your battery discharging is not apparent (for
example, lights left on), you should have it checked at your
Lexus dealer.
IF YOU CANNOT INCREASE THE
ENGINE SPEED
If the engine speed does not increase with the accelerator
pedal depressed down, there may be a problem somewhere
in your electronic throttle control system.
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to the ACCº or LOCKº position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
Page 389 of 482

ENGINE
364Ð COOLING SYSTEM
Capacity
9.2 L (9.7 qt., 8.2 lmp. qt.)
Coolant typeToyota Super Long Life Coolantº or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology
Do not use plain water alone.
NOTE:
Toyota Super Long Life Coolantº is filled in your Lexus vehicle at factory fill. In order to avoid technical problems, only use Toyota
Super Long Life Coolantº or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology. Please contact your Lexus dealer for further details.
Ð IGNITION SYSTEM
Spark plug Ð Make DENSO
NGK
Ð Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
Ð ELECTRICAL SYSTEM
Battery Open voltage at 20C (68F):
Charging rates
12.7 V Fully charged
12.3 V Half charged
11.9 V Discharged
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5 A max.
Page 435 of 482

SECTION 6 ± 4
410
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition421 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions426 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the cartridge type fuses429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid432 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim433 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 438 of 482
ELECTRICAL COMPONENTS
413
No.FUSEAMPERECIRCUIT
1A/F25Multiport fuel injection
system/sequential multiport
fuel injection system
2DOOR125
Multiplex communication
system (power door lock
system, auto- door locking
system, wireless remote
control system)
3TEL5No circuit
4AM230All components in IGNº and
IG2º fuses and starting system
5EFI20Multiport fuel injection
system/sequential multiport
fuel injection system
6ALT-S5Charging system
7HEAD LH
UPR10Left- hand headlight (high
beam)
No.FUSEAMPERECIRCUIT
8ETCS10Multiport fuel injection
system/sequential multiport
fuel injection system
9HORN10Horns
10IGN15Starting system
11HEAD RH
UPR10Right- hand headlight (high
beam)
12HAZ15Emergency flashers
Page 449 of 482
ELECTRICAL COMPONENTS
424
NOTICE
Make sure the engine and all accessories are turned
off before performing maintenance.
When checking the battery, remove the ground cable
first and reinstall it last.
Be careful not to cause a short circuit with tools.
Take care no solution gets into the battery when
washing it.
If the battery is disconnected or run down
The moon roof may not operate automatically and the jam
protection function will not function correctly after you
reconnect, replace or recharge the battery. In any of these
cases, you should normalize the moon roof. To normalize the
moon roof, see page 101.
Checking battery condition
Checking by indicator
Check the battery condition by the indicator color.
1BLUE Ð Good condition
2WHITE Ð Charging necessary. Have the battery
checked by your Lexus dealer.