Page 353 of 433
5
When trouble arises
335
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.A buzzer sounds and a warning message  is shown on the multi-informa-
tion display. Failing to investigate  the cause of the following warnings may
lead to the system operating abnormally  and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g  m e s s a g eDetails
(If equipped)
Indicates a malfunction in the AWD system.
(Flashing and then
 continuously on)
Indicates a malfunction in the tire pressure warning 
system. ( P.  2 76 )
(Flashing)
Indicates a malfunction in the steering lock system. 
         
        
        
     
        
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336
5-2. Steps to take in an emergency
Wa r n i n g  m e s s a g eDetails
(If equipped)
Indicates a malfunction in the pre-collision system.
(If equipped)
Indicates Lexus parking assist-sensor malfunction.The malfunctioning assist-sensor is shown flashing on 
the display.
(If equipped)
(Flashing)
Indicates a malfunction in the radar cruise control 
system.Stop the vehicle in a safe place. Switch the engine 
switch to OFF and then to IG-ON mode again to 
reset the cruise control system. 
         
        
        
     
        
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5
When trouble arises
339
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.A buzzer sounds and a warning message  is shown on the multi-informa-
tion display. After taking the spec ified steps to correct the suspected
problem, check that the warning message turns off.
Wa r n i n g  m e s s a g eDetailsCorrection procedure
Indicates that one or 
more of the doors is not 
fully closed.
The system also indi-
cates which doors are 
not fully closed.
 flashes and a 
buzzer sounds to indi-
cate that one or more of 
the doors is not fully 
closed (with the vehicle 
having reached a speed 
of 3 mph [5 km/h]).
Make sure that all of the 
doors are closed.
Indicates that the hood is 
not fully closed.
 flashes and a 
buzzer sounds to indi-
cate that hood is not fully 
closed (with the vehicle 
having reached a speed 
of 3mph [5km/h]).
Close the hood. 
         
        
        
     
        
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5
When trouble arises
343
5-2. Steps to take in an emergency
Wa r n i n g  m e s s a g eDetailsCorrection procedure
(Flashing and then con-tinuously on)
(If equipped)
(Flashing)Indicates that the radar 
cruise control system is 
unable to judge vehicle-
to-vehicle distance.
• Switch the driving mode to either the normal or 
PWR mode.
• If the windshield wipers  are on, turn them off or 
set them to either the 
intermittent or the slow 
mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle 
ahead (in radar cruise 
mode).
Slow the vehicle by apply-
ing the brakes.
■Changing the engine oil (U.S.A. only)
Make sure to reset the oil change system. ( P.  2 6 4 )
■Warning light display in radar cruise mode
In the following cases, the warning light  may not be displayed even if vehicle-to-
vehicle distance closes.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed 
         
        
        
     
        
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346
5-2. Steps to take in an emergency
InteriorbuzzerExterior buzzerWa r n i n g  m e s s a g eDetailsCorrection 
procedure
Once3 times
(For vehicles with an 
automatic transmission)
(Flashing)
Indicates that the 
driver’s door has 
been opened or 
closed with the 
shift lever in P, the 
engine switch in 
any mode other 
than OFF and the 
electronic key 
outside of the 
detection area.
Turn the engine 
switch OFF or 
confirm the loca-
tion of the elec-
tronic key.
OnceCon-
tinuous
(Displayed alternately)(For vehicles with an 
automatic transmission)
(Flashing)
Indicates that the 
driver’s door has 
been opened or 
closed (with the 
shift lever out of in 
P, the engine 
switch in any 
mode other than 
OFF and the elec-
tronic key outside 
of the detection 
area).
• Shift the shift lever to P.
•Confirm the  location of the 
electronic key.
Once
(Flashing)
Indicates that the 
key battery is low.Replace the bat-
tery. ( P.  2 9 3 ) 
         
        
        
     
        
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398
6-2. Customization
ItemFunctionDefault settingCustomizedsetting
Windshield 
wipers and 
washer 
(
P.  1 1 7 )
Switching operation when 
the vehicle is stationaryONOFF
Drip prevention functionONOFF
Time elapsed before the 
drip prevention function 
operatesVa r i a b l e  
depending on 
the vehicle 
speed
3 seconds
Lexus parking 
assist-sensor
(
P.  1 3 3 )
Back sensor operation 
display and buzzerONOFF
Buzzer volumeLevel 3Level 1 to 5
Illumination
(
P.  2 0 1 )
Time elapsed before lights 
turn off15 seconds7. 5  s e c o n d s
30 seconds
Operation when the 
doors are unlockedONOFF
Operation after the 
engine switch turned OFFONOFF
Front foot well lightingONOFF
Shift lever lightingONOFF
Outer foot lightONOFF 
         
