brake light LEXUS RX450h 2016 Service Manual

5597-2. Steps to take in an emergency
7
When trouble arises
RX450h_U_OM0E013U WA R N I N G ■
When using the compact spare tire ●
Remember that the compact spare tire provid ed is specifically designed for use with
your vehicle. Do not use your compact spare tire on another vehicle. ●
Do not use more than one compact spare tire simultaneously. ●
Replace the compact spare tire with a standard tire as soon as possible.●
Avoid sudden acceleration, ab rupt steering, sudden bra king and shifting operations
that cause sudden engine braking. ■
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
Also, not only can the following system not be utilized fully, but it may even negatively
affect the drive-train components:
•E-Four (AWD models) ■
Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.■
After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.• ABS & Brake assist
•VSC
•TRAC
•EPS
• Trailer Sway Control
•VDIM
• Adaptive Variable Suspension System
(if equipped)
• Cruise control (if equipped)
• Dynamic radar cruise control (if
equipped)
• Dynamic radar cruise control with full-
speed range (if equipped)
• PCS (Pre-Collision System) (if
equipped) • LDA (Lane Departure Alert with
steering control) (if equipped)
• LKA (Lane-Keeping Assist) (if
equipped)
• Automatic High Beam (if equipped)
• AFS (Adaptive Front-lighting System)
(if equipped)
• Tire pressure warning system
• Intuitive parking assist
• Lexus parking assist monitor (if
equipped)
• Panoramic view monitor (if equipped)
• BSM (Blind Spot Monitor)
• Navigation system

562 7-2. Steps to take in an emergency
RX450h_U_OM0E013U One of the following may be the cause of the problem: ●
The 12-volt battery may be discharged. (  P. 5 6 8 )●
One or both of the 12-volt battery terminals may be disconnected. (  P. 4 8 3 )Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the hybrid system does not start, the following steps can be used as an
interim measure to start the hybrid system if the power switch is functioning nor-
mally.
Do not use this starting procedur e except in cases of emergency.
Turn the power switch to ON mode and check that the parking brake is set.
(  P. 2 3 3 , 2 4 5 )
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for ab out 15 seconds while depressing the
brake pedal firmly.
Even if the hybrid system can be starte d using the above steps, the system may
be malfunctioning. Have the vehicle inspected by your Lexus dealer.The interior lights and headlights do not turn on, or the horn does not
sound.
Emergency start function 1
2
3
4

638 What to do if... (Troubleshooting)
RX450h_U_OM0E013U ●
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (  P. 5 3 8 )●
The parking brake indicator is on
Is the parking brake released? (  P. 2 4 5 )
Depending on the situation, other type s of warning buzzer may also sound.
(  P. 5 3 6 , 5 4 3 ) ●
Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (  P. 8 7 )
Do one of the following to stop the alarms: • Unlock the doors.
• Turn the power switch to ACCESSORY or ON mode, or start the hybrid system.
●
Is the message displayed on the multi-information display?
Check the message on the multi-information display. (  P. 5 4 3 )●
When a warning light turns on or a warning message is displayed, refer to
P. 5 3 6 , 5 4 3 . A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

640
RX450h_U_OM0E013U Alphabetical index
Alphabetical index A/C ............................................................ 405
Air conditioning filter......................... 501
Automatic air conditioning
system ................................................. 405
ABS (Anti-lock Brake System)........ 381
Warning light .......................................537
Adaptive Front-lighting System
(AFS) ...................................................... 252
Adaptive Variable Suspension
System ................................................... 382
AFS (Adaptive Front-lighting
System) .................................................. 252
Air conditioning filter ........................... 501
Air conditioning system ..................... 405
Air conditioning filter......................... 501
Automatic air conditioning
system ................................................. 405
S-FLOW mode ................................. 406 Airbags ........................................................ 38
Airbag operating conditions .......... 46
Airbag precautions for your
child............................................................ 41
Airbag warning light ........................ 536
Correct driving posture .................... 30
Curtain shield airbag
operating conditions ....................... 46
Curtain shield airbag
precautions .......................................... 44
Front passenger occupant
classification system........................... 51
General airbag precautions ............. 41
Locations of airbags............................ 38
Modification and disposal of
airbags .................................................... 45
Seat cushion airbag ............................. 38
Side airbag operating
conditions ............................................. 46
Side airbag precautions ...................... 41
Side and curtain shield airbags
operating conditions ....................... 46
Side and curtain shield airbags
precautions ............................................ 41
SRS airbag instructions
for Canadian owners ................... 624
SRS airbags ............................................. 38
Alarm ............................................................87A

