2011 LEXUS RX350 radiator

472
4-3. Do-it-yourself maintenance
Radiator and condenser
Check the radiator and condenser, and clear away any foreign objects.
If either of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer.
Brake fluid
nChecking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
nAdding fluid
Make sure to check the fluid type and prepare the necessary item.
CAUTION
nWhen the engine is hot
Do not touch the radiator or condenser, as they may be hot and cause burns.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703
ItemsClean funnel

5

When trouble arises
587
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. (→P. 464)
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the temperature of the engine (shown on the instru-
ment panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call your Lexus dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.
STEP1
STEP2
STEP3
STEP4
STEP5

588
5-2. Steps to take in an emergency
nOverheating
If you observe the following, your vehicle may be overheating:
lThe engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
lSteam comes out from under the hood.
CAUTION
nTo prevent an accident or injury when inspecting under the hood of your vehicle
lIf steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot, causing serious
injuries such as burns.
lKeep hands and clothing away from the fans and drive belt while the engine is
running.
lDo not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable. (→P. 599)
Have the vehicle inspected at the nearest Lexus dealer as soon as pos-
sible.
STEP6

659
Alphabetical index
Outer foot lights
Outer foot lights................................. 396
Wattage .................................................605
Outside rear view mirrors
Adjusting and folding ......................... 87
Mirror position memory ................... 70
Outside temperature display ..............411
Overhead console .............................. 406
Overhead courtesy lights
Overhead courtesy lights ............. 396
Wattage .................................................605
Overheating, Engine .......................... 587
Parking assist sensors ........................ 220
Parking brake .......................................... 164
Parking lights
Replacing light bulbs ...........................511
Switch ........................................................184
Wattage .................................................605
PCS............................................................ 240
Personal lights
Switch ...................................................... 397
Power back door .................................... 50
Power outlet ............................................. 413
Power windows........................................ 90
Pre-collision system ............................ 240
Radar cruise control ........................... 208
Radiator .................................................... 472
Radio ......................................................... 287
Rear seat
Folding down ..........................................66
Seat adjustment .....................................66
Rear turn signal lights
Replacing light bulbs ......................... 512
Wattage ................................................. 605
Rear view mirror
Compass................................................ 432
Rear view monitor system................. 227
Rear window defogger ....................... 281
Rear window wiper .............................. 202
Remote Touch*
Replacing
Electronic key battery ..................... 496
Fuses........................................................ 498
Light bulbs ................................................ 511
Tires ......................................................... 564
Wireless remote control
battery ................................................. 496
Roof luggage carrier ........................... 249
Reporting safety defects for
U.S. owners .......................................... 632
P
*: Refer to the “Navigation System Owner’s Manual”.
R

EXPLANATION OF MAINTENANCE ITEMS
MAINTENANCE
Scheduled Maintenance Log70
Engine Coolant
When inspecting, visually check
the level of the engine coolant on the
see-through reservoir. Add coolant
as necessary. When replacing, drain
and flush the cooling system and refill
with coolant. Always use Genuine
Toyota Super Long-Life Coolant or
similar high-quality non-silicate,
nonamine, non-nitrate, non-borate
ethylene-glycol coolant with long-life
hybrid organic acid technology (i.e.,
a combination of low phosphates and
organic acids). A qualified technician
should perform these operations.
Check the radiator and condenser
for blockage by leaves, dirt or insects
and clean if necessary. Also check
the hose connections for corrosion
and condition of installation.
Note:Initial replacement of engine
coolant is at 120 months/100,000
miles. Replace every 60 months/
50,000 miles thereafter.
Engine Oil and Oil Filter
Replace the oil filter and drain and
refill the engine oil at specified inter-
vals. SAE 0W-20 oil is the best
choice for good fuel economy and
good starting in cold weather. If SAE
0W-20 is not available, SAE 5W-20
may be used; however, it must be
replaced with SAE 0W-20 at the next
oil change. See your Lexus dealer for
oil specifically formulated for your
vehicle’s engine. For instructions on
how to reset the reminder light, refer
to your Owner’s Manual.
Note:If you do the majority of your
driving under any of the special oper-
ating conditions indicated on page
44, you should replace the engine oil
and oil filter every six months or
5,000 miles, regardless of the oil
used or the certification of the vehicle.
Exhaust Pipes and Mountings
Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration and damage. Start
the engine and listen carefully for
any exhaust leakage. Tighten connec-
tions and replace parts as necessary.
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