coolant temperature LEXUS LX570 2016 Owners Manual

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LX570_OM_OM60N01U_(U) 2. Instrument cluster
Gauges and meters
The units used on the speedometer may di ffer depending on the target region.
Engine oil pressure gauge Displays the engine oil pressure
Tachometer Displays the engine speed in revolutions per minute
Speedometer Displays the vehicle speed
Vo l t m e t e r Displays the charge state
Fuel gauge Displays the quantity of fuel remaining in the tank
Engine coolant temperature gauge Displays the engine coolant temperature
Multi-information display Presents the driver with a variety of driving-related data  P. 9 1 )1
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LX570_OM_OM60N01U_(U) 2. Instrument cluster■
The meters and display illuminate when
The engine switch is in IGNITION ON mode. ■
The brightness of the instrument panel lights
When the tail lights are turned on, the meter’ s brightness will be reduced slightly unless
the meter brightness leve l adjustment is set to the brightest setting.
If the tail lights are turned on when the surroundings are dark, the meter’s brightness will
be reduced slightly. However, when the surroundings are bright, such as during the day-
time, the meter’s brightness will not be reduced even if the tail lights are turned on. ■
Customization
The meter display can be customized on the multi-information display. (  P. 585)
WA R N I N G ■
The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear number
appearing on the display. This lag could cau se the driver to downshift again, causing
rapid and excessive engine braking and po ssibly an accident resulting in death or
injury.
NOTICE ■
To prevent damage to the engine and its components ●
Do not let the indicator needle of the tachometer enter the red zone, which indicates
the maximum engine speed. ●
The engine may be overheating if the engine coolant temperature gauge is in the red
zone (H). In this case, immediately stop the vehicle in a safe place, and check the
engine after it has cooled completely. (  P. 5 5 6 )■
Vo l t m e t e r
When the voltmeter indicates 19 V or higher or 9 V or lower while the engine is run-
ning, there may be a battery or charging system malfunction. Have the vehicle
inspected at your Lexus dealer. ■
Engine oil pressure gauge
When the value of the engine oil pressure gauge drops while the engine is running,
stop the vehicle in a safe place immediat ely and check the amount of engine oil.
(  P. 4 7 5 )
When the oil pressure drops even though th e engine oil amount has not decreased, or
if the oil pressure does not increase when engine oil is added, contact your Lexus
dealer, as there may be a proble m with the lubrication system.

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LX570_OM_OM60N01U_(U) 4-1. Before driving●
Avoid jerky starts or sudden acceleration. ●
Avoid jerky steering and sharp turns, and slow down before making a turn. ●
Note that when making a turn, the traile r wheels will be closer than the vehicle
wheels to the inside of the turn. Comp ensate by making a wider than normal
turning radius. ●
Slow down before making a turn, in crosswinds, on wet or slippery surfaces,
etc.
Increasing vehicle speed can destabilize the trailer. ●
Take care when passing other vehicles. Passing requires considerable dis-
tance. After passing a vehicle, do not forget the length of your trailer, and be
sure you have plenty of room before changing lanes. ●
To maintain engine braking efficiency and charging system performance
when using engine braking, do not put the transmission in D.
If in the S mode, the transmission shift range position must be in 6 or lower.
(  P. 2 1 0 )●
Instability happens more frequently when descending steep or long downhill
grades. Before descending, slow down and downshift. Do not make sudden
downshifts while descending steep or long downhill grades. ●
Avoid holding the brake pedal down too long or applying the brakes too fre-
quently. This could cause the brakes to overheat and result in reduced braking
efficiency. ●
Due to the added load of the trailer, yo ur vehicle’s engine may overheat on hot
days (at temperatures over 85°F [30°C]) when driving up a long or steep
grade. If the engine coolant temperat ure gauge indicates overheating, imme-
diately turn off the air cond itioning (if in use), pull your vehicle off the road and
stop in a safe spot. (  P. 5 5 6 )

LX570_OM_OM60N01U_(U) 3074-5. Using the driving support systems
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Driving ■
The center differential lock indicator light
The indicator light blinks while locking/unlocking the center differential.■
The center differential lock/unlock switch can be operated when ●
The engine switch is in IGNITION ON mode. ●
The vehicle speed is less than 62 mph (100 km/h). ■
Locking/unlocking the center differential●
When the four-wheel drive control switch is in L4 with the center differential locked,
VSC is automatically turned off. (The center differential lock and VSC OFF indicator
lights come on.) ●
If the operation is not completed, the center di fferential lock indicato r blinks. If the indi-
cator light does not turn off when unlocking the center differential, drive straight ahead
while accelerating or decelerating, or drive in reverse. ●
If the center differential lock/unlock is not completed within 5 seconds while the cruise
control system is on, cancel the cruise control system. ■
If the low speed four-wheel drive indicator light or the center differential lock indicator
light blinks ●
If the low speed four-wheel drive indicator lig ht continues to blink when using the four-
wheel drive control switch, stop the vehicle completely, move the shift lever to N and
operate the switch again. ●
If the shift lever is moved before the low sp eed four-wheel drive indicator turns on/off,
the transfer mode may not be shifted comp letely. The transfer mode disengages both
the front and rear driveshafts from the powertrain and allows the vehicle to move
regardless of the shift position. (At this time , the indicator blinks and the buzzer sounds.)
Therefore, the vehicle is free to roll even if the automatic transmission is in P. You or
someone else could be seriously injured. You must complete the shifting of the transfer
mode.
To complete the shifting, stop the vehicle completely, return the shift lever to N, and
confirm that the shift was completed (the indicator turns on/off). ●
If the engine coolant temperature is too low, the four-wheel drive control system may
not be able to shift. When the engine is warmer operate the switch again.
If the low speed four-wheel drive indicator light or the center differential lock indicator
light continues to blink even after attempti ng the above, there may be a malfunction in
the engine, the brake system or the four-wheel drive system. In this case, you may not be
able to shift between H4 and L4, and the center differential lock may not be operable.
Have the vehicle inspected by your Lexus dealer immediately.