641Alphabetical index
RX450h_U_OM0E013U Anchor brackets ........................................ 61
Antenna
Smart access system
with push-button start ................... 158
Anti-lock Brake System (ABS)........ 381
Warning light .......................................537
Approach warning.....................318, 330
Armrest .................................................... 443
Assist grips .............................................. 444
Audio system
* Automatic air conditioning
system .................................................... 405
Air conditioning filter......................... 501
Automatic air conditioning
system ................................................. 405
S-FLOW mode ............................... 406
Automatic headlight leveling
system .................................................... 253
Automatic High Beam ....................... 255
Automatic light control system.........251
Auxiliary boxes ...........................426, 430
Back door
Power back door .................................142
Touchless power back door ......... 144
Wireless remote control ..................142
Back-up lights
Replacing light bulbs ......................... 513
Wattage ................................................. 590 Battery (12-volt battery)
Battery checking ................................483
If the 12-volt battery is
discharged........................................ 568
Preparing and checking before
winter....................................................390
Warning light .......................................536
Battery (traction battery) ..................... 80
Blind Spot Monitor (BSM) ............... 363
Blind Spot Monitor
function ............................................367
Rear Cross Traffic Alert
function ............................................. 371
Bottle holders .........................................425
Brake
Brake Hold ........................................... 249
Fluid ......................................................... 588
Parking brake ...................................... 245
Regenerative braking ......................... 78
Warning light .......................................536
Brake assist ...............................................381
Brake Hold...............................................249
Warning light ....................................... 537
Break-in tips ........................................... 206
Brightness control
Instrument panel light control ........ 99
BSM (Blind Spot Monitor) ............... 363
Blind Spot Monitor function......... 367
Rear Cross Traffic Alert
function.................................................. 371B
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

644 Alphabetical index
RX450h_U_OM0E013U Driving
Break-in tips ........................................ 206
Correct posture.....................................30
Driving mode select switch .......... 377
Hybrid vehicle driving tips.............387
Procedures ...........................................204
Winter drive tips ................................ 390
Driving position memory..................... 174
Memory recall function..................... 177
Power easy access system .............174
Dynamic radar cruise control ......... 323
Dynamic radar cruise control
with full-speed range .......................... 311
E-Four ....................................................... 382
ECB (Electronically Controlled
Brake System) ..................................... 381
Eco drive mode ......................................377
EDR (Event data recorder) .................... 11
Electric motor
Location ..................................................... 76
Specification ........................................ 584
Electric Power Steering (EPS) ........ 381
Warning light .......................................537
Electronic key ..........................................132
Battery-saving function .................... 159
If the electronic key does not
operate properly............................ 564
Replacing the battery ...................... 506 Electronically Controlled
Brake System (ECB) .........................381
Emergency flashers ............................ 528
Emergency, in case of
If a warning buzzer sounds ..........536
If a warning light turns on .............. 536
If a warning message is
displayed ............................................ 543
If the 12-volt battery is
discharged........................................ 568
If the electronic key does not
operate properly ............................ 564
If the hybrid system will
not start .................................................561
If you have a flat tire .......................... 549
If you lose your keys................ 133, 135
If you think something is
wrong...................................................535
If your vehicle becomes
stuck...................................................... 578
If your vehicle has to
be stopped in an
emergency ........................................ 529
If your vehicle needs to be
towed ...................................................530
If your vehicle overheats ................ 574
Energy monitor ....................................... 124E

645Alphabetical index
RX450h_U_OM0E013U Engine
ACCESSORY mode...................... 233
Compartment ......................................475
Engine switch ....................................... 232
Hood ........................................................ 473
How to start the hybrid
system .................................................. 232
Identification number ...................... 583
If your vehicle has to be
stopped in an emergency ..........529
Ignition switch (power switch) .... 232
Overheating .........................................574
Power switch........................................ 232
Engine coolant
Capacity ................................................ 587
Checking................................................ 479
Preparing and checking
before winter ................................... 390
Engine coolant temperature
gauge .........................................................97
Engine oil
Capacity ................................................ 585
Checking................................................ 476
Preparing and checking
before winter ................................... 390
Engine oil maintenance data ........... 478
Engine switch ......................................... 232
Enhanced VSC ...................................... 381
EPS
(Electronic Power Steering) ......... 381
Warning light .......................................537
EV drive mode....................................... 237
EV indicator ............................................... 78
Event data recorder (EDR) .................... 11 Flat tire ...................................................... 549
Floor mats................................................... 28
Fluid
Brake....................................................... 588
Transmission ....................................... 588
Washer ................................................... 482
Fog lights
Replacing light bulbs .........................513
Switch ...................................................... 259
Front passenger footwell
hooks.......................................................442
Front passenger occupant
classification system ............................. 51
Front passenger’s seat belt
reminder light ..................................... 538
Front seat heaters .................................. 415
Front seats ................................................. 164
Adjustment..............................................164
Cleaning................................................. 462
Correct driving posture .................... 30
Driving position memory................. 174
Head restraints ..................................... 179
Power easy access system ............. 174
Seat heaters ............................................415
Seat position memory ....................... 174
Front side marker lights
Light switch............................................. 251
Replacing light bulbs .........................513
Wattage ................................................ 590 F

