ECU Lexus ES350 2017 s Service Manual

146
ES350_OM_OM33C68U_(U)4-1. Before driving
WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift lever or
depress the accelerator pedal, this could cause an accident or fire due to engine over-
heating. Additionally, if the vehicle is park ed in a poorly ventilated area, exhaust gases
may collect and enter the vehicle, leadin g to death or a serious health hazard.
■When braking
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause one side of
the vehicle to brake differently than the other side. Also, the parking brake may not
securely hold the vehicle.
●If the power brake assist function does not operate, do not follow other vehicles
closely and avoid hills or sharp turns that require braking.
In this case, braking is still possible, but the brake pedal should be depressed more
firmly than usual. Also, the braking distance will increase. Have your brakes fixed
immediately.
●Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted brakes.
●The brake system consists of 2 individual hydraulic systems; if one of the systems fails,
the other will still operate. In this case, the brake pedal should be depressed more
firmly than usual and the braking distance will increase. Have your brakes fixed imme-
diately.

150
ES350_OM_OM33C68U_(U)4-1. Before driving
WA R N I N G
■Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed properly, may block the
driver’s vision, or may result in items hitting
the driver or passengers, possibly causing
an accident.
●Stow cargo and luggage in the trunk whenever possible.
●Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rear seats (when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
• In front of the navigation system screen or Lexus Display Audio system screen
●Secure all items in the occupant compartment.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehicle weight rating.
●Even if the total load of occupant’s weight and the cargo load is less than the total load
capacity, do not apply the load unevenly. Improper loading may cause deterioration
of steering or braking control which may cause death or serious injury.

156
ES350_OM_OM33C68U_(U)4-2. Driving procedures
If the engine is stopped with the shift le
ver in a position other than P, the engine
switch will not be turned off but instead be turned to ACCESSORY mode. Per-
form the following procedure to turn the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is displayed on the multi-information display
and then press the engine switch once.
Check that “Turn Off Vehicle” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON
mode (the engine is not running) for more than an hour with the shift lever in P, the engine
switch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI-
TION ON mode for long periods of ti me when the engine is not running.
■Electronic key battery depletion
→P. 9 3
■Conditions affecting operation
→P. 110
■Notes for the entry function
→P. 111
■If the engine does not start
●The engine immobilizer system ma y not have been deactivated. (→P. 6 5 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The engine may not start if the shift lever is
displaced out of P. “Shift to P position to St art” will be displayed on the multi-information
display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel
will be locked due to the steering lock func tion. Operating the engine switch again auto-
matically cancels the steering lock.
When stopping the engine with the sh ift lever in a position other than P
1
2
3
4

177
ES350_OM_OM33C68U_(U)4-4. Refueling
4
Driving
Opening the fuel tank cap
●Turn the engine switch off and ensure that all the doors and windows are
closed.
●Confirm the type of fuel.
■Fuel types
→
P. 5 2 5
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that only accom-
modates the special nozzle on unleaded fuel pumps.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
WA R N I N G
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before opening the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any person or object that is statically charged.
This may cause static electricity to build up , resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.

254
ES350_OM_OM33C68U_(U)4-5. Using the driving support systems
■The Blind Spot Monitor func
tion is operational when
●The BSM main switch is set to on
●Vehicle speed is greater than approximately 10 mph (16 km/h).
■The Blind Spot Monitor function will detect a vehicle when
●A vehicle in an adjacent lane overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under which the Blind Spot Monitor function will not detect a vehicle
The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles traveling in the opposite direction
●Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Following vehicles that are in the same lane*
●Vehicles driving 2 lanes across from your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Blind Spot Monitor function may not function correctly
●The Blind Spot Monitor function may not detect vehicles correctly in the following con-
ditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and the vehicle
that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip in the road
etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from
your vehicle
• When the vehicle that enters the detection area is traveling at about the same speed as your vehicle
• When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Directly after the BSM main switch is set to on
• When items such as a bicycle carrier are installed on the rear of the vehicle
●Instances of the Blind Spot Monitor function unnecessarily detecting a vehicle and/or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall etc.
• When there is only a short distance between your vehicle and a following vehicle
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your vehi- cle enters the detection area
• When items such as a bicycle carrier are installed on the rear of the vehicle

