2017 LEXUS LS600H coolant level

1162. Instrument cluster
LS600h/LS600hL_EE(OM50G20E)
Engine coolant temperature gauge
Displays the engine coolant temperature
Hybrid System Indicator
Displays hybrid system output or regeneration level (P. 119)
ECO lamp and SPORT lamp
Changes colors or brightness according to driving mode or way of driving
( P. 119)
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Odometer/trip meter and trip meter reset switches
Multi-information display
Presents the driver with a variety of driving-related data ( P. 121)
Outside temperature
Displays the outside temperature within the range of -40°C (-40°F) to 50°C
(122°F)
Odometer and trip meter display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset.
Trip meters “A” and “B” can be used to record and display different distances inde-
pendently.
Shift position and shift range
Displays the selected shift position or selected shift range ( P. 255)
Instrument panel light control switches
Tachometer
Displays the engine speed in revolutions per minute
1
2
3
4
5
6
7
8
9
10
11
12

4846-2. Maintenance
LS600h/LS600hL_EE(OM50G20E)
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends
that all repairs and service operations be carried out by authorized Lexus dealers or
repairers or other duly qualified and equipped professionals. For repairs and ser-
vices covered by your warranty, please visit an authorized Lexus dealer or repairer,
who will use genuine Lexus parts in repairing any difficulties you may encounter.
There can also be advantages in utilizing authorized Lexus dealers or repairers for
non-warranty repairs and services, as members of the Lexus network will be able to
expertly assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or anothe r duly qualified and equipped professional
will perform all of the scheduled maintenance on your vehicle reliably and economi-
cally due to their experience with Lexus vehicles.
■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. 116)
If you notice any of these clues, take your vehicle to any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as possible.
Your vehicle may need adjustment or repair.

486
LS600h/LS600hL_EE(OM50G20E)
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
12-volt battery condition (P. 502)
•Grease
• Conventional wrench
(for terminal clamp bolts)
Engine/power control unit
coolant level ( P. 498)
•“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. 495)
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine
oil)
Fuses ( P. 535)• Fuse with same amperage rating as
original
Light bulbs ( P. 541)
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser ( P. 500)

4926-3. Do-it-yourself maintenance
LS600h/LS600hL_EE(OM50G20E)
*: For right-hand drive vehicles:
They are located on the opposite side of the engine compartment.
■12-volt battery
 P. 502
Engine compartment
* *
*
Power control unit coolant res-
ervoir ( P. 499)
Engine oil level dipstick
( P. 495)
Engine oil filler cap ( P. 496)
Fuse boxes ( P. 535)
Washer fluid tank ( P. 501)
Power control unit coolant radi-
ator ( P. 500)
Electric cooling fans
Condenser ( P. 500)
Engine coolant radiator
( P. 500)
Engine coolant reservoir
( P. 498)
1
2
3
4
5
6
7
8
9
10

4986-3. Do-it-yourself maintenance
LS600h/LS600hL_EE(OM50G20E)
■Engine coolant reservoir
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the hybrid system 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. 611)
Coolant
1
2
3

4996-3. Do-it-yourself maintenance
6
Maintenance and care
LS600h/LS600hL_EE(OM50G20E)
■Power control unit coolant reservoir
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the hybrid system is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
( P. 611)
■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 [-31F])
For more details about coolant, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir caps,
drain cock and water pump.
If you cannot find a leak, have any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional, test the cap and check for leaks in the
cooling system.
1
2
3

5547-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
●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 hybrid system
●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. Cont act any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as
possible.
Visible symptoms
Audible symptoms
Operational symptoms

6127-2. Steps to take in an emergency
LS600h/LS600hL_EE(OM50G20E)
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. 493)
Water can be used in an emer-
gency if coolant is unavailable.
4
1
2
3
5