Page 483 of 628

LX570_OM_OM60Q78U_(U) 4836-3. Do-it-yourself maintenance
6
Maintenance and care ■
Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following before recharging: ●
If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable. ●
Make sure the power switch on the charge r is off when connecting and disconnecting
the charger cables to the battery. ■
After recharging/reconnecting the battery
The engine may not start. Follow the procedure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine. ●
Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.●
Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt. ●
The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the engine before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the engine will not start even after multiple attempts, contact your Lexus dealer.
WARNING ■
Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce hydrogen
gas which is flammable and explosive. To redu ce the risk of death or serious injury, take
the following precautions while working on or near battery:●
Do not cause sparks by touching the battery terminals with tools. ●
Do not smoke or light a match near the battery. ●
Avoid contact with eyes, skin and clothes. ●
Never inhale or swallow electrolyte. ●
Wear protective safety glasses when working near the battery. ●
Keep children away from the battery. ■
Where to safely charge the battery
Always charge the battery in an open area . Do not charge the battery in a garage or
closed room where there is not sufficient ventilation. 1
2
3
Page 515 of 628
5157-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises Securely attach cables or chains to
the towing hooks. Take care not to damage the vehicle
body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn th e engine switch to IGNITION ON mode.
Shift the four-wheel drive control switch to “H4”. (The center differential is
unlocked.)
Change the vehicle height to N (norma l) mode and press the height control
OFF button to end the vehicle height control operation. ( → P. 298)
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: → P. 215■
While towing
If the engine is not running, the power assist for the brakes and steering will not function,
making steering and br aking more difficult.Emergency towing procedure 1
2
3
4
5
Page 516 of 628
516 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
When towing the vehicle
■
While towing ●
When towing using cables or chains, avoid sudden starts, etc. which place excessive
stress on the towing hooks, cables or chai ns. The towing hooks, cables or chains may
become damaged, broken debris may hit people and cause serious damage. ●
Do not turn the engine switch off.
There is a possibility that the steering wheel is locked and cannot be operated.Be sure to transport the vehicle with all four
wheels raised off the ground. If the vehicle is
towed with the tires contacting the ground, the
drivetrain or related parts may be damaged,
the vehicle may fly off the truck.
Page 517 of 628
5177-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises NOTICE ■
To prevent damage to the vehicle when towing using a wheel-lift type truck●
Do not tow the vehicle from the rear when the engine switch is off. The steering lock
mechanism is not strong enough to hold the front wheels straight. ●
When raising the vehicle, en sure adequate ground cleara nce for towing at the oppo-
site end of the raised vehicle. Without ad equate clearance, the vehicle could be dam-
aged while being towed. ■
To prevent damage to the vehicle wh en towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear. ■
To prevent damage to the ve hicle during emergency towing
Do not secure cables or chains to the suspension components. ■
To avoid serious damage to your vehicle
Do not use the rear emergency towing hook.
Page 522 of 628

522 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) (Flashes)
Low speed four-wheel drive indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. ( → P. 303)
→ Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
Center differential lock indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. ( → P. 303)
→ Have the vehicle inspected by your Lexus dealer immediately.
Open door warning light (warning buzzer)
* 2
Indicates that a door is not fully closed
→ Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 4.0 gal. (15.0 L,
3.3 Imp.gal.) or less
→ Refuel the vehicle.
Driver’s seat belt reminder light (warning buzzer)
* 3
Warns the driver to fast en his/her seat belt.
→ Fasten the seat belt. (On the center panel)
Front passenger’s seat belt re minder light (warning buzzer)
* 3
Warns the front passenger to fasten his/her seat belt.
→ Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on or flashes to indi-
cate that the master warning sy stem has detected a malfunction.
→ P. 528
Tire pressure warning light
Indicates that:
•Flat tire
• Natural causes
• The tire pressure warnin g system is malfunctioning
→ Immediately stop the vehicle in a safe place.
Handling method ( → P. 525)
Power steering system warning light (warning buzzer)
Indicates a malfunction in the power steering system
→ Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
(U.S.A.)
(Flashes)
(Canada)
Parking brake indicator
Indicates that the parking brake is not fully engaged or released
→ Operate the parking brake switch once again.
This light comes on when the parking brake is not released.
* 4
If the
light turns off after the parking brak e is fully released, the system is
operating normally.Warning light Warning light/Details/Actions
Page 524 of 628

524 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) ■
SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors, side
impact sensors (rear), side imp act sensors (front d oor), safing sensor (rear), driver’s seat
belt buckle switch, driver’s se at position sensor, front passeng er’s seat belt buckle switch,
airbags, interconnecting wiring and power so urces, front passenger occupant classifica-
tion system, “AIR BAG ON” and “AIR BAG OFF” indicator lights, seat belt pretensioners
and force limiters. ( → P. 38)■
Front passenger detection sensor, seat belt reminder and warning buzzer●
If luggage is placed on the front passenger seat, the front passenger detection sensor
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sittin g in the seat.●
If a cushion is placed on the seat, the sens or may not detect a passenger, and the warn-
ing light may not operate properly. ■
If the malfunction indicator lamp comes on while driving
First check the following: ●
Is the fuel tank empty?
If it is, fill the fu el tank immediately.●
Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after severa l trips, contact your Lexus dealer as soon as
possible. ■
If the low speed four-wheel driv e indicator light or the center differential lock indicator
light blinks
Take the specified steps. ( → P. 305)
If the brake system warning light or the malf unction indicator light also comes on, or the
low speed four-wheel drive indicator light or the center differential lock indicator light
continues to blink afte r taking the specified steps, ther e may be a malfunction in the
engine, the brake system or the four-wheel dr ive system. In this case, you may not be able
to transfer between “H4” and “L4” modes, an d the center differential lock may not be
able to be locked or unlocked. Have the vehicle inspected by your Lexus dealer, immedi-
ately.
Page 542 of 628
542 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) Lay down the tire with the valve stem
facing up and install the spare wheel
cover.
Install the holding bracket, inserting
the claw into the wheel lug nut hole.
Turn the jack handle extension
clockwise to take up slack in the
chain. Then, check to ensure the claw is in the
wheel lug nut hole and the holding
bracket is centered in the wheel hub.
Holding bracket
Claw WARNING ■
Stowing the flat tire
Failure to follow steps listed under stowing the tire may result in damage to the spare
tire carrier and loss of the tire, which co uld result in death or serious injury.
Stowing the flat tire, jack and all tools 1
incorrect
correct2
1
2
Page 545 of 628

5457-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) 7
When trouble arises One of the following may be the cause of the problem: ●
One or both of the battery terminals may be disconnected. ●
The battery may be discharged. ( → P. 549)●
There may be a malfunction in the steering lock system.Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally.
Set the parking brake.
Put the shift lever in P.
Set the engine switch to the ACCESSORY mode.
Push and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle in spected by your Lexus dealer.The starter motor does not turn ove r, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function 1
2
3
4