
3597-2. Steps to take in an emergency
7
When trouble arises
■Brake hold operated indicator (warning buzzer)
■Master warning light (warning buzzer)
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■Front passenger detection sensor, seat
belt reminder and warning buzzer
●If luggage is placed on the front passen-
ger seat, the front passenger detection
sensor may cause th e warning light to
flash and the warning buzzer to sound
even if a passenger is not sitting in the
seat.
●If a cushion is placed on the seat, the sen-
sor may not detect a passenger, and the
warning light may not operate properly.
■SRS warning light
This warning light system monitors the air-
bag sensor assembly, fr ont impact sensors,
side impact sensors (front door), side
impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s
seat belt buckle switch, front passenger
occupant classification system (ECU and
sensors), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front pas-
senger’s seat belt buc kle switch, seat belt
pretensioners, airbags, interconnecting wir-
ing and power sources.
■Electric power steering system warning
light (warning buzzer)
When the battery charge becomes insuffi-
cient or the voltage temporarily drops, the electric power steering system warning
light may come on and the warning buzzer
may sound.
■When the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured: P.366
If none of the tires are punctured:
Turn the engine switch off then turn it to
IGNITION ON mode. Check if the tire
pressure warning light comes on or blinks.
If the tire pressure warning light blinks for
approximately 1 minute then stays on
There may be a malfunction in the tire pres-
sure warning system. Have the vehicle
inspected by your Lexus dealer immedi-
ately.
If the tire pressure warning light comes
on
1 After the temperature of the tires has
lowered sufficiently, check the inflation
pressure of each tire and adjust them to
the specified level.
2 If the warning light does not turn off
even after several minutes have
elapsed, check that the inflation pres-
sure of each tire is at the specified level
and perform initialization. ( P.326)
■The tire pressure warning light may
come on due to natural causes
The tire pressure wa rning light may come
on due to natural causes such as natural air
Warning lightDetails/Actions
(flashes)
Indicates a malfunction in the brake hold system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
A buzzer sounds and the warning ligh t comes on and flashes to indicate
that the master warning system has detected a malfunction.
P.362

3647-2. Steps to take in an emergency
*: A buzzer sounds the first time a message is shown on the multi-information display.
In some situations, the master warning light and warning buzzer may not oper-
ate as specified. In this case, follow the instructions displayed in the warning
message.
If a warning light comes on or flashes at the same time that a warning message is
displayed, take corrective actio n according to the warning light. ( P.352)
■Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications.
■Warning buzzer
In some cases, the bu zzer may not be heard
due to being in a noisy location or audio
sound.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary.
This message may appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and check to see if the mes-
sage disappears.
■If “Engine Stoppe d Steering Power
Low” is displayed
This message is displa yed if the engine is
stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering wheel
firmly and operate it using more force than
usual.
■If “Auto Power Off to Conserve Battery”
is displayed
Power was turned off due to the automatic
power off function. Next time when starting
the engine, increase the engine speed
slightly and maintain that level for approxi-
mately 5 minutes to recharge the battery.
■If “High Power Cons umption Power to
Climate Temporarily Limited” is dis-
played
Turn off unnecessary electronic equipment
to reduce power consumption.
Please wait until the power supply returns to
normal.
■If “Headlight System Malfunction Visit
Your Dealer” is displayed
The following systems may be malfunction-
ing. Have the vehicle inspected by your
Lexus dealer immediately.
●The LED headlight system
●AFS (Adaptive Front-lighting System)
●The automatic headlight leveling system
(if equipped)
●Automatic High Beam
■If “Radar Cruise Control Unavailable
See Owner’s Manual” is shown
The dynamic radar cruise control with full-
Comes onDoes not sound
Indicates a condition, such as malfunction of electri-
cal components, their condition, or indicates the
need for maintenance
FlashesDoes not sound
Indicates a situation, such as when an operation has
been performed incorrectly, or indicates how to
perform an operation correctly
Warning buzzer*Warning

3797-2. Steps to take in an emergency
7
When trouble arises
3Connect a positive jumper cable clamp to on your vehicle and connect the
clamp on the other end of the positive cable to on the second vehicle.
Then, connect a negative cable clamp to on the second vehicle and con-
nect the clamp at the other end of the negative cable to .
Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic poin t away from the battery and any mov-
ing parts as shown in the illustration
4 Start the engine of the second vehi-
cle. Increase the engine speed
slightly and maintain at that level for
approximately 5 minutes to
recharge the battery of your vehi-
cle.
5 Open and close any of the doors of
your vehicle with the engine switch
off.
6 Maintain the engine speed of the
second vehicle and start the engine
of your vehicle by turning the
engine switch to IGNITION ON
mode. 7
Once the vehicle’s engine has
started, remove the jumper cables
in the exact reverse order from
which they were connected.
Once the engine starts, have the vehicle
inspected at your Lexus dealer as soon as
possible.
■Starting the engine when the battery is
discharged
The engine cannot be started by push-start-
ing.
■To prevent battery discharge
●Turn off the headlights and the audio sys-
tem while the engine is stopped.
●Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
A
B
C
D
A
B
C
D

4068-2. Customization
*2: The default setting varies according to country.
*3:Except F SPORT models
*4:F SPORT models
■Head-up Display* ( P.84)
*:If equipped
■Door lock ( P.95, 99, 376)
FunctionDefault settingCustomized setting
Gauge informationTachometer
Eco Driving Indica-
tor
O
No content
Route guidance to destina-
tion/street name
*OnOffO
Driving support system displayOnOffO
Compass*OnOffO
Audio system operation statusOnOffO
FunctionDefault settingCustomized setting
Unlocking using a mechanical key
Driver’s door
unlocked in one step, all doors
unlocked in two step
All doors unlocked in one stepO
Automatic door locking function
Shift lever
linked door
locking opera- tionOff
OOSpeed linked door locking operation
Automatic door unlocking function
Shift lever
linked door unlocking operationOff
OODriver’s door linked door unlocking operation
Locking/unlocking of the trunk
when all doors are
locked/unlocked
OnOffO
ABC
ABC

