2015 LEXUS LS600H headlights

5177-2. Steps to take in an emergency
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When trouble arises
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (P. 5 2 6 )
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system. ( P. 8 8 )
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctio ning due to an electrical problem
such as electronic key battery de pletion or a blown fuse. However,
depending on the type of malfuncti on, an interim measure is available
to start the hybrid system. ( P. 5 1 8 )
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 5 2 7 )
●The 12-volt battery terminal connecti ons may be loose or corroded.
If the hybrid system will not start
Reasons for the hybrid system not st arting vary depending on the situa-
tion. Check the following and perf orm the appropriate procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 2 1 6 )
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

5187-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
One of the following may be the cause of the problem:
●One or both of the 12-volt battery terminals may be disconnected.
●The 12-volt battery may be discharged. ( P. 5 2 7 )
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the hybrid system does not start, the following steps can be used as
an interim measure to star t the hybrid system if the power switch is func-
tioning normally:
Turn the power switch to ON mode ( P. 217) and check that the park-
ing brake is set.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch fo r about 15 seconds while depressing
the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
The interior lights and headlights do not turn on, or the horn does
not sound.
Emergency start function
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5287-2. Steps to take in an emergency
LS600hL_U(OM50E41U)
Maintain the engine speed of the second vehicle and start the hybrid
system of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator co mes on. If the indicator does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the
exact reverse order from wh ich they were connected.
Once the hybrid system starts, have the vehicle inspected at your Lexus
dealer as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■When the 12-volt battery is removed or discharged
The hybrid system may not start.
(  P. 4 5 1 )
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain elec-
trical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery recharges
automatically while the hybrid system is operating.)
■When recharging or replacing the 12-volt battery
●Make sure that the key is not inside the vehicle when recharging or replacing the
12-volt battery. The key may be locked in the vehicle if the alarm is activated.
(  P. 9 1 )
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
■If the 12-volt battery is discharged
The information stored in the computer will be deleted.
If the 12-volt battery is discharged, have the vehicle inspected by your Lexus dealer.
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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
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