Page 588 of 652

588
5-2. Steps to take in an emergency
RX350/270_EE
Emergency start function
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the “ENGINE START STOP” switch
is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “ENGINE START STOP” switch to ACCESSORY
mode.
Press and hold the “ENGINE START STOP” switch for about 15
seconds while depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may
be malfunctioning. Have the vehicle checked by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (→P. 5 9 4 )
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3
STEP4
RX350_270_EE_48D77E.book 588 ページ 2014年1月24日 金曜日 午前10時4分
Page 595 of 652

5
595
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
RX350
Connect the jumper cables according to the following procedure:
Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect a positive jumper cable clamp to the positive (+) battery
terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery terminal
on the second vehicle.
Connect the clamp at the other end of the negative cable to a solid,
stationary, unpainted metallic point away from the battery and any
moving parts, as shown in the illustration.
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain that level for approximately 5 min-
utes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch off.
Maintain the engine speed of the second vehicle and start the
engine of your vehicle by turning the “ENGINE START STOP”
switch to IGNITION ON mode.
STEP2
STEP3
STEP4
STEP5
RX350_270_EE_48D77E.book 595 ページ 2014年1月24日 金曜日 午前10時4分
Page 596 of 652

596
5-2. Steps to take in an emergency
RX350/270_EE
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■When the battery is removed or discharged
●The power back door must be initialized. (if equipped) (→P. 6 3 3 )
●Make sure that the key is not inside the vehicle when recharging or replacing
the battery. The key may be locked in the vehicle if the alarm is activated.
(→P. 1 2 5 )
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehi-
cle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the battery may dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.)
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order from which they were con-
nected.
Once the engine starts, have the vehicle inspected at any authorized
Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional as soon as possible.STEP6
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Page 597 of 652

5
597
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery:
●When working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or belt.
RX350_270_EE_48D77E.book 597 ページ 2014年1月24日 金曜日 午前10時4分
Page 619 of 652
619
6-1. Specifications
6
Vehicle specifications
RX350/270_EE
Light bulbs
A: H9 halogen bulbs B: D4S discharge bulbs
C: H11 halogen bulbs D: Wedge base bulbs (amber)
E: H16 halogen bulbs F: Wedge base bulbs (clear)
*: If equipped
Light bulbsWTy p e
Exterior
Headlights
High beam
Low beam (discharge bulbs)*
Low beam (halogen bulbs)*
65
35
55A
B
C
Front turn signal lights21D
Front fog lights19E
Rear turn signal lights21D
Tail lights5F
Back-up lights16F
Rear fog lights21F
Outer foot lights5F
Interior
Vanity lights8F
Front interior lights5F
Rear interior light8F
Luggage compartment lights5F
Door courtesy lights5F
Footwell lights3.8F
RX350_270_EE_48D77E.book 619 ページ 2014年1月24日 金曜日 午前10時4分
Page 620 of 652

620
6-1. Specifications
RX350/270_EE
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only
accommodates the special nozzle on unleaded fuel pumps.
■If premium gasoline is not available
If this premium type cannot be obtained, you can use unleaded gasoline with a
Research Octane Number as low as 91.
The use of such gasoline may cause the engine to knock or drastically reduce out-
put to protect itself while driving with a heavy load. To avoid this, refill the tank with
premium unleaded gasoline as soon as possible.
■If your engine knocks
●Consult any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
EU area:
Your vehicle must use only unleaded gasoline conforming to European
standard EN228.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
Except EU area:
Your vehicle must use only unleaded gasoline.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
RX350_270_EE_48D77E.book 620 ページ 2014年1月24日 金曜日 午前10時4分
Page 626 of 652
626
6-2. Customization
RX350/270_EE
Automatic
light control
system
(
→P. 2 1 7 )
Light sensor
sensitivityStandard-2 t o 2O—OO
Light reminder
buzzerOnOff———O
Daytime run-
ning light system OnOffO—OO
Ti m e t h a t t h e l o w
beam headlights
are on when the
vehicle is parked
30 sec-
onds
60 sec-
onds
———O90 sec-
onds
120 sec-
onds
ItemFunctionDefault
settingCustom-
ized
setting
RX350_270_EE_48D77E.book 626 ページ 2014年1月24日 金曜日 午前10時4分
Page 627 of 652
627
6-2. Customization
6
Vehicle specifications
RX350/270_EE
Illumination
(
→P. 4 1 7 )
Ti m e e l a p s e d
before the inte-
rior lights turn off
15 seconds
7. 5 s e c -
onds
O—OO30 sec-
onds
Ti m e e l a p s e d
before the exte-
rior lights turn off
15 seconds
7. 5 s e c -
onds
O—OO30 sec-
onds
Operation when
the doors are
unlocked
OnOff———O
Operation after
the “ENGINE
START STOP”
switch turned off
OnOff———O
Operation when
you approach
the vehicle with
the electronic
key on your per-
son
OnOff———O
ItemFunctionDefault
settingCustom-
ized
setting
RX350_270_EE_48D77E.book 627 ページ 2014年1月24日 金曜日 午前10時4分