433Alphabetical index
Alphabetical index
A
A/C ................................................................... 259Air conditioning filter ............................... 333
Automatic air conditioning system ... 259
ABS (Anti-lock Brake System).............. 244 Function .......................................................... 244
Warning light ............................................... 354
ACA (Active Cornering Assist) ........... 244
Active Cornering Assist (ACA) ........... 244
Adaptive Front-lighting System (AFS) 158
Adaptive Variable Suspension System244
AFS (Adaptive Front-lighting System) 158
Airbags ............................................................... 28 Airbag operating conditions................... 30
Airbag precautions for your child ........ 33
Correct driving posture .............................23
Curtain shield airbag operating condi-tions .................................................................... 31
Curtain shield airbag precautions ....... 33
Front passenger occupant classification system ..............................................................37
General airbag precautions ................... 33
Locations of airbags.................................... 28
Modification and disposal of airbags . 35
Side airbag operating conditions ........... 31
Side airbag precautions ............................ 33
Side and curtain shield airbags operating conditions........................................................ 31
Side and curtain shield airbags precau- tions .................................................................. 33
SRS airbags ..................................................... 28
SRS warning light ...................................... 353
Air conditioning filter ................................. 333
Air conditioning system ............................ 259 Air conditioning filter ............................... 333
Automatic air conditioning system ... 259
Alarm ................................................................... 63 Alarm .................................................................. 63
Warning buzzer ......................................... 352
Anchor brackets ...................................... 43, 51
Antennas (smart access system with push- button start) ................................................. 106
Anti-lock Brake System (ABS).............. 244 Function .......................................................... 244
Warning light ...............................................354
Approach warning........................................199
Armrest............................................................ 286
Assist grips ..................................................... 286
Audio system-linked display ........................81
Automatic headlight leveling system .... 157
Automatic High Beam ................................159
Automatic light control system................156
Automatic transmission .............................. 147 Paddle shift switches ................................. 150
S mode ............................................................. 150
Auxiliary box.................................................. 275
Average fuel economy..................................79
Average vehicle speed .................................79
B
Back-up lights Replacing light bulbs ................................339
Battery Checking ........................................................ 318
If the battery is discharged ....................378
Preparing and checking before winter..........................................................................248
Warning light ...............................................353
Blind Spot Monitor (BSM)....................... 203
Boost gauge...................................................... 80
Brake Brake hold ...................................................... 154
Fluid.................................................................. 390
Parking brake ............................................... 152
Warning light ...............................................352
Brake assist .................................................... 244
Break-in tips.....................................................135
Brightness control Instrument panel light control......... 72, 76
BSM (Blind Spot Monitor)....................... 203

439Alphabetical index
Meter control switches .............................. 78
Meters ........................................................70, 73
Multi-information display ........................... 77
Settings .............................................................. 82
Units ......................................................................81
Warning lights ............................................. 352
Warning message..................................... 362
Mirrors Inside rear view mirror..............................120
Outside rear view mirror defoggers260
Outside rear view mirrors ........................121
Vanity mirrors...............................................277
Moon roof Door lock linked moon roof operation................................................................ 127, 130
Jam protection function................. 127, 130
Operation..............................................126, 129
Multi-information display ............................. 77 Audio system-linked display.....................81
Boost gauge....................................................80
Drive information 1/Drive information 2............................................................................ 79
Driving information display...................... 79
Driving support system information dis- play ................................................................... 82
Dynamic radar cruise control with full- speed range ................................................193
Eco Driving Indicator ................................. 87
Gear Position ...................................................81
G-force................................................................81
LTA (Lane Tracing Assist)......................187
Menu icons ...................................................... 78
Meter control switches .............................. 78
Navigation system-linked display ..........81
Pop-up display............................................... 82
Settings .............................................................. 82
Suggestion function..................................... 83
Tire pressure ................................................ 323
Units ......................................................................81
Warning message..................................... 362
N
Navigation system-linked display..... 81, 84
Noise from under vehicle ...............................6
O
Odometer ................................................... 71, 76
Odometer and trip meter display “ODO TRIP” switch ............................. 71, 76
Display items ............................................ 71, 76
Pop-up display .......................................72, 76
“ODO TRIP”switch ................................. 71, 76
Oil Engine oil....................................................... 388
Opener Fuel filler door ................................................167
Hood ..................................................................312
Trunk ................................................................... 101
Outside door handle lig hts...................... 270
Outside rear view mirrors .......................... 121 Adjustment ....................................................... 121
BSM (Blind Spot Monitor)....................203
Folding............................................................... 122
Linked mirror functi on when reversing
............................................................................123
Mirror position memory ............................ 114
Outside rear view mirror defoggers260
RCTA function ............................................. 218
Outside temperature............................ 70, 73
Overheating ................................................... 381
P
Paddle shift switches ................................... 150
Panic mode ....................................................... 93
Panoramic moon roof Jam protection function ........................... 130
Operation ........................................................129
Parking assist sensors (intuitive parking assist) ................................................................ 211
Parking brake..................................................152 Operation ....................................................... 152

445Alphabetical index
· Audio/video system
· Navigation system
· Lexus parking assist monitor
· Panoramic view monitor
· Lexus Enform