2014 LEXUS LX570 radiator

7544-3. Do-it-yourself maintenance
LX570_OM_OM60L21U_(U) Radiator and condenser
Check the radiator and condenser, and clear any foreign objects.
If any of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer. CAUTION■
When the engine is hot
Do not remove 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.
NOTICE■
When adding engine coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water
and antifreeze must be used to provide proper lubrication, corrosion protection
and cooling. Be sure to read the antifreeze or coolant label. ■
If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.
CAUTION■
When the engine is hot
Do not touch the radiator or condenser, as they may be hot and cause serious inju-
ries, such as burns.

5
When trouble arises
8735-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) If your vehicle overheats
Correction procedures
Stop the vehicle in a safe place and turn 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. 1 9 0 )
enters the 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. STEP 1
STEP 2
STEP 3

8745-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F”
“L”
Radiator cap
Add coolant if necessary.
(  P. 74 8 ) Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans op erate and to check for coolant
leaks from the radiator or hoses. The fans operate when the air conditio ning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is diff icult to check these, turn the air con-
ditioning 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. STEP 4
STEP 5
STEP 6
STEP 7

5
When trouble arises
8755-2. Steps to take in an emergency
LX570_OM_OM60L21U_(U) CAUTION■
To prevent an accident or injury when in specting under the hood of your vehicle●
If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injury such as burns. ●
Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans
and belts. Failure to do so may cause the hands or clothing to be caught, resulting
in serious injury. ●
Do not loosen the radiator cap or the c oolant reservoir cap while the engine and
radiator are hot.
Serious injury, such as burns, may resu lt from hot coolant and steam released
under pressure.
NOTICE■
When adding engine coolant
Wait until the engine has cooled do wn before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine. ■
To prevent damage to the cooling system
Observe the following precautions: ●
Avoid contaminating the coolant with foreig n matter (such as sand or dust etc.).●
Do not use any coolant additives.

942Alphabetical index
LX570_OM_OM60L21U_(U) Opener
Back door................................................. 56
Fuel filler door..........................................114
Hood........................................................ 746
Outside rear view mirrors
Adjusting and folding ....................... 104
Outside temperature
display ..................................................... 451
Overhead console .............................. 689
Overheating, Engine...........................873
Paddle shift switches .................. 182, 184
Parking brake ..........................................188
Parking lights
Switch ......................................................206
PCS ............................................................355
Personal lights
Switch ......................................................684
Power back door ..................................... 57
Power outlet............................................. 701
Power steering
Fluid ......................................................... 888
Power windows ...................................... 107
Pre-collision system.............................355
Radar cruise control ............................ 234
Radiator .................................................... 754
Radio ..........................................................483
Rear air conditioning
system..................................................... 452
Rear seat
Adjustment................................................. 71
Folding the third seats ........................ 75
Tumbling second seats....................... 72
Rear seat entertainment system ..... 575 Rear step bumper ................................... 58
Rear turn signal lights
Replacing light bulbs .......................805
Wattage .................................................890
Rear view monitor system ................ 260
Rear window defogger ...................... 456
Rear window wiper.............................. 226
Replacing
Key battery ........................................... 780
Fuses .........................................................782
Light bulbs ............................................ 799
Tires.......................................................... 849
Reporting safety defects for
U.S. owners.......................................... 920
Roll sensing of curtain shield
airbags off switch................................. 137
Roof luggage carrier........................... 366
Safety Connect ......................................722
Seat belts
Adjusting the seat belt ......................... 91
Automatic Locking Retractor ........ 95
Child restraint system
installation ............................................ 149
Cleaning and maintaining
the seat belts .....................................734
Emergency Locking
Retractor ............................................... 95
How to wear your seat belt .............. 91
How your child should wear
the seat belt.......................................... 95
Pre-collision seat belts........................94
Pregnant women, proper seat
belt use .................................................... 97
Reminder light..................................... 823P
R S