5758-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, bu t then goes off, this does not necessar-
ily indicate a malfunction in the system . However, if this continues to occur,
have the vehicle inspected by any au thorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning Immediately stop the vehicle in a safe place and contact any
authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer. Continuing to drive the vehicle may be dan- gerous.
Brake system warning light
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer immediately.
(If equipped)
Charging system warning light
Indicates a malfunction in the vehicle’s charging system Immediately stop the vehicle in a safe place and contact any
authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer.
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The emission control system (if equipped); • The electronic engine control system; or
• The electronic throttle control system
Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
5838-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
(If equipped)
Indicates that the vehicle has deviated from the lane (while the LDA [Lane Departure Alert with steering con-
trol] system are operating)
The lane line on the side the vehicle has deviated from flashes in amber.
A buzzer also sounds.
Check around the vehicle and back to inside of the lane lines.
Indicates that:• The brake fluid level is low; or
• The brake system is malfunctioning
A buzzer also sounds. Immediately stop the vehicle in a safe place and
contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. Con- tinuing to drive the vehicle may be dangerous.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
Immediately stop the vehicle in a safe place and contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.
Indicates that one or more of the doors is not fully closed The system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 5 km/h (3 mph),
flashes and a buzzer sounds to indicate that
the door(s) are not yet fully closed. Make sure that all the doors are closed.
Warning messageDetails/Actions
(Flashes)
(Flashes)
5978-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
(If equipped)
Indicates a malfunction in the RSA (Road Sign Assist)
A buzzer also sounds
Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer.
Indicates that the accelerator and brake pedal are being depressed simultaneously
Release the accelerator or brake pedal.
Indicates that the washer fluid level is low
Add washer fluid.
Indicates that remaining fuel is approximately 10 L (2.6
gal., 2.2 Imp. gal.) or less Refuel the vehicle.
Warning messageDetails/Actions
(Flashes)
6348-2. Steps to take in an emergency
IS300h_EE(OM53D89E)
WARNING
■Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the 12-volt 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 other end of the jumper cable connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or unpainted metal.
●Do not allow the + and - clamps of the jump er cables to come into contact with each
other.
●Do not smoke, use matches, cigarette light ers or allow open flame near the 12-volt
battery.
■12-volt battery precautions
The 12-volt battery contains poisonous and co rrosive acidic electrolyte, while related
parts contain lead and lead compounds. Ob serve the following precautions when han-
dling the 12-volt battery:
●When working with the 12-volt battery, always wear safety glasses and take care not
to allow any 12-volt battery fluids (acid) to come into contact with skin, clothing or the
vehicle body.
●Do not lean over the 12-volt battery.
●In the event that 12-volt 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 12-volt battery support, terminals, and other battery-related parts.
●Do not allow children near the 12-volt battery.
■After recharging the 12-volt battery
Have the 12-volt battery inspected at any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer as soon as possible.
If the 12-volt battery is deteriorating, co ntinued use may cause the 12-volt battery to emit a malodorous gas, which may be de trimental to the health of passengers.
■When replacing the 12-volt battery
P. 524
6509-1. Specifications
IS300h_EE(OM53D89E)
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any authorized Lexus retailer or Lexus autho-
rized repairer, or an y reliable repairer.
Electrical system
12-volt battery
Open voltage at 20C
(68 F):
12.0 V or higher
(Check the voltage 20 minutes after the hybrid system and all lights are turned off.)
If the voltage is lower than the standard value, charge
the battery.
Charging rates4 A — 5 A
Hybrid transmission
Fluid capacity*3.8 L (4.0 qt., 3.3 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid ot her than “Toyota Genuine ATF WS” may damage the hybrid
transmission of your vehicle.
651
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
Your Lexus vehicle is filled wi th “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differenti al Gear Oil” or an equivalent of match- ing quality to satisfy the abov e specification. Please contact any authorized Lexus retailer
or Lexus authorized repairer, or any reliable repairer for further details.
*1: Minimum pedal clearance when depressed with a force of 500 N (51.0 kgf, 112.4 lbf)
while the hybrid system is operating.
*2: Parking brake pedal travel when depressed with a force of 300 N (30.6 kgf, 67.4 lbf)
Differential
Oil capacity1.35 L (1.42 qt., 1.19 Imp. qt.)
Oil type and viscosityToyota Genuine Differential gear oil LT
75W-85 GL-5 or equivalent
Brakes
Pedal clearance*1117 mm (4.6 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Parking brake pedal travel*27 - 10 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3, or
SAE J1704 or FMVSS No. 116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)
673Alphabetical index
IS300h_EE(OM53D89E)
Anti-lock Brake System (ABS) .......352
Warning light ....................................... 576
Approach warning .............................. 300
Armrest..................................................... 493
ASC (Active Sound Control).......... 236
Assist grips ..............................................495
Audio input .............................................. 375
Audio system ..........................................368
Audio CD player ...............................396
Audio input ........................................... 375
AUX port/
USB port ............................................ 375
Bluetooth® audio .............................. 420
iPod........................................................... 402
Optimal use ......................................... 386
Portable music player......................... 411
Radio ........................................................ 394
Steering wheel audio switch ........ 374
USB memory...................................... 406
Automatic headlight leveling
system ................................................... 239
Automatic High Beam .......................240
Automatic light control system ...... 237
AUX port ................................................. 375
Average fuel
economy ............................ 130, 132, 134
Average vehicle speed ....................... 130
Back-up light
Replacing light bulb ......................... 562
Battery (12-volt battery) .................... 522
If the 12-volt battery is
discharged .......................................... 631
Preparing and checking
before winter...................................... 361
Warning light....................................... 575
Battery (traction battery) .......................81
Blind Spot Monitor (BSM) .............. 334
Blower customization......................... 475
Bluetooth®
Audio system....................................... 420
Hands-free system
(for cellular phone) ......................... 421
Bottle holders......................................... 486
Brake
Fluid ............................................................651
Parking brake ...................................... 235
Regenerative braking.......................... 79
Warning light....................................... 575
Brake assist ............................................ 352
Break-in tips ........................................... 203
Brightness control
Instrument panel light control ...... 108
BSM (Blind Spot Monitor) ............... 334
Blind Spot Monitor function ........ 340
Rear Crossing Traffic Alert
function ............................................... 343
B
678Alphabetical index
IS300h_EE(OM53D89E)
Engine coolant temperature
gauge....................................................... 105
Engine oil................................................... 516
Capacity ................................................. 647
Checking ................................................ 516
Preparing and checking
before winter ......................................361
Engine oil maintenance data............. 518
Engine switch .......................................... 219
EPS (Electric Power Steering)........ 352
Warning light ....................................... 576
ERA-GLONASS. ................................ 496
EV drive mode ....................................... 224
EV indicator ............................................... 79
First-aid kit storage belt .....................488
Flat tire
Vehicles with emergency
tire puncture repair kit ...................610
Vehicles with run-flat tires ............ 625
Floor mats ................................................... 34
Fluid
Brake .........................................................651
Hybrid
transmission......................................650
Washer..................................................... 521
Fog light .................................................... 244
Replacing light bulbs ....................... 562
Switch .......................................................244
Follow me home system .................... 238
Footwell light ........................................... 481
Wattage ................................................. 654
Front personal lights............................ 482
Wattage ................................................. 654
Front position lights ............................. 237
Light switch............................................237
Replacing light bulbs ....................... 562
F