2015 LEXUS LX570 radiator

5
When trouble arises
8795-2. Steps to take in an emergency
LX570_OM_OM60L96U_(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. 192)
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

8805-2. Steps to take in an emergency
LX570_OM_OM60L96U_(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. Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and tu rn the air conditioning system on to check
that the radiator cool ing fans operate and to check for coolant
leaks from the radiator or hoses. The fans operate when the air conditioning 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 difficult 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
8815-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) CAUTION■
To prevent an accident or injury when inspecting 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 engi ne compartment 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 coolant reservoir cap while the engine and
radiator are hot.
Serious injury, such as bu rns, may result from hot coolant and steam released
under pressure.
NOTICE■
When adding engine coolant
Wait until the engine has cooled down 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 additive.

948Alphabetical index
LX570_OM_OM60L96U_(U) Opener
Back door................................................. 56
Fuel filler door......................................... 116
Hood........................................................750
Outside rear view mirrors
Adjusting and folding ....................... 104
Outside temperature
display ....................................................455
Overhead console ...............................693
Overheating, Engine...........................878
Paddle shift switches .................. 184, 186
Parking brake .......................................... 190
Parking lights
Switch ......................................................208
PCS ............................................................ 357
Personal lights
Switch ..................................................... 688
Power back door ..................................... 57
Power outlet............................................705
Power steering
Fluid ..........................................................894
Power windows ......................................108
Pre-collision system............................. 357
Radar cruise control ............................ 236
Radiator ....................................................758
Radio .......................................................... 487
Rear air conditioning
system.....................................................456
Rear seat
Adjustment................................................. 71
Folding the third seats ........................ 75
Tumbling second seats....................... 72
Rear seat entertainment system ..... 579 Rear step bumper ................................... 58
Rear turn signal lights
Replacing light bulbs .......................809
Wattage ................................................. 896
Rear view monitor system ................ 262
Rear window defogger ...................... 460
Rear window wiper.............................. 228
Replacing
Key battery ........................................... 784
Fuses ........................................................ 786
Light bulbs ............................................803
Tires.......................................................... 854
Reporting safety defects for
U.S. owners.......................................... 926
Resetting the message indicating
maintenance is required .................. 741
Roll sensing of curtain shield
airbags off switch.................................139
Roof luggage carrier........................... 368
Safety Connect ..................................... 726
Seat belts
Adjusting the seat belt ......................... 91
Automatic Locking Retractor ........ 95
Child restraint system
installation ..............................................151
Cleaning and maintaining
the seat belts .................................... 738
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 .................................................... 97P
R S