
5
1
8 7
6
5
4
3
2
9
LS600hL_U(OM50E41U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior ................. 418
Cleaning and protecting the vehicle inte rior.................. 422
6-2. Maintenance Maintenance requirements ............................ 425
General maintenance.............. 428
Emission inspection and maintenance (I/M)
programs .................................... 432
6-3. Do-it-yourself maintenance Do-it-yourself service precautions................................ 433
Hood ............................................... 436
Positioning a floor jack..............437
Engine compartment ............... 439
12-volt battery ............................. 450
Tires.................................................. 454
Tire inflation pressure ............... 464
Wheels ............................................467
Air conditioning filter ............... 469
Electronic key battery............... 472
Checking and replacing fuses............................................... 474
Headlight aim ...............................479
Light bulbs ..................................... 481 7-1. Essential information
Emergency flashe rs .................. 484
If your vehicle has to be stopped in an
emergency ................................ 485
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................................... 486
If you think something is wrong........................................... 492
If a warning light turns on or a warning buzzer
sounds ......................................... 493
If a warning message is displayed .................................... 503
If you have a flat tire (vehicles with a
spare tire) ................................... 506
If you have a flat tire (vehicles with
run-flat tires) ...............................515
If the hybrid system will not start ......................................... 517
If the shift lever cannot be shifted from P .......................519
If the parking brake cannot be released ................ 520
If the electronic key does not operate properly ..............524
If the 12-volt battery is discharged ..................................527
If your vehicle overheats ......... 530
6Maintenance and care7When trouble arises

417
Maintenance and care6
LS600hL_U(OM50E41U)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior.................. 418
Cleaning and protecting the vehicle interior .................. 422
6-2. Maintenance Maintenance requirements............................. 425
General maintena nce .............. 428
Emission inspection and maintenance (I/M)
programs .................................... 432
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ................................ 433
Hood ............................................... 436
Positioning a floor jack ............. 437
Engine compartment ............... 439
12-volt battery.............................. 450
Tires .................................................. 454
Tire inflation pressure ............... 464
Wheels ........................................... 467
Air conditioning filter ............... 469
Electronic key battery ...............472
Checking and replacing fuses ............................................... 474
Headlight aim .............................. 479
Light bulbs...................................... 481

433
6
Maintenance and care
LS600hL_U(OM50E41U)
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.
ItemsPa r t s a n d t o o l s
12-volt battery condition (P. 4 5 0 )
•Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( P. 448)
• FMVSS No.116 DOT 3 or SAE J1703
brake fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power control unit
coolant level ( P. 445)
•“To y o t a 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
For the U.S.A.:
“Toyota Super Long Life Coolant” is
pre-mixed with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is
pre-mixed with 55% coolant and
45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level ( P. 4 4 2 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 4 74 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 7 9 )• Phillips-head screwdriver

4746-3. Do-it-yourself maintenance
LS600hL_U(OM50E41U)
Turn the power switch off.
Open the fuse box cover.
Engine compartment (type A fuse box)
Remove the engine compartment
cover ( P. 440) and push the tab
in and lift the lid off.
Engine compartment (type B fuse box)
Remove the engine compartment
cover ( P. 440) and push the tab
in and lift the lid off.
Engine compartment (type C fuse box)
Remove the engine compartment
cover ( P. 440) and push the tab
in and lift the lid off.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
1
2

4756-3. Do-it-yourself maintenance
6
Maintenance and care
LS600hL_U(OM50E41U)
Engine compartment (fuse box near the power control unit)
There are high voltage parts and
wiring near the fuse box. For inspec-
tion and replacement of the fuses,
contact your Lexus dealer.
Driver’s side instrument panel
Remove the lid.
Passenger’s side instrument panel
Remove the lid.

4786-3. Do-it-yourself maintenance
LS600hL_U(OM50E41U)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (P. 4 8 1 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that indicated, or use any
other object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
■Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near
the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.

604Alphabetical index
LS600hL_U(OM50E41U)
Front turn signal lights .........................227Replacing light bulbs ......................... 481
Turn signal lever ................................. 227
Fuel ............................................................. 249 Capacity ................................................ 540
Fuel gauge ................................................99
Information ........................................... 550
Refueling.................................................249
Type ............................................. 249, 540
Warning light ...................................... 496
Fuel consumption Average fuel consumption............. 107
Average fuel consumption after refueling..................................... 107
Current fuel consumption .............. 107
Fuel filler door ........................................ 249 If the fuel filler door cannot be opened ......................... 252
Refueling.................................................249
Fuses .......................................................... 474
Garage door opener .......................... 403
Gauges ........................................................ 99
Glove box ................................................ 366 Head restraints........................................ 179
Active head restraint......................... 180
Adjustment ............................................ 179
Headlight cleaner ................................ 248
Headlights ................................................234 Adaptive Front-lighting System (AFS) ................................... 235
Automatic High Beam system .................................................. 238
Light switch........................................... 234
Replacing light bulbs .........................481
Wattage ................................................. 549
Headlight aim .........................................479
Heaters Front automatic air conditioning system...................... 336
Heated steering wheel ...................385
Outside rear view mirrors ............358
Rear air conditioning system .........351
Height control Electronically modulated air suspension......................................... 287
High-voltage components .................... 81
Hill-start assist control ....................... 289
Hood ......................................................... 436 Open ....................................................... 436
G
H

609Alphabetical index
LS600hL_U(OM50E41U)
Pre-Collision System (PCS) ............ 296Function ..................................................296
Pre-collision braking off switch................................................... 298
Warning light ...................................... 495
Radar cruise control (dynamic radar cruise control) ........................ 257
Radiator .................................................... 447
Rear air conditioning system ............ 351
Rear Cross Traffic Alert ..................... 315
Rear door sunshades .......................... 398
Rear seat Adjustment ............................................. 162
Climate control seats ...................... 388
Seat position memory........................ 177
Rear seat entertainment system
*
Rear seat relaxation system ............... 167
Rear side marker lights ...................... 234 Light switch ........................................... 234
Replacing light bulbs ......................... 481
Welcome light illumination cont rol ......................... 126
Rear sunshade ....................................... 395 Operation ............................................. 395
Reverse operation feature.............397 Rear turn signal lights .......................... 227
Replacing light bulbs .........................481
Turn signal lever ..................................227
Rear view mirror Inside rear view mirror..................... 183
Outside rear view mirrors ............. 185
Rear window defoggers .................... 358
Refueling...................................................249 Capacity.................................................540
Fuel types...................................249, 540
If the fuel filler door cannot be opened ......................... 252
Opening the fuel tank cap .............. 251
Regenerative braking.............................78
Remote Touch ....................................... 330
Remote Touch screen........................ 330
Replacing Electronic key battery ......................472
Fuses ........................................................ 474
Light bulbs...............................................481
Tires ......................................................... 506
Reporting safety defects for U.S. owners ...................................576
Resetting the message indicating maintenance
is required .............................................426
Retractable table .................................. 393
Road accident cautions ........................ 85
Run-flat tires ............................................. 515
R
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.