2011 LEXUS RX350 cooling

504
4-3. Do-it-yourself maintenance
35AFS7. 5 AAdaptive front-lighting system
36BK/UP LP7. 5 ABack-up lights
37HEATER NO. 27. 5 AAir conditioning system, AWD system
38ECU IG110 A
Adaptive front-lighting system, head-
light cleaner, cooling fan, cruise con-
trol, vehicle stability control, vehicle
dynamics integrated management
39EFI NO. 210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
40F/ P U M P15 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
41DEICER25 AWindshield wipers and washer
42STOP7. 5 A
Vehicle stability control, vehicle
dynamics integrated management,
high mounted stoplight
43TOW I N G BAT T20 ATrailer battery
44TOW I N G30 ATrailer lights
45FILTER10 ACondenser
46IG1 MAIN30 AECU IG1, BK/UP LP,
HEATER NO. 2, AFS
47H-LP RH HI15 ARight-hand headlight (high beam)
48H-LP LH HI15 ALeft-hand headlight (high beam)
49BIXENON10 ADischarge headlight
50H-LP RH LO15 ARight-hand headlight (low beam)
51H-LP LH LO15 ALeft-hand headlight (low beam)
FuseAmpereCircuit

586
5-2. Steps to take in an emergency
CAUTION
nAvoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
lMake sure each jumper cable is connected to the correct terminal.
lDo not allow the “+” and “-” terminals of the jumper cables to come into contact
with each other.
lDo not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
nBattery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery:
lWhen working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
lDo not lean over the battery.
lIn the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
lAlways wash your hands after handling the battery support, terminals, and other
battery-related parts.
lDo not allow children near the battery.
NOTICE
nWhen handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or belt.

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

599
6-1. Specifications
6

Vehicle specifications
Cooling system
Ignition system
Capacity
Without towing pack-
age9.1 qt. (8.6 L, 7.6 Imp. qt.)
With towing package10.0 qt. (9.5 L, 8.3 Imp. qt.)
Coolant type
Use either of the following.

654
Alphabetical index
Cleaning
Exterior................................................... 444
Interior ..................................................... 447
Seat belts................................................448
Clock .......................................................... 410
Coat hooks ............................................... 419
Compass .................................................. 432
Condenser .............................................. 472
Console box ...........................................404
Cooling system
Engine overheating ..........................587
Cornering assist sensors ...................220
Cruise control
Cruise control ..................................... 204
Dynamic radar cruise control .....208
Cup holders ............................................402
Curtain shield airbags.......................... 109
Customizable features ........................ 621
Daytime running light system ............187
Defogger
Rear window ......................................... 281
Side mirrors..............................................87
Dimensions ............................................. 594
Dinghy towing........................................ 270
Display
Multi-information display ................ 173
Trip information.................................... 176
Warning message ............................ 545
Do-it-yourself maintenance ............. 457
Door courtesy lights
Door courtesy lights ........................ 396
Wattage ................................................. 605
Door lock
Back door ................................................ 50
Side door................................................... 47
Wireless remote control ................... 43
Door pockets .......................................... 401
Doors
Back door ................................................ 50
Door windows ....................................... 90
Door lock .................................. 31, 43, 47
Power back door ................................. 50
Side door................................................... 47
Side mirrors..............................................87
Driver's seat belt reminder light ..... 537
Driving
Break-in tips........................................... 145
Correct posture................................... 107
Utility vehicle precautions..............244
Procedures............................................. 144
Winter driving tips ............................ 254
Driving position memory...................... 70
D

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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