        
        
     
        
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405
Alphabetical index
CD player................................................... 181
Chains ......................................................... 153
Child restraint system (CRS)Booster seats, definition.................... 68
Booster seats, installation .................. 72
Convertible seats, definition ........... 68
Convertible seats, installation ......... 72
Infant seats, definition ......................... 68
Infant seats, installation........................ 72
Installing CRS with lower anchorages ...........................................75
Installing CRS with seatbelts ........... 72
Installing CRS with top straps .........76
Child safety Airbag precautions ............................. 63
Battery precautions .............. 273, 364
Child restraint system ........................ 68
Child-protectors..................................... 16
How your child should wear the seatbelt ............................................33
Installing child restraints .......................71
Moon roof .................................................46
Power window lock switch ............... 41
Power window precautions.............43
Removed electronic key battery  precautions ....................................... 294
Seat belt comfort guide....................... 31
Seat belt extender precautions ..... 35
Seat belt precautions...........................34
Seat heater precautions ........221, 223
Trunk ..............................................................21
Child-protectors ....................................... 16
Cigarette lighter ..................................... 218 Cleaning
Exterior.................................................... 244
Interior ..................................................... 246
Seat belts ................................................ 247
Clock .......................................................... 213
Coat hooks ..............................................228
Compass ..................................................238
Condenser .............................................. 270
Console box ...........................................206
Cooling system Engine overheating.......................... 365
Cornering assist sensors .................... 133
Cruise control Cruise control......................................... 121
Dynamic radar cruise control........124
Cup holder ............................................. 208
Curtain shield airbags............................ 57
Customizable features .......................395
Daytime running light system ............. 114
Defogger Rear window ......................................... 170
Side mirror.............................................. 170
Dimension................................................ 370
Dinghy towing ............................... 157, 158
Display Dynamic radar cruise control........124
Satellite switch mode .........................214
Trip information ..................................... 110
Warning message .............................334
Do-it-yourself maintenance .............255
Door courtesy lights Door courtesy lights .......................... 201
Wattage ................................................. 383
Door pockets..........................................209
D 
         
        
        
     
        
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406
Alphabetical index
DoorsDoor glasses ............................................. 41
Door lock.................................................... 15
Side mirrors ............................................. 39
Driver's seat belt reminder light ...... 331
Driving Correct posture .................................... 55
Procedures .............................................. 82
Driving position memory ...................... 24
Electric power steering (EPS).......... 139
Electronic key If your electronic key battery is discharged ....................................359
Emergency, in case of If the engine will not start ...............356
If the shift lever cannot be shifted from P ................................... 357
If the vehicle has discharged  battery .................................................. 362
If the warning buzzer sounds ...... 329
If the warning light turns on .......... 329
If the warning message is 
displayed ............................................ 334
If you have a flat tire .........................348
If you lose your keys.........................358
If you think something is  wrong ................................................... 325
If your electronic key battery  is discharged ....................................359
If your vehicle becomes stuck..... 367
If your vehicle needs to be  towed .................................................... 318
If your vehicle overheats ................365
Engine Compartment ....................................... 261 Engine switch ......................................... 89
Hood ....................................................... 258
How to start the engine .................... 89
If the engine will not start ............... 356
Overheating ........................................ 365
Engine compartment cover ............. 263
Engine coolant Capacity .................................................374
Checking............................................... 268
Preparing and checking before winter........................................151
Engine coolant temperature  gauge ...................................................... 100
Engine immobilizer system ................. 50
Engine oil Capacity .................................................373
Checking................................................264
Preparing and checking before winter........................................151
Engine oil maintenance data ........... 267
EPS (Electric power steering) ..........139
Event data recorder ............................ 327
First-aid kit storage belt ..................... 230
Floor mat .................................................. 229
Fluid Brake ........................................................270
Washer.................................................... 274
Fog lights Switch .......................................................... 116
Wattage ................................................. 383
Foot well lighting.................................... 201
Front fog lights Switch .......................................................... 116
Wattage ................................................. 383
E
F