Page 493 of 632

LX570_OM_OM60N01U_(U)
4936-3. Do-it-yourself maintenance
6
Maintenance and care
For vehicles sold in Canada
WA R N I N G
■Tire pressure warning system operation
The tire pressure warning system may not provide warning immediately if a tire bursts
or if sudden air leakage occurs.
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light may
not come on even if the tire inflation pressu re is low, or it may come on when the tire
inflation pressure is actually normal.
Page 527 of 632

5277-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
*1: Brake system warning buzzer: The buzzer sounds to indicate that the brake fluid level is low (with the vehicle
reached a speed of 3 mph [5 km/h]).
*2: Open door warning buzzer: The open door warning buzzer sounds to al ert one or more of the doors is not fully
closed (with the vehicle having reached a speed of 3mph [5 km/h]).
*3: Driver’s seat belt buzzer: The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is not
fastened. Once the engine switch is turned to IGNITION ON mode, the buzzer
sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h), the buzzer
sounds once. If the seat belt is still unfast ened after 24 seconds, the buzzer will sound
intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that his or
her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a speed of
12 mph (20 km/h). If the seat belt is still unfastened after 24 seconds, the buzzer will
sound intermittently for 10 seconds. Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
*4: Parking brake engaged warning buzzer: A buzzer sounds to indicate that the parking brake is still engaged (with the vehicle
having reached a speed of 3 mph [5 km/h]).
Brake system warning light Indicates a malfunction in:
• The electronically controlled brake system
• The parking brake system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details/Actions
Page 548 of 632

5487-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
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. 5 5 3 )
●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 following 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 inspected by your Lexus dealer.
The starter motor does not turn over, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4
Page 551 of 632

5517-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch will
turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the
multi-information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus dealer.
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. ( P. 5 0 3 )
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above. The engine does
not start and modes will be changed each time the switch is pressed. ( P. 2 0 6 )
■Alarm
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the alarm
may be triggered. ( P. 7 8 )
■When the electronic key does not work properly
●Make sure that the smart access system wi th push-button start has not been deacti-
vated in the custom ization setting. If it is off, turn the function on.
(Customizable features: P. 585)
●Check if battery-saving mo de is set. If it is set, cancel the function. ( P. 1 3 4 )
Starting the engine
1
2
3
4
3
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5547-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors with the engine switch off.
Maintain the engine speed of the second vehicle and turn the engine switch to
IGNITION ON mode, then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order in which they were connected.
Once the engine starts, have the vehicle checked at your Lexus dealer, as soon
as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharg e and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When the battery is removed or discharged
The power back door must be initialized. ( P. 1 2 6 )
4
5
6
7
Page 559 of 632
559
LX570_OM_OM60N01U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to help pro-
vide traction.
Restart the engine.
Shift the shift lever to the D or R position and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
■Extra high mode
P. 3 0 1
Carry out the following procedures if the tires spin or the vehicle becomes
stuck in mud, dirt, or snow:
Press to turn off Active TRAC.
1
2
3
4
5
Page 594 of 632
594
LX570_OM_OM60N01U_(U)8-2. Customization
■Drive mode customization (
P. 2 8 6 )
■Tu r n s i g n a l l e v e r ( P. 2 1 6 )
FunctionDefault settingCustomized
setting
Po w e r t r a i nNormalEcoO——Po w e r
ChassisNormalSportO——Comfort
Automatic air conditioning
systemNormalEcoO——
123
FunctionDefault settingCustomized setting
The number of times the
turn signal lights flash auto-
matically when the turn sig-
nal lever is moved to the
first position during a lane
change
3
4
——O
5
6
7
Off
123
Page 610 of 632

610
LX570_OM_OM60N01U_(U)
ON/OFF (maintenez enfoncé pendant
quelques secondes)
Le voyant RSCA OFF s’allume (unique-
ment lorsque le contacteur du moteur
est en mode IGNITION ON).
La fonction de détection des tonneaux
des coussins gonflables en rideau et des
dispositifs de tension des ceintures de
sécurité se réactivera automatiquement
chaque fois que le contacteur du
moteur sera placé en mode IGNITION
ON.
WA R N I N G
■Modification et mise au rebut des composants du système de coussins gonflables
SRS
Ne mettez pas votre véhicule au rebut et n’effectuez aucune des modifications suiva-
ntes sans d’abord consulter votre concessionnaire Lexus. Les coussins gonflables SRS
pourraient fonctionner de manière incorrecte ou se déployer (gonfler) accidentelle-
ment, ce qui serait susceptible d’occasion ner des blessures graves, voire mortelles.
●Installation, retrait, démontage et réparation des coussins gonflables SRS
●Réparations, modifications, retrait ou remplacement du volant, du tableau de bord,
de la planche de bord, des sièges, du capitonnage des sièges, des montants avant,
latéraux et arrière ou des brancards de pavillon
●Réparations ou modifications de l’aile avant, du pare-chocs avant ou du côté de l’hab-
itacle
●Installation d’une protection de calandre (barre safari, barre kangourou, etc.), de
lames de déneigement, de treuil s ou d’un porte-bagages de toit
●Modifications du système de suspension du véhicule
●Installation d’appareils électroniques tels qu’un émetteur-récepteur radio ou un lect-
eur de CD
●Modifications à votre véhicule pour une personne aux capacités physiques réduites
Désactivation des coussins gonflables en rideau si le véhicule fait des
tonneaux
WA R N I N G
■Pour la conduite normale
Assurez-vous que le voyant RSCA OFF n’es t pas allumé. S’il reste allumé, le coussin
gonflable en rideau ne se déploiera pas en cas d’accident, ce qui pourrait occasionner
des blessures graves, voire mortelles.