ECU LEXUS RX300H 2017 Workshop Manual

1453-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC300h_EE(OM24740E)
■Operation signals
The emergency flashers flash to indicate th at the doors have been locked/unlocked. (Locked: once; Unlocked: twice)
A buzzer sounds to indicate that th e windows and moon roof are operating.
■Security feature
If a door is not opened within approximately 30 seconds after the vehicle is unlocked, the security feature automatically locks the vehicle again.
■Welcome light illumination control
The front position, tail and license plate lights automatically turn on at night when the doors are unlocked using the entry function or wireless remote control if the light switch
is in the “AUTO” position.
■When the door cannot be locked by the lock sensor on the surface of the door handle
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer sounds
continuously for 5 seconds. Fully close the door to stop the buzzer, and lock the vehicle once more.
■Setting the alarm (if equipped)
Locking the doors will set the alarm system. ( P. 102)
■If the smart entry & start system or the wireless remote control does not operate prop- erly
Use the mechanical key and/or inside lock buttons to lock and unlock the doors. ( P. 578) Replace the key battery with a new one if it is depleted. ( P. 511)
Use your palm to touch the lock sensor.

1513-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC300h_EE(OM24740E)
Using the trunk grip, lower the trunk
without applying force to the side and
push the trunk down from the outside
to close it.
To protect luggage stored in the trunk against theft, the luggage security system
can be set to on.
Move the luggage security system
levers to the lock position.
To lock a luggage security system lever from inside the cabin, fold the rear
seatback forward, move the lever to the lock position, and return the seatback toits original position.
To disable the trunk opener, turn the
main switch in the glove box off.
On
Off
When the main switch is off, the trunk lid cannot be opened even with the
wireless remote control or entry function.
When closing the trunk
Luggage security system
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2
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2

1543-2. Opening, closing and locking the doors and trunk
RC300h_EE(OM24740E)
WARNING
■Using the trunk
Observe the following precautions. Failure to do so may cause parts of the body to be caught, resulting in serious injury.
●Remove any heavy loads, such as snow and ice, from the trunk lid before opening it. Failure to do so may cause the trunk lid to suddenly shut again after it is opened.
●When opening or closing the trunk lid, thoroughly check to make sure the surround-
ing area is safe.
●If anyone is in the vicinity, make sure they are safe and let them know that the trunk is about to open or close.
●Use caution when opening or closing the tr unk lid in windy weather as it may move abruptly in strong wind.
●On an incline it is more difficult to open or close the trunk lid than on a level surface,
so beware of the trunk lid unexpectedly op ening or closing by itself. Make sure that the trunk lid is fully open and secure before using the trunk.
●Do not attach any accessories other than genuine Lexus parts to the trunk lid. Suchadditional weight on the trunk lid may cause the lid to suddenly shut again after it is
opened.
●When opening the trunk lid, take care so that it does not hit anyone in the face or any otherpart of the body.
●When closing the trunk lid, take extra care toprevent your fingers etc. from being caught.
●When closing the trunk lid, make sure topress it lightly on its outer surface. If the trunkhandle is used to fully close the trunk lid, it
may result in hands or arms being caught.

1803-3. Adjusting the seats
RC300h_EE(OM24740E)
WARNING
■When adjusting the seat position
●Take care when adjusting the seat position to ensure that other passengers are not injured by the moving seat.
●Do not put your hands under the seat or near the moving parts to avoid injury.Fingers or hands may become jammed in the seat mechanism.
●Make sure to leave enough space around the feet so they do not get stuck.
■Seat adjustment
To reduce the risk of sliding under the lap be lt during a collision, do not recline the seat more than necessary.
If the seat is too reclined, th e lap belt may slide past the hips and apply restraint forces directly to the abdomen, or your neck may contact the shoulder belt, increasing the riskof death or serious injury in the event of an accident.
Adjustments should not be made while driving as the seat may unexpectedly move and cause the driver to lose control of the vehicle.
■Lever-operated “Front , Fold & Return” seat
●Before operating the lever-operated “Front, Fold & Return” seat, ensure that any sur- rounding passengers or objects will not contact the seat.
●Make sure the seatback is locked securely before driving.
●Never operate the lever-operated “Front, Fold & Return” seat while the vehicle ismoving.
■Jam protection function
Do not use a hand, foot, or any other part of your body to intentionally activate the jam protection function.

