2016 LEXUS NX200T radiator

4977-3. Do-it-yourself maintenance
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Maintenance and care
NX200t_OM_USA_OM78081U
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle inspected by your Lexus dealer.
WA R N I N G
■When the engine is hot
Do not remove the engine coolant reservoir and the intercooler 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 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 cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Radiator and condenser
WA R N I N G
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries,
such as burns.
■When the electric cooling fans are operating
Do not touch the engine compartment.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
Be sure the engine switch is off when working near the el ectric cooling fans or radia-
torgrille.

5848-2. Steps to take in an emergency
NX200t_OM_USA_OM78081U
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 7 ) e n t e r s t h e
red zone, or a loss of engine power is experienced. (For example, the vehi-
cle speed does not increase.)
●“Engine Coolant Temp High” is shown on the multi-information display.
●Steam comes out from under the hood.
Correction procedures
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2
3
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5858-2. Steps to take in an emergency
8
When trouble arises
NX200t_OM_USA_OM78081U
The coolant level is satisfactory if it is between the “FULL” and “LOW” lines on
the reservoir.
Add coolant if necessary.
Start the engine and turn the air conditioning system on to check that the radi-
ator cooling fans operate 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 these, 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 an d contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
4
EngineIntercooler radiator
Reservoir
“FULL” line
“LOW” line
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2
3
5
EngineIntercooler radiator
Water can be used in an emerge ncy if coolant is unavailable.
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5868-2. Steps to take in an emergency
NX200t_OM_USA_OM78081U
Check if “Engine Coolant Temp High” is shown on the multi-information dis-
play.
If the message does not disappear:
Stop the engine and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
WA R N I N G
■To prevent an accident or injury when in specting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●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 seri-
ous injury.
●Do not loosen the coolant reservoir cap while the engine and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. 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 foreign matter (such as sand or dust etc.).
●Do not use any coolant additive.
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653Alphabetical index
NX200t_OM_USA_OM78081U
Radar cruise control (dynamic radar cruise control) ..........................231
Radar cruise control (dynamic radar cruise control
with full-speed range) ..................... 244
Radiator .................................................... 497
Radio........................................................... 351
Rear Cross Traffic Alert .................... 309
Rear seat Folding down the rear seatbacks ............................................. 138
Rear side marker lights Light switch ............................................ 210
Replacing light bulbs ........................537
Rear turn signal lights Replacing light bulbs ........................532
Turn signal lever ................................ 203
Wattage ................................................. 598 Rear view mirror
Inside rear view mirror......................153
Outside rear view mirrors ............. 155
Rear window defogger .......................425
Rear window wiper ..............................225
Refueling................................................... 227 Capacity ................................................. 592
Fuel types............................................... 592
Opening the fuel tank cap .............227
When the fuel filler door cannot be opened ......................... 229
Remote Touch
*
Replacing Electronic key battery ...................... 518
Fuses ........................................................520
Light bulbs............................................. 523
Tires ......................................................... 560
Reporting safety defects for U.S. owners ..........................................626
Resetting the message indicating maintenance is required ................ 480
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.