
4097-2. Steps to take in an emergency
7
When trouble arises
Exhaust hole
Exhaust hole plug
Exhaust hose
Elbow
For details, consult your Lexus dealer.
WARNING
■When removing the 12-volt battery
terminals
Always remove the negative (-) terminal
first. If the positive (+) terminal contacts
any metal in the surrounding area when
the positive (+) terminal is removed, a
spark may occur, leadin g to a fire in addi-
tion to electrical shocks and death or
serious injury.
■Avoiding 12-volt battery fires or
explosions
Observe the following precautions to
prevent accidentally igniting the flamma-
ble gas that may be emitted from the 12-
volt battery:
●Make sure each jumper cable is con-
nected to the correct terminal and that
it is not unintentiona lly in contact with
any other than the intended terminal.
A
B
C
D
●Do not allow the other end of the
jumper cable connected to the “+” ter-
minal 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
jumper cables to come into contact
with each other.
●Do not smoke, use matches, cigarette
lighters or allow open flame near the
12-volt battery.
■12-volt battery precautions
The 12-volt battery contains poisonous
and corrosive acidic electrolyte, while
related parts contain lead and lead com-
pounds. Observe the following precau-
tions when handling the 12-volt battery:
●When working with the 12-volt battery,
always wear safety glasses and take
care not to allow any 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 battery fluid (acid)
comes into contact with the skin or
eyes, immediately 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 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
your Lexus dealer as soon as possible.
If the 12-volt battery is deteriorating, con-
tinued use may cause the 12-volt battery
to emit a malodorous gas, which may be
detrimental to the health of passengers.

4208-1. Specifications
■Spark plug
■12-volt battery
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Ignition system
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Open voltage at 68°F (20°C):12.0 V or higher
If the voltage is lower than the standard value,
charge the battery.
(After charging the battery, turn on the high beam
headlights for 30 seconds with the power switch
OFF, and turn the headlights off.)
Charging rates:
Quick charge
Slow charge
15 A max.
5 A max.
Hybrid transmission
Fluid capacity*4.0 qt. (3.8 L, 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ultimately damage
the hybrid transmission of your vehicle.

Alphabetical Index471
Rev indicator .................................................... 84
Rev peak............................................................. 84
Road Sign Assist ............................................ 214
RSA (Road Sign Assist) .............................. 214
Run-flat tires........................................ 347, 399
S
Seat belt reminder light................... 390, 391
Seat belts............................................................ 26 Adjusting the seat belt shoulder anchor height............................................................... 29
Automatic Locking Retractor ................ 28
Child restraint system installation ......... 44
Cleaning and maintaining the seat belt ......................................................................... 325
Emergency Locking Retractor .............. 28
How to wear your seat belt ......................27
How your child should wear the seat belt ............................................................................ 28
Pregnant women, proper seat belt use .............................................................................27
Reminder light and buzzer ........ 390, 391
Seat belt extender ........................................ 28
Seat belt pretensioners .............................. 29
SRS warning light ..................................... 388
Seat heaters .................... ............................... 286
Seating capacity............................................ 160
Seat position memory..................................133
Seats........................................................... 131, 132 Adjustment precautions ............................ 131
Adjustment....................................................... 131
Child seats/child restraint system installa-tion .................................................................... 44
Cleaning......................................................... 325
Driving position memory.........................133
Head restraint................................................136
Power easy access system .....................133
Properly sitting in the seat ........................ 25
Seat heaters .................................................. 287
Seat position memory ...............................133
Seat ventilators............................................ 287
Seat ventilators ............................................. 286 Secondary Collision Brake ..................... 257
Sensor
Automatic headlight system ................... 177
Automatic High Beam system .............180
Inside rear view mirror ............................... 141
Intuitive parking assist .............................. 232
LTA (Lane Tracing Assist) ................... 205
Parking Support Brake function (rear-crossing vehicles)................................... 252
Parking Support Brake function (static objects) ........................................................248
Radar sensor ...................................... 192, 227
Rain-sensing windshield wipers .......... 186
RCTA...............................................................240
Service plug ...................................................... 65
Service reminder message ..................... 328
Shift lever Hybrid transmission................................... 168
Side airbags ........................................................31
Side doors........................................................ 108
Side marker lights Light switch ..................................................... 177
Side mirrors ..................................................... 142 Adjustment ......................................................142
BSM (Blind Spot Monitor).................... 226
Folding...............................................................143
Linked mirror functi on when reversing
............................................................................143
Mirror position memory .......................... 133
RCTA function ............................................239
Side turn signal lights Replacing light bulbs ................................ 374
Turn signal lever ............................................ 171
Side windows ..................................................145
Smart access system with push-button start................................................................... 124Antenna location ..........................................124
Entry functions ..................................... 108, 113
Starting the hybrid system .......................162
Snow tires ....................................................... 263
Spark plug ...................................................... 420
Specifications ..................................................416