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4-2. Driving procedures
■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 “START STOP ENGINE” switch will automatically turn off. However, this func-
tion cannot entirely prevent 12-volt batter y discharge. Do not leave the vehicle with
the “START STOP ENGINE” switch in ACCESSORY or IGNITION ON mode for
long periods of time when the engine is not running.
■Electronic key battery depletion
P. 1 3 4
■Conditions affecting operation
P. 1 3 0
■Notes for the entry function
P. 1 3 1
■If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 8 0 )
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 Start” will be displayed on the multi-
information display.
■Steering lock
After turning the “START STOP ENGINE” switch off and opening and closing the
doors, the steering wheel will be locked due to the steering lock function. Operating
the “START STOP ENGINE” switch again automatically cancels the steering lock.
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ES350 300h_OM_OM33A01U_(U)
2014-2. Driving procedures
4
Driving
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the engine is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the engine. After about 10 seconds, the steering lock motor
will resume functioning.
■When “Check Access System with Elec. Key” is displayed on the multi-information
display
The system may be malfunctio ning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the electronic key battery is depleted
P. 7 1 0
■Operation of the “START STOP ENGINE” switch
●When operating the “START STOP ENGINE” switch, one short, firm press is
enough. If the switch is pressed improper ly, the engine may not start or the “START
STOP ENGINE” switch mode may not chan ge. It is not necessary to press and
hold the switch.
●If attempting to restart the engine immediately after turning the “START STOP
ENGINE” switch off, the en gine may not start in some cases. After turning the
“START STOP ENGINE” switch off, please wait a few seconds before restarting
the engine.
■If the smart access system with push-but ton start has been deactivated in a cus-
tomized setting
P. 8 0 2
■Odometer and trip meter display
When the “START STOP ENGINE” switch is turned off, the odometer or trip meter
display will extinguish afte r approximately 30 seconds.
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
“START STOP ENGINE” switch while turning
the steering wheel left and right.
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ES350 300h_OM_OM33A01U_(U)
2074-2. Driving procedures
4
Driving
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON mode
(the hybrid system is not operating) for more than an hour with the shift lever in P, the
“POWER” switch will automatically turn off. However, this function cannot entirely
prevent 12-volt battery discharge. Do not leave the vehicle with the “POWER”
switch in ACCESSORY or ON mode for long periods of time when the hybrid sys-
tem is not operating.
■Sounds and vibrations specific to a hybrid vehicles
P. 7 3
■Electronic key battery depletion
P. 1 3 4
■When the ambient temperature is low, such as during winter driving conditions
It may take time until the “READY” indicator comes on.
■Conditions affecting operation
P. 1 3 0
■Notes for the entry function
P. 1 3 1
■If the hybrid system does not start
●The immobilizer system may not have been deactivated. ( P. 8 2 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The hybrid system may not start if the
shift lever is displaced out of P. “Shift to P position when starting” will be displayed
on the multi-information display.
■Steering lock
After turning the “POWER” switch off and opening and closing the doors, the steer-
ing wheel will be locked due to the stee ring lock function. Operating the “POWER”
switch again automatically cancels the steering lock.
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ES350 300h_OM_OM33A01U_(U)
4-2. Driving procedures
■When the steering lock cannot be released
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if
the hybrid system is turned on and off repeatedly in a short period of time. In this
case, refrain from operating the hybrid sy stem. After about 10 seconds, the steering
lock motor will resume functioning.
■When “Check Access System with Elec. Key” is displayed on the multi-information
display
The system may be malfunctio ning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the “POWER” switch
with the shift lever in P and the brake pedal depressed, contact your Lexus dealer
immediately.
■If the hybrid system is malfunctioning
P. 76 2
■If the electronic key battery is depleted
P. 7 1 0
■Operation of the “POWER” switch
●When operating the “POWER” switch, one shor t, firm press is enough. If the switch
is pressed improperly, the hybrid system may not start or the “POWER” switch
mode may not change. It is not necessary to press and hold the switch.
●If attempting to restart the hybrid syst em immediately after turning the “POWER”
switch off, the hybrid system may not start in some cases. After turning the
“POWER” switch off, please wait a few se conds before restarting the hybrid sys-
tem.
■If the smart access system with push-but ton start has been deactivated in a cus-
tomized setting
P. 8 0 2
“Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is set in P. Press the
“POWER” switch while
turning the steering
wheel left and right.
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4-2. Driving procedures
4
Driving
Horn
To sound the horn, press on or close
to the mark.
■After adjusting the steering wheel (manual adjustment type only)
Make sure that the steering wheel is securely locked.
The horn may not sound if the steering wheel is not securely locked. (P. 1 6 2 )
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ES350 300h_OM_OM33A01U_(U)
2314-3. Operating the lights and wipers
4
Driving
■The Automatic High Beam can be operated when
The “START STOP ENGINE” <“POWER”> switch is in IGNITION ON
mode.
■Camera sensor detection information
●High beam may not be automatically turned off in the following situations:
• When oncoming vehicles su ddenly appear from a curve
• When the vehicle is cut in front of by another
• When oncoming or preceding vehicles are hidden from sight due to repeated
curves, road dividers or roadside trees
• When oncoming vehicles appear fr om the faraway lane on wide road
• When oncoming or preceding vehicles have no lights
●High beam may be turned off if an oncoming vehicle that is using fog lights without
using the headlights is detected.
●House lights, street lights, red traffic signals, and illuminated billboards or signs may
cause the high beam to turn off.
●The following factors may affect the amount of time taken to turn high beam on or
off:
• The brightness of headligh ts, fog lights, and tail lights of oncoming and preced-
ing vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle on ly has operational lights on one side
• When a oncoming or preceding vehicle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface etc.)
• The number of passengers and amount of luggage
●High beam may be turned on or off when unexpected by the driver.
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ES350 300h_OM_OM33A01U_(U)
2614-5. Using the driving support systems
4
Driving
CAUTION
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles are in
front of you.
As the sensor may not be able to correc tly detect these types of vehicles, the
approach warning ( P. 254) will not be activated, and a fatal or serious accident
may result.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane
■Conditions under which the vehicle-to-veh icle distance control may not function
correctly
Apply the brakes as necessary in the following conditions as the radar sensor may
not be able to correctly detect vehicles ahead, and a fatal or serious accident may
result:
●When water or snow thrown up by the surrounding vehicles hinders the function-
ing of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the trunk etc.)
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead of you decelerates suddenly
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4-5. Using the driving support systems
CAUTION
■Before using the LDA system
Do not rely solely on the LDA system. The LDA system does not drive the vehicle
automatically, nor does it reduce the amount of care you need to take. As such, the
driver must always assume full responsibility for understanding his/her surround-
ings, for operating the steering wheel to correct the driving line, and for driving
safely.
Inappropriate or negligent driving could lead to an accident.
■To avoid operating the LDA by mistake
Switch the LDA system off using the “LDA” switch when not in use.
■Situations unsuitable for LDA system
Do not use LDA system in any of the following situations.
Otherwise, the system may not function co rrectly and could result in an accident.
●When driving with tire chains, a spare tire, or similar equipment
●When there are objects or structures along the roadside that might be misinter-
preted as lane markers (such as guardrails, curb, reflector posts, etc.)
●When driving on snowy roads
●When pavement lane markers are difficult to see due to rain, snow, fog, etc.
●When there are visible lines on the pavement from road repairs, or if the remains
of old lane markers are still visible on the road
●When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane