2011 LEXUS RX350 coolant level

452
4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryCheck the indicator and
connections. (→P. 4 74 )
Brake fluidIs the brake fluid at the correct level?
(→P. 4 7 2 )
Engine coolantIs the engine coolant at the correct
level?(→P. 4 7 0 )
Engine oilIs the engine oil at the correct level?
(→P. 4 6 6 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenser/hoses
The radiator and condenser should
be free from foreign objects.
(→P. 4 7 2 )
Wa s h e r f l u i dIs there sufficient washer fluid?
(→P. 4 7 7 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommended that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

463
4-3. Do-it-yourself maintenance
4

Maintenance and care
Engine compartment
Engine oil filler cap
(→P. 466)
Engine oil level dipstick
(→P. 466)
Battery (→P. 4 74 )
Brake fluid reservoir
(→P. 4 7 2 )
Fuse box (→P. 4 9 8 )
Engine coolant reservoir
(→P. 470)
Condenser (→P. 4 7 2 )
Radiator (→P. 4 7 2 )
Electric cooling fans
Washer fluid tank
(→P. 477)

470
4-3. Do-it-yourself maintenance
Engine coolant
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (→P. 5 8 7 )
nCoolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life
hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Minimum temperature: -31°F [-35°C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45%
deionized water. (Minimum temperature: -44°F [-42°C])
For more details about coolant, contact your Lexus dealer.

471
4-3. Do-it-yourself maintenance
4

Maintenance and care
nIf the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, radiator cap, drain cock and water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in
the cooling systems.
CAUTION
nWhen the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing burns or other injuries.
NOTICE
nWhen 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.
nIf you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.

5

When trouble arises
531
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
nVisible symptoms
lFluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
lFlat-looking tires or uneven tire wear
lEngine coolant temperature gauge needle continually points
higher than normal.
nAudible symptoms
lChanges in exhaust sound
lExcessive tire squeal when cornering
lStrange noises related to the suspension system
lPinging or other noises related to the engine
nOperational symptoms
lEngine missing, stumbling or running rough
lAppreciable loss of power
lVehicle pulls heavily to one side when braking
lVehicle pulls heavily to one side when driving on a level road
lLoss of brake effectiveness, spongy feeling, pedal almost touches
the floor

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

Introduction
GENERAL MAINTENANCE AND REGULAR USE
MAINTENANCE
42
In addition to scheduled maintenance,
your Lexus requires ongoing general
maintenance such as fluid checks and
visual inspections. The recommended
guidelines for inspections are listed
below. Please refer to the “Mainte-
nance” section of the Owner’s Manual
for a detailed description of inspec-
tion procedures.
Every 30 Days
At least once every 30 days, perform
these inspections:
•Check engine oil level using
the dipstick
•Visually check engine coolant
level on the see-through
reservoir
•Visually check brake fluid level
on the see-through reservoir
•Visually check condition of
battery
•Check level of windshield
washer fluid
•Check tire pressure
•Check tires for damage
and wear
•Check installation of driver’s
floor mat
After a Car Wash
•Check installation of driver’s
floor mat
After Off-Road Driving
Whenever you drive off-road through
deep sand, mud or water, perform
these inspections daily:
•Check axle shaft boots
•Check ball joints and dust covers
•Check brake lines and hoses
•Check brake pads/rotors and
parking brake linings/drums
•Check differential oil
•Check engine air filter
•Check nuts and bolts on chassis
•Check steering linkage and
boots
•Check transfer case oil
(AWD models)
•Check transmission fluid
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SCHEDULED MAINTENANCE LOG

MAINTENANCE
Scheduled Maintenance Log49
18 Months or 15,000 Miles
Clean air conditioner filter
Inspect and adjust all fluid levels
Replace Smart Key battery
Reset maintenance reminder light
Re-torque nuts and bolts of drive shaft (AWD)
Rotate tires
Visually inspect brake pads, calipers and rotors
Check installation of driver’s floor mat
Road-test vehicle
Inspect the following:
___ Axle shaft boots
___Ball joints and dust covers
___Body
___Brake lines and hoses
___Engine coolant (see page 70)
___Exhaust pipes and mountings
Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operating
conditions, you should also replace the engine oil with 0W-20 oil and replace the oil filter. See page 44 for
conditions that apply. Some conditions require additional maintenance. See below.
If you drive primarily under either of these special operating conditions, perform these
additional items:
Driving off-road, on dirt roads or on dusty roads:
Inspect engine air filter
Tighten nuts and bolts on chassis
To wing a trailer, using a car-top carrier or heavy vehicle loading:
R eplace rear differential oil (AWD)
Replace transfer case oil (AWD)
Tighten nuts and bolts on chassis ___R ack and pinion assembly
___Rear differential oil (AWD)
___Steering linkage and boots
___Transfer case oil (AWD)
Date: ___________________________ Mileage: __________________________
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