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LX570_OM_OM60N01U_(U) 4-6. Driving tips
Winter driving tips ●
Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine coolant
• Washer fluid ●
Have a service technician inspect the condition of the battery. ●
Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the rear tires.
*Ensure that all tires are the same size and br and, and that chains match the size of the
tires.
* : Tire chains cannot be mounted on vehicles with 21-inch tires
Perform the following according to the driving conditions: ●
Do not try to forcibly open a window or move a wiper that is frozen. Pour
warm water over the frozen area to melt the ice. Wipe away the water imme-
diately to prevent it from freezing. ●
To ensure proper operation of the climate control system fan, remove any
snow that has accumulated on the air in let vents in front of the windshield.●
Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassis, around the tires or on the brakes. ●
Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.Carry out the necessary preparations and inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Pre-winter preparations
Before driving the vehicle

LX570_OM_OM60N01U_(U) 4716-3. Do-it-yourself maintenance
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Maintenance and care WA R N I N G
The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically energized. To avoid death or serious injury, observe
the following precautions: ■
When working on the engine compartment ●
Keep hands, clothing and tools away from the moving fan and engine drive belt.●
Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving
as they may be hot. Oil and other fluids may also be hot. ●
Do not leave anything that may burn easily, such as paper or rags, in the engine com-
partment. ●
Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and
battery fumes are flammable. ●
Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid. ■
When working near the electric cooling fans or radiator grille
Be sure the engine switch is off. With the engine switch in IGNITION ON mode, the
electric cooling fans may automatically start to run if the air conditioning is on and/or
the coolant temperature is high. (  P. 4 7 9 ) ■
When working on or under the vehicle
Do not get under the vehicle with just the jack supporting it.
Always use automotive jack stands or other solid supports. ■
Safety glasses
Wear safety glasses to prevent flying or fallin g material, fluid spray, etc. from getting in
your eyes.
NOTICE ■
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.

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LX570_OM_OM60N01U_(U) 6-3. Do-it-yourself maintenance
The coolant level is satisfactory if it is between the “F” and “L” lines on the reser-
voir when the engine is cold.
Reservoir cap
“F”
“L” If the level is on or below the “L” line, add
coolant up to the “F” line. ■
Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol-
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid
organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50 % coolant and 50 % deion-
ized water. (Minimum temperature: -31  F [-35  C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant and 45 % deion-
ized water. (Minimum temperature: -44  F [-42  C])
For more details about engine coolant, contact your Lexus dealer. ■
If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and water
pump. If you cannot find a leak, have your Le xus dealer test the cap and check for leaks in
the cooling system.Engine coolant 1
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WA R N I N G ■
When the engine is hot
Do not remove the radiator cap, or the coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.

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LX570_OM_OM60N01U_(U) 7-2. Steps to take in an emergency
If you think something is wrong ●
Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal)●
Flat-looking tires or uneven tire wear ●
Engine coolant temperature gauge needle continually points higher than nor-
mal ●
Engine oil pressure gauge continually points lower than normal ●
Voltmeter continually points higher or lower than normal●
Changes in exhaust sound ●
Excessive tire squeal when cornering ●
Strange noises related to the suspension system ●
Pinging or other noises related to the engine ●
Engine missing, stumbling or running roughly ●
Appreciable loss of power ●
Vehicle pulls heavily to one side when braking ●
Vehicle pulls heavily to one side when driving on a level road ●
Loss of brake effectiveness, spongy f eeling, pedal almost touches the floorIf you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

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LX570_OM_OM60N01U_(U) 7-2. Steps to take in an emergency
If your vehicle overheats Stop the vehicle in a safe place and tu rn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans If a large amount of coolant leaks,
immediately contact your Lexus
dealer.The following may indicate that your vehicle is overheating. ●
The needle of the engine coolant temperature gauge (  P. 8 8 ) e n t e r s t h e
red zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.) ●
Steam is coming from under the hood.
Correction procedures 1
2
3
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2

5577-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U) 7
When trouble arises The coolant level is satisfactory if it is between the “F” and “L” lines on the res-
ervoir.
Reservoir
“F”
“L”
Radiator cap
Add coolant if necessary. Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the air
conditioning condenser cooling fans op erate and to check for coolant leaks
from the radiator or hoses. The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are oper ating by checking the fan sound and air flow.
If it is difficult to check th ese, turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer. 4
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