651Alphabetical index
RX450h_U_OM0E013U Paddle shift switches ................. 240, 241
Panic mode ...............................................133
Panoramic moon roof .......................... 197
Jam protection function ................... 198
Operation ................................................197
Parking brake......................................... 245
Parking brake engaged
warning buzzer/message.......... 247
Warning light .......................................537
Parking lights
Light switch ............................................ 251
Replacing light bulbs ......................... 513
PCS (Pre-Collision System) ............ 279
Warning light ...................................... 538
Personal lights..........................................419
Power back door .................................... 142
Touchless power back door ......... 144
Wireless remote control ..................142
Power back door opener and
closer........................................................ 142 Power control unit coolant
Capacity ................................................. 587
Checking ............................................... 479
Preparing and checking
before winter ....................................390
Radiator ................................................. 480
Power easy access system ................. 174
Power outlets ............................... 440, 441
Power steering (Electric Power
Steering system)..................................381
Warning light ....................................... 537
Power switch...........................................232
Power windows
Door lock linked window
operation ............................................... 191
Jam protection function................... 190
Operation............................................... 189
Window lock switch ......................... 189
Pre-Collision System (PCS)............. 279
Warning light .......................................538P
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

655Alphabetical index
RX450h_U_OM0E013U Sun visors ................................................. 432
Sunshade
Panoramic moon roof .......................197
Rear door...............................................443
Roof............................................................ 194
Switches
Automatic High Beam switch .... 255
Brake hold switch ..............................249
Cruise control
switch............................... 311, 323, 335
Door lock switch ................................. 138
Driving mode select switch .......... 377
Driving position memory
switches .................................................174
Electronic sunshade switch ............197
Emergency flashers switch .......... 528
EV drive mode switch ..................... 237
Fog light switch ...................................259
Garage door opener
switches ...............................................445
Heated steering wheel
switch..................................................... 415
HUD (Head-up display)
switches .................................................. 118
Ignition switch ...................................... 232
LDA (Lane Departure Alert)
switch................................................... 305
Light switch ............................................ 251
LKA (Lane-Keeping Assist)
switch....................................................296
Meter control switches .................... 104
Moon roof switches........................... 193
“ODO/TRIP” switch ......................... 105
Outside rear view mirror
switches ................................................ 185 Paddle shift switches.............. 240, 241
Panoramic moon roof
switches ................................................ 197
Parking brake switch ....................... 245
Power back door opener
and closer switch .................. 143, 145
Power switch ....................................... 232
Power window switch ...................... 189
Rear window and
outside rear view mirror
defoggers switch............................409
Rear window wiper and
washer switch .................................. 265
Seat heater switches ............... 415, 416
Seat ventilator switches ....................416
“SOS” button ....................................... 452
Vehicle-to-vehicle
distance button........................311, 323
VSC OFF switch ...............................383
Window lock switch ......................... 189
Windshield wipers and
washer switch .................................. 260

658 Alphabetical index
RX450h_U_OM0E013U Warning lights
ABS ...........................................................537
Brake hold operated
indicator ..............................................537
Brake system....................................... 536
Charging system............................... 536
Electric power steering...................537
LDA indicator ......................................537
LKA indicator.......................................537
Low fuel level ...................................... 538
Malfunction indica tor lamp .......... 536
Master warning light........................ 538
Parking brake indicator ..................537
PCS warning light ............................ 538
Seat belt reminder light.................. 538
Slip indicator .........................................537
SRS ........................................................... 536
Tire pressure ....................................... 538
Warning messages .............................. 543
Washer
Checking................................................482
Low washer fluid
warning message .............. 482, 543
Preparing and checking
before winter ................................... 390
Switch.......................................... 260, 265
Washing and waxing........................... 458 Weights
Cargo capacity.........................212, 582
Load limits .................................. 216, 582
Weights ..................................................582
Wheels ..................................................... 499
Replacing wheels .............................. 499
Size .......................................................... 589
Window glasses......................................189
Window lock switch..............................189
Windows
Power windows................................... 189
Rear window defogger ..................409
Washer .......................................260, 265
Windshield wiper de-icer ................. 409
Windshield wiper inserts .................. 504
Windshield wipers ............................... 260
Rain-sensing windshield
wipers................................................... 260
Replacing a windshield wiper
insert .....................................................504
Winter driving tips ............................... 390