ES350_OM_OM33C68U_(U)
3015-4. Using the radio
5
Lexus Display Audio system
It is prohibited to copy, decompile, disassemble, reverse engineer, hack, manipulate, or
otherwise make available any technology or software incorporated in receivers compat-
ible with the XM Satellite Radio System or that support the XM website, the Online Ser-
vice or any of its content. Furthermore, the AMBE
® voice compression software
included in this product is protected by intellectual property rights including patent
rights, copyrights, and trade secrets of Digital Voice Systems, Inc.
Note: this applies to XM receivers only and not XM Ready devices.
■If the satellite radio does not operate normally
If a problem occurs with the XM tuner, a message will appear on the screen. Refer to the
table below to identify the problem, and take the suggested corrective action.
Contact the XM Listener Care Center at 1-877-447-0011 (U.S.A.) or 1-877-438-9677
(Canada).
SAT Check Antenna
The XM antenna is not connected. Check whether the XM
antenna cable is attached securely.
There is a short-circuit in the antenna or the surrounding
antenna cable. See a Lexus certified dealer.
SAT Ch Unauthorized
You have not subscribed to XM Satellite Radio. The radio is
being updated with the latest encryption code. Contact XM
Satellite Radio for subscription information. When a con-
tract is canceled, you can choose “Ch000” and all free-to-
air channels.
The premium channel you selected is not authorized. Wait
for about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel. To listen to the premium channel,
contact XM Satellite Radio.
SAT No SignalThe XM signal is too weak at the current location. Wait until
your vehicle reaches a location with a stronger signal.
SAT LoadingThe unit is acquiring audio or program information. Wait
until the unit has received the information.
SAT Channel Off AirThe channel you selected is not broadcasting any program-
ming. Select another channel.
-----There is no song/program title or artist name/feature asso-
ciated with the channel at that time. No action is required.
SAT Chan Unavailable
The channel you selected is no longer available. Wait for
about 2 seconds until the radio returns to the previous
channel or “Ch001”. If it does not change automatically,
select another channel.

320
ES350_OM_OM33C68U_(U)5-7. Connecting Bluetooth
®
Registering a Bluetooth® device
Turn the Bluetooth® connection setting of your device set to on.
Go to “Bluetooth
* Setup”: “MENU” button → “Setup” → “Bluetooth*”
Move the controller to the left and then select “Add Device”.
When this screen is displayed,
search for the device name dis-
played on this screen on your
Bluetooth
® device.
For operation of the Bluetooth® device,
see the manual that comes with your
Bluetooth
® device.
Register the Bluetooth® device
using your Bluetooth® device.
A PIN code are not required for SSP (Secure Simple Pairing) compatible Bluetooth®
devices. Depending on the device, you may need to select Yes to register, or No to
cancel on the device.
If an error message is displayed, follow the guidance on the screen to try again.
*: Bluetooth is a registered trad emark of Bluetooth SIG, Inc.
Go to “Bluetooth* Setup”: “MENU” button → “Setup” → “Bluetooth*”
Move the controller to the left and then select “Remove Device”.
Select the device to remove.
*: Bluetooth is a registered trad emark of Bluetooth SIG, Inc.
Bluetooth® compatible phones (HFP) and po rtable audio players (AVP) can
be registered simultaneously. You can register up to 5 Bluetooth® devices.
How to register a Bluetooth® device
1
2
3
4
5
Removing a Bluetooth® device
1
2
3

ES350_OM_OM33C68U_(U)
3495-11. Bluetooth®
5
Lexus Display Audio system
XIn other situations
Even though all conceivable measures have been taken, the symptom status does not
change.
The cellular phone is not close enough to this system.
→Bring the cellular phone closer to this system.
The cellular phone is the most likely cause of the symptom.
→Turn the cellular phone off, remove and reinstall the battery pack, and then
restart the cellular phone.
→ Enable the cellular phone’s Bluetooth
® connection.
→ Stop the cellular phone’s security so ftware and close all applications.
→ Before using an application installed on the cellular phone, carefully check its
source and how its operation might affect this system.

386
ES350_OM_OM33C68U_(U)6-3. Using the storage features
Trunk features
Raise the hooks when needed.
The cargo hooks are provided for
securing loose items.
Cargo hooks
WA R N I N G
To avoid injury, always return the cargo hooks to their stowed positions when not in use.
Grocery bag hooks

395
ES350_OM_OM33C68U_(U)6-4. Using the other interior features
6
Interior features
Garage door opener
The HomeLink® wireless control system in your vehicle has 3 buttons which can
be programmed to operate 3 different devices. 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
® icon
Illuminates 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 other devices to prevent injury or other
potential harm.
●It is recommended that a new battery be placed in the remote control
transmitter for more accurate programming.
●Garage door opener motors manufactured 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 progra mmed to operate garage doors, gates,
entry doors, door locks, home lighting systems, security systems, and other
devices.
Programming HomeLink®
1
2
3
4