1813-3. Adjusting the seats
3
Operation of each component
RC300h_EE(OM24740E)
Move the luggage security system
lever to the unlock position.
Pull the seatback lock release lever
and fold the seatback down.
To return a rear seatback to its original
position, lift it until it locks. If a rear head restraint contacts the ceiling and theseatback cannot be returned smoothly,
lower the head restraint to the lowest position.
Rear seats
The rear seatbacks can be folded down.
Folding down the rear seatbacks
1
2

1823-3. Adjusting the seats
RC300h_EE(OM24740E)
P. 151
Luggage security system
WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.
■When folding the rear seatbacks down
●Do not fold the seatbacks down while driving.
●Stop the vehicle on level ground, set the parking brake and shift the shift lever to P.
●Do not allow anyone to sit on a folded seatback or in the trunk while driving.
●Do not allow children to enter the trunk.
■After returning the rear seatback to the upright position
●Check that the seat belts are not twisted or caught in the seatback.
●Make sure that the seatback is securely locked in position by lightly pushing it backand forth.
If the seatback is not securely locked, the red marking will be visible on the seatback lockrelease knob. Make sure that the red marking
is not visible.

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3
Operation of each component
RC300h_EE(OM24740E)
3-4. Adjusting the steering wheel and mirrors
Manual type
Hold the steering wheel and push
the lever down.
Adjust to the ideal position by mov-
ing the steering wheel horizontally
and vertically.
After adjustment, pull the lever up to secure the steering wheel.
Power type
Operating the switch moves the steering wheel in the following directions:
Up
Down
Toward the driver
Away from the driver
Steering wheel
Adjustment procedure
1
2
1
2
3
4

1903-4. Adjusting the steering wheel and mirrors
RC300h_EE(OM24740E)
When the power switch is turned off,
the steering wheel returns to its stowed
position by moving up and away to
enable easier driver entry and exit.
Turning the power switch to ACCES-
SORY or ON mode will return the steering wheel to the original position.
To sound the horn, press on or close to
the mark.
■The steering wheel can be adjusted when (power type)
The power switch is in ACCESSORY or ON mode.
■Automatic adjustment of the steering position (if equipped)
A desired steering position can be entered to memory and recalled automatically by the
driving position memory system. ( P. 183)
■Customization
The auto tilt away function can be changed. (Customizable features: P. 607)
Auto tilt away (power type)
Horn
WARNING
■Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an accident, result- ing in death or serious injury.
■After adjusting the steering wheel (manual type)
Make sure that the steering wheel is securely locked. Otherwise, the steering wheel may move suddenly, possibly causing an accident, andresulting in death or serious injury. Also, th e horn may not sound if the steering wheel is
not securely locked.

2104-1. Before driving
RC300h_EE(OM24740E)
WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.
■When the vehicle is stopped
●Do not depress the accelerator pedal unnecessarily.If the shift lever is in any position other than P or N, the vehicle may accelerate sud-denly and unexpectedly, causing an accident.
●In order to prevent accidents due to the vehicle rolling away, always keep depressingthe brake pedal while stopped with the “READY” indicator is illuminated, and applythe parking brake as necessary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused by thevehicle rolling forward or backward, alwa ys depress the brake pedal and securely apply the parking brake as needed.
●Avoid revving or racing the engine. Running the engine at high speed while the vehicle is stopped may cause the exhaustsystem to overheat, which could result in a fire if combustible material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire. • The temperature inside the vehicle may cau se the plastic lenses and plastic mate-
rial of glasses to deform or crack. • Soft drink cans may fracture, causing the contents to spray over the interior of thevehicle, and may also cause a short circuit in the vehicle’s electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a place such as the glove box or on the floor, it may be lit accidentally when luggage is loaded or the
seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windshield or windows. Do not place containers such as air fresheners on the instrument panel or dashboard. Adhesive discs or con-
tainers may act as lenses, causing a fire in the vehicle.
●Do not leave a door or window open if the curved glass is coated with a metallized film such as a silver-colored one. Reflected sunlight may cause the glass to act as a
lens, causing a fire.
●Always apply the parking brake, shift the shift lever to P, stop the hybrid system and lock the vehicle.
Do not leave the vehicle unattended while the “READY” indicator is illuminated. If the vehicle is parked with the shift lever in P but the parking brake is not set, thevehicle may start to move, possibly leading to an accident.
●Do not touch the exhaust pipes while the “READY” indicator is illuminated or imme-diately after turning the hybrid system off.Doing so may cause burns.

2114-1. Before driving
4
Driving
RC300h_EE(OM24740E)
WARNING
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 hybrid system off. Otherwis e, if you accidentally move the shift lever or depress the accelerator pedal, this could cause an accident or fire due to hybrid systemoverheating. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust
gases may collect and enter the vehicle, lead ing 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 notsecurely hold the vehicle.
●If the electronically controlled brake system does not operate, do not follow othervehicles closely and avoid hills or sharp turns that require braking.In this case, braking is still possible, bu t the brake pedal should be depressed more
firmly than usual. Also, the braking distance will increase. Have your brakes fixed immediately.
●The brake system consists of 2 or more individual hydraulic systems; if one of the sys-
tems fails, the other(s) 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 immediately.
■If the vehicle becomes stuck
Do not spin the wheels excessively when any of the tires is up in the air, or the vehicle is stuck in sand, mud, etc. This may damage th e driveline components or propel the vehi-
cle forward or backward, causing an accident.