Page 518 of 708

5186-2. Maintenance
LS460/LS460L_GE (OM50G06E)
What about do-it-yourself maintenance?
Many of the maintenance items are easy to do yourself if you have a little mechan-
ical ability and a few basic automotive tools. Simple instructions for how to per-
form them are presented in this section.
Note, however, that some maintenance tasks require special tools and skills.
These are best performed by qualified technicians. Even if you are an experi-
enced do-it-yourself mechanic, we recommend that repairs and maintenance be
conducted by your Lexus dealer who will keep a record of maintenance on your
vehicle. This record could be helpful should you ever require Warranty Service.
■Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that indi-
cate service is needed. Some important clues are:
●Engine missing, stumbling or pinging
●Appreciable loss of power
●Strange engine noises
●A fluid leak under the vehicle (However, water dripping from the air conditioning
system after use is normal.)
●Change in exhaust sound (This may indicate a dangerous carbon monoxide leak.
Drive with the windows open and have the exhaust system checked immediately.)
●Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
●Vehicle pulls to one side when driven straight on a level road
●Strange noises related to suspension movement
●Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches the
floor, vehicle pulls to one side when braking
●Engine coolant temperature continually higher than normal ( P. 125)
If you notice any of these clues, take your vehicle to your Lexus dealer as soon as
possible. Your vehicle may need adjustment or repair.
Do-it-yourself maintenance
Page 533 of 708

533
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsParts and tools
Battery condition (P. 549)
•Warm water
• Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
•Distilled water
Engine coolant level ( P. 547)
•“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 technol-
ogy
“Toyota Super Long Life Coolant” is
pre-mixed with 50% coolant and
50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level ( P. 544)
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine
oil)
Fuses ( P. 579)• Fuse with same amperage rating as
original
Light bulbs ( P. 584)
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser ( P. 549)
Page 539 of 708
5396-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
2WD models
For right-hand drive vehicles:
The battery and the fuse box in front of the battery are located on the opposite side
of the engine compartment.
Engine compartment
Battery ( P. 549)
Engine oil level dipstick
( P. 544)
Air cleaners ( P. 554)
Engine oil filler cap ( P. 545)
Washer fluid tank ( P. 553)
Electric cooling fans
Condenser ( P. 549)
Radiator ( P. 549)
Engine coolant reservoir
( P. 547)
Fuse boxes ( P. 579)
1
2
3
4
5
6
7
8
9
10
Page 540 of 708
5406-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
AWD models
Battery (P. 549)
Engine oil level dipstick
( P. 544)
Air cleaners ( P. 554)
Engine oil filler cap ( P. 545)
Washer fluid tank ( P. 553)
Electric cooling fans
Condenser ( P. 549)
Radiator ( P. 549)
Engine coolant reservoir
( P. 547)
Fuse boxes ( P. 579)
1
2
3
4
5
6
7
8
9
10
Page 547 of 708
5476-3. Do-it-yourself maintenance
6
Maintenance and care
LS460/LS460L_GE (OM50G06E)
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. 641)
Engine coolant
1
2
3
Page 548 of 708

5486-3. Do-it-yourself maintenance
LS460/LS460L_GE (OM50G06E)
■Coolant 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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized
water. (Minimum temperature: -35 C [-31F])
For more details about engine coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, 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 system.
CAUTION
■When the engine is hot
Do not remove the engine coolant reservoir cap. ( P. 644)
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 cooling. 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.
Page 603 of 708
6037-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher
than normal.
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the
floor
If you think something is wrong
If you notice any of the followin g symptoms, your vehicle probably
needs adjustment or repair. Contact your Lexus dealer as soon as pos-
sible.
Visible symptoms
Audible symptoms
Operational symptoms
Page 642 of 708
6427-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
( P. 541)
Water can be used in an emergency if
coolant is unavailable.
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5