stop start LEXUS RX350 2016 Owners Manual

TABLE OF CONTENTS
6
RX350_U_OM48E90U 7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 556
Cleaning and protecting
the vehicle inte rior.................... 561
7-2. Maintenance
Maintenance
requirements ............................ 564
General maintenance.............. 566
Emission inspection and
maintenance (I/M)
programs .................................... 569
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................ 570
Hood ................................................572
Positioning a floor jack..............573
Engine compartment ................ 574
Tires.................................................. 584
Tire inflation pressure ............... 593
Wheels ........................................... 596
Air conditioning filter ............... 598
Windshield wiper inserts ......... 601
Electronic key battery.............. 603
Checking and replacing
fuses.............................................. 605
Headlight aim ..............................608
Light bulbs ......................................610 8-1. Essential information
Emergency flashers ...................624
If your vehicle has to be
stopped in an
emergency ................................ 625
8-2. Steps to take in an
emergency
If your vehicle needs to
be towed ......................................626
If you think something is
wrong........................................... 632
Fuel pump shut off
system .......................................... 633
If a warning light turns
on or a warning buzzer
sounds ......................................... 634
If a warning message is
displayed ...................................... 641
If you have a flat tire .................. 646
If the engine will not start ........ 658
If the shift lever cannot be
shifted from P ........................... 660
If the electronic key does
not operate properly ............... 661
If the vehicle battery is
discharged ................................. 665
If your vehicle overheats ......... 668
If the vehicle becomes
stuck ............................................... 6717
Maintenance and care 8
When trouble arises

16 Pictorial index
RX350_U_OM48E90U ■ Instrument panel
Engine switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220Starting the engine/changing the modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 220
Emergency stop of the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 625
When the engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 658
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229Changing the shift position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 229
Precautions against towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 626
When the shift lever does not move . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 660
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 85Reading the meters/adjusting the instrument panel light . . . . . . . . . . . . . P. 85, 87
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 80
When the warning lights come on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 634 1
2
3

291-1. For safe use
1
For safety and security
RX350_U_OM48E90U WA R N I N G
Observe the following precautions.
Failure to do so may result in death or serious injury.●
Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle. ●
Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce the effec-
tiveness of the seat be lt and head restraint.●
Do not place anything under the front seats.
Objects placed under the front seats may be come jammed in the seat tracks and stop
the seat from locking in place. This may lead to an accident and the adjustment mech-
anism may also be damaged. ●
When driving over long distances, take regular breaks before you start to feel tired.
Also, if you feel tired or sleepy while drivin g, do not force yourself to continue driving
and take a break immediately.

74
RX350_U_OM48E90U 1-3. Theft deterrent system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled. ■
System maintenance
The vehicle has a maintenance-free type engine immobilizer system. ■
Conditions that may cause the system to malfunction ●
If the grip portion of the key is in contact with a metallic object●
If the key is in close proximity to or touching a key registered to the security system (key
with a built-in transponder chip) of another vehicleEngine immobilizer system The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been prev iously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prev ent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

76 1-3. Theft deterrent system
RX350_U_OM48E90U The alarm uses light and sound to give an alert when an intrusion is detected.
The alarm is triggered in the following situations when the alarm is set: ●
A locked door is unlocked or opened in any way other than using the entry
function, wireless remote control or mech anical key. (The doors will lock again
automatically.) ●
The hood is opened.
Close the doors and hood, and lock all
the doors. The system will be set auto-
matically after 30 seconds. The indicator light changes from being
on to flashing when the system is set.
Do one of the following to de activate or stop the alarms:●
Unlock the doors. ●
Turn the engine switch to ACCESSORY or IGNITION ON mode, or start
the engine. (The alarm will be deactivat ed or stopped after a few seconds.)■
System maintenance
The vehicle has a maintenance-free type alarm system. ■
Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing: ●
Nobody is in the vehicle. ●
The windows and moon roof or panoramic moon roof are closed before the alarm is
set. ●
No valuables or other personal items are left in the vehicle.Alarm The alarm
Setting the alarm system
Deactivating or stopping the alarm

122 3-1. Key information
RX350_U_OM48E90U ■
Electronic key battery depletion ●
The standard battery life is 1 to 2 years. ●
If the battery becomes low, an alarm will soun d in the cabin when th e engine is stopped.
(  P. 6 0 3 ) ●
As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. (  P. 6 0 3 )
• The smart access system with push-button start or the wireless remote control does
not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on. ●
To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of the
following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps ■
Replacing the battery
 P. 6 0 3 ■
Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask your Lexus
dealer for details. ■
If a wrong key is used
The key cylinder rotates freely, isolated from the internal mechanism.

