ECU LEXUS LX570 2018 Repair Manual

427
LX570_OM_OM60Q78U_(U) 5-5. Using the storage features
5
Interior features
Luggage compartment features Raise the hook to use. The cargo hooks are provided for
securing loose items.
To hang the cargo net, use the cargo
net hooks and rear tie-down hooks. The cargo net itself is not included as an
original equipment.
Remove the cover.Cargo hooks
Cargo net hooks
Storage compartment (if equipped)

445
LX570_OM_OM60Q78U_(U) 5-6. Using the other interior features
5
Interior features
Garage door opener The HomeLink ®
wireless control system in your vehicle has 3 buttons which can
be programmed to operate 3 different de vices. Refer to the programming meth-
ods on the following pages to determine the method which is appropriate for the
device.
HomeLink ®
indicator light
Garage door operation indicators
HomeLink ®
iconIlluminates while HomeLink ®
is operat-
ing.
Buttons ■
Before programming HomeLink ®
●
During programming, it is possible that garage doors, gates, or other
devices may operate. For this reason, make sure that people and objects
are clear of the garage door or othe r devices to prevent injury or other
potential harm. ●
It is recommended that a new batter y be placed in the remote control
transmitter for more accurate programming. ●
Garage door opener motors manufa ctured after 1995 may be equipped
with rolling code protection. If this is the case, you may need a stepladder
or other sturdy, safe device to reach the “Learn” or “Smart” button on the
garage door opener motor.The garage door opener can be programmed to operate garage doors, gates,
entry doors, door locks, home lightin g systems, security systems, and other
devices.
Programming HomeLink ®
1
2
3
4

452
LX570_OM_OM60Q78U_(U) 5-6. Using the other interior features
LEXUS Enform Safety Connect ∗
Microphone
LED light indicators
“SOS” button
∗ : If equippedSafety Connect is a subscription-based telematics service that uses Global
Positioning System (GPS) data and embe dded cellular techno logy to provide
safety and security features to subscribers. Safety Connect is supported by
Lexus’ designated response center, wh ich operates 24 hours per day, 7 days
per week.
Safety Connect service is available by su bscription on select, telematics hard-
ware-equipped vehicles.
By using the Safety Connect service, you are agreeing to be bound by the
Telematics Subscription Service Agre ement and its Terms and Conditions, as
in effect and amended from time to time, a current copy of which is available
at Lexus.com. All use of the Safety Co nnect service is subject to such then-
applicable Terms and Conditions.
System components 1
2
3

LX570_OM_OM60Q78U_(U) 4676-2. Maintenance
6
Maintenance and care Vehicle interior Items Check points
Accelerator pedal • The accelerator pedal should move smoothly
(without uneven pedal effort or catching).
Automatic transmission
“Park” mechanism • When parked on a slope and the shift lever is in P, is
the vehicle securely stopped?
Brake pedal • Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clearance
from the floor? ( → P. 564)
• Does the brake pedal have the correct amount of
free play? ( → P. 564)
Brakes • The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should no t get too close to the floor
when the brakes are applied.
Head restraints • Do the head restraints move smoothly and lock
securely?
Indicators/buzzers • Do the indicators and buzzers function properly?
Lights • Do all the lights come on?
Seat belts • Do the seat belts operate smoothly?
• The seat belts should not be damaged.
Seats • Do the seat controls operate properly?
Steering wheel • Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount of
free play?
• There should not be any strange sounds coming
from the steering wheel.

474
LX570_OM_OM60Q78U_(U) 6-3. Do-it-yourself maintenance
■
Removing the engine compartment cover
■
Installing the clips
Push up center portion
Insert
PressEngine compartment cover
1
2
3
NOTICE ■
After installing an engi ne compartment cover
Make sure the cover is securely installed in its original position.

511
LX570_OM_OM60Q78U_(U) 7
When trouble arises 7-1. Essential information
If your vehicle has to be stopped in an emergencySteadily step on the brake pedal with both feet and firmly depress it.Do not pump the brake pedal repeatedly as this will increase the effort required to
slow the vehicle.
Shift the shift lever to N. 
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine. 
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle speed as
much as possible.
To stop the engine, press and hold
the engine switch for 2 consecutive
seconds or more, or press it briefly 3
times or more in succession.
Stop the vehicle in a safe place by the road.Only in an emergency, such as if it becomes impossible to stop the vehicle in
the normal way, stop the vehicl e using the following procedure:1
2
3
4
3
Press and hold for 2 seconds or more,
or press briefly 3 times or more4
WARNING ■
If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake pedal
harder to depress and the steering wheel heav ier to turn. Decelerate as much as possi-
ble before turning off the engine. 5

514 7-2. Steps to take in an emergency
LX570_OM_OM60Q78U_(U) If your vehicle is transported by a flat-
bed truck, it should be tied down at the
locations shown in the illustration.
If you use chains or cables to tie down
your vehicle, the angles shaded in black
must be 45 ° .
Do not overly tighten the tie downs or
the vehicle may be damaged.
If a tow truck is not available in an em ergency, your vehicle may be temporarily
towed using cables or chains secured to the emergency towing hooks. This
should only be attempted on hard su rfaced roads for at most 50 miles (80 km)
at under 18 mph (30 km/h).
A driver must be in the vehicle to st eer and operate the brakes. The vehicle’s
wheels, drive train, axles, steering an d brakes must be in good condition.Using a flatbed truck
Emergency towing

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

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.

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.