1253-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
Operation signals
Doors:
A buzzer sounds and the emergency flashers flash to indicate that the doors have been
locked/unlocked. (Locked: Once; Unlocked: Twice)
Windows and moon roof or panoramic moon roof:
A buzzer sounds. ■
Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the
security feature automatically locks the vehicle again. ■
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
Locking the doors will set the alarm system. (  P. 76 )■
If the smart access system with push-butto n start or the wireless remote control does
not operate properly ●
Use the mechanical key to lock and unlock the doors. (  P. 6 6 1 )●
Replace the key battery with a new one if it is depleted. (  P. 6 0 3 )When the door cannot be locked even if the
lock sensor on the surfac e of the door handle is
touched by a finger, touch the lock sensor with
the palm.
When gloves are being worn, remove the
gloves.

130 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U ◆ Smart access system with push-button start
Carry the electronic key to enable
this function.
Locks all the doors Check that the door is securely
locked.
Unlocks all the doors The doors cannot be unlocked for 3
seconds after the doors are locked.
◆ Wireless remote control
 P. 1 2 4
◆ Door lock switch
 P. 1 2 6
Press and hold the switch for approxi-
mately 1 second. The power back door can be operated
whether it is locked
* or unlocked.
Pressing the switch while the power
back door is opening/closing will stop
the operation.
Pressing and holding the switch again
for approximately 1 second will operate
the power back door in the opposite
direction.
* : Opening of the power back door when it is locked can be disabled by a customized
setting. (  P. 7 0 4 )Power back door The power back door can be locked/unlocked and opened/closed by the fol-
lowing procedures.
Locking and unlocking the power back door from the outside 1
2
Locking and unlocking the power back door from the inside
Opening/closing the power back do or using the wireless remote con-
trol

1373-2. Opening, closing and locking the doors
3
Operation of each component
RX350_U_OM48E90U ■
Back door closer
In the event that the power back door is left slightly open, the back door closer will auto-
matically close it to the fully closed position. ●
The back door closer can function when the engine switch is in any mode.●
The power back door can be opened using th e back door opener switch even if the
back door closer is operating. ■
Operation of the power back door ●
When the power back door begins to operate, the emergency flashers will flash twice
and a buzzer will sound. ●
When the power back door is disabled (  P. 100), the power back door will not oper-
ate but can be opened and closed manually. ●
The power back door turns to manual operat ion when the back door opener switch is
pressed while the power back door is in an automatic opening/closing operation.●
If anything obstructs the po wer back door while opening, a buzzer will sound and the
power back door will stop immediately. If anything obstructs the power back door while
closing, a buzzer will sound and the power back door will automatically move slightly in
the opposite direction and then stop. ■
Back door reserve lock function
This function reserves the locking of the po wer back door when the power back door is
open. If the following operations are performed, all of the doors except the power back
door will lock and then the power back door will lock when it is completely closed.
Close all of the doors, ex cept the power back door.
Perform an automatic closing operation of the power back door and lock the doors
using the wireless remote control (  P. 124) or smart access system with push-button
start (  P. 124, 130) while the power back door is closing. 1
2

142 3-2. Opening, closing and locking the doors
RX350_U_OM48E90U WA R N I N G ■
Back door closer
●
Use caution when using the back door closer as it still operates when the power back
door system is disabled. ■
Power back door
Observe the following precautions when operating the power back door.
Failure to do so may cause death or serious injury. ●
Check the safety of the surrounding area to make sure there are no obstacles or any-
thing that could cause any of your belongings to get caught. ●
If anyone is in the vicinity, make sure they are safe and let them know that the power
back door is about to open or close. ●
If the power back door system is disabled (  P. 100) while the power back door is
operating, the power back door will stop operating. The power back door must then
be operated manually. Take extra care in this situation, as the power back door may
open or close suddenly. ●
If the operating conditions of the power back door (  P. 135) are no longer met, a
buzzer may sound and the power back door may stop opening or closing. The power
back door must then be operated manually. Take extra care on an incline in this situa-
tion, as the power back door may move suddenly. ●
On an incline, the power back door may suddenly shut after it opens. Make sure the
power back door is fully open and secure. ●
In the following situations, the power back door may detect an abnormality and auto-
matic operation may be stopped. In this case, the power back door must then be
operated manually. Take extra care in this situation, as the stopped power back door
may suddenly open or close, causing an accident.
• When the power back door contacts an obstacle
• When the battery voltage suddenly drops, such as when the engine switch is
turned to IGNITION ON mode or the engine is started during automatic opera-
tion ●
In the event that the power back door is left
slightly open, th e back door closer will auto-
matically close it to the fully closed position. It
takes several seconds before the back door
closer begins to operate. Be careful not to get
fingers caught or anything else in the power
back door, as this may cause bone fractures
or other serious injuries.