brake light Lexus HS250h 2012 Owner's Guide

5
When trouble arises
549
5-2. Steps to take in an emergency
HS250h_U_75050U
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■When the 12-volt battery is discharged
●The hybrid system may not start. (→P. 4 4 8 )
●If the 12-volt battery is depleted with the shift position in P, it will not be possible
to shift out of P. In this case, the vehicle cannot be towed without lifting both
front wheels because the front wheels are locked by the parking lock.
(→ P. 4 9 5 )
●When the 12-volt battery is reconnected, start the hybrid system, depress the
brake pedal, and confirm that it is possible to shift into each shift position.
■Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the 12-volt battery may dis-
charge, and the hybrid system may be unable to start. (The 12-volt battery
recharges automatically while the hybrid system is operating.)
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables
in the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover and reinstall
the fuse box cover.
Once the hybrid system starts, ha ve the vehicle inspected at your
Lexus dealer as soon as possible.

554
5-2. Steps to take in an emergency
HS250h_U_75050UCheck that the coolant level of the
power control unit is between the
“FULL” and “LOW” lines of the
reservoir tank.
“FULL” line
“LOW” line
If the coolant level of the power
control unit is insufficient, add
more coolant.
If power control unit coolant is
unavailable, water can be used as
an emergency substitute.
Restart the hybrid system (depress and hold the brake pedal, and
press the “POWER” switch once). Check that the “HYBRID
SYSTEM OVERHEAT” message has gone off.
If the warning message remains on, stop the hybrid system and
contact your Lexus dealer.
Have the vehicle inspected at the nearest Lexus dealer as soon as possi-
ble.
■Overheating
The following symptoms may occur when your vehicle is overheating:
●The high engine coolant temperature warning light comes on or flashes, or the
hybrid system output decreases.
●Steam comes out from the engine area.
●“HYBRID SYSTEM OVERHEAT” is displayed on the multi-information display.

566
6-1. Specifications
HS250h_U_75050U
Brakes
*1: Minimum pedal clearance when depressed with a force of 44 lbf (196 N, 20
kgf) while the hybrid system is running
*2: Parking brake pedal travel when depressed with a force of 67 lbf (300 N, 31kgf)
Steering
NOTICE
■Hybrid transaxle fluid type
Using hybrid transaxle fluid other than “Toyota Genuine ATF WS” may ultimately
damage the hybrid transaxle of your vehicle.
Pe d a l c l e a r a n c e *1
Vehicles without scuff lights
Vehicles with scuff lights3.1 in. (78 mm) Min.
3.1 in. (80 mm) Min.
Pedal free play0.04  0.24 in. (1  6 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel *28  11 clicks
Fluid typeSAE J1703 or FMVSS No.116 DOT 3
Free playLess than 1.2 in. (30 mm)

612
HS250h_U_75050U
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/CAir Conditioning
ABSAnti-lock Brake System
AFSAdaptive Front-lighting System
ALRAutomatic Locking Retractor
CALCalibration
CRSChild Restraint System
ECOEconomy/Ecology
ECUElectronic Control Unit
EDREvent Data Recorder
ELREmergency Locking Retractor
EPSElectric Power Steering
GAWRGross Axle Weight Ratings
GPSGlobal Positioning System
GVWRGross Vehicle Weight Rating
HUDHead-up Display
I/MEmission Inspection and Maintenance
LATCHLower Anchors and Tethers for Children
LEDLight Emitting Diode
LKALane-Keeping Assist
MMTMethylcyclopentadienyl Manganese Tricarbonyl
M + SMud and Snow
MTBEMethyl Tertiary Butyl Ether
OBDOn Board Diagnostics
PCSPre-Collision System
SRSSupplemental Restraint System

614
HS250h_U_75050U
Alphabetical index
Alphabetical index
A/C*Air conditioning filter ....................... 464
Automatic air conditioning system .................................................. 266
ABS.............................................................238
AFS .............................................................. 193
Adaptive front lighting system ......... 193
Air conditioning filter .......................... 464
Air conditioning system* Air conditioning filter ....................... 464
Automatic air conditioning system .................................................. 266
Airbags Airbag operating
conditions...............................................112
Airbag precautions for your
child.......................................................... 116
Airbag warning light ........................503
Curtain shield airbag operating conditions...............................................113
Curtain shield airbag precautions .......................................... 116
Front passenger occupant classification system..........................121
General airbag pr ecautions ........... 116
Locations of airbags.......................... 109
Modification and disposal of airbags ...................................................120
Proper driving posture ............ 107, 116
Side airbag operating conditions...............................................113
Side airbag precautions .................... 116
Side and curtain shield airbags operating conditions ........................113
Side and curtain shield airbags precautions .......................................... 116
SRS airbags ........................................... 109 Alarm.......................................................... 103
Antenna .................................................... 284
Anti-lock brake system ...................... 238
Armrest ......................................................391
Audio input* .............................................321
Audio remote control switches*
Audio system*
Antenna.................................................. 284
Audio input............................................. 321
Audio visual input................................ 321
AUX port ................................................ 321
CD player ..............................................287
CD player/changer ..........................287
iPod .......................................................... 302
MP3/WMA disc............................... 295
Optimal use ........................................... 318
Portable music player ....................... 321
Radio ........................................................279
Steering wheel audio switch......... 322
USB memory ........................................ 310
Audio/video system*
Audio visual input* .................................321
Automatic air conditioning system* Air conditioning filter ....................... 464
Air conditioning system ................. 266
Automatic air conditioning
system.................................................. 266
Automatic headlight leveling
system ..................................................... 195
Automatic light control system.......... 191
AUX port* ................................................321
Auxiliary box .......................................... 384A

615
Alphabetical index
HS250h_U_75050U
Back-up lightsReplacing light bulbs .........................481
Wattage .................................................568
Battery
Checking ................................................447
If the vehicle has a discharged 12-volt battery .................................. 547
Preparing and checking
before winter.................................... 258
Bluetooth
®* ........................................... 325
Bottle holders ........................................ 383
Brake Fluid .......................................................... 566
Parking brake ........................................ 167
Brake assist ............................................. 238
Break-in tips ............................................. 143
Brightness control Instrument panel light
control ................................................... 170
Care Exterior ..................................................... 416
Interior..................................................... 420
Seat belts ................................................. 421
Cargo capacity ......................................257
CD changer* ..........................................287
CD player* ..............................................287
Chains....................................................... 259
Child restraint system Booster seats, definition................... 126
Booster seats, installation ................130
Convertible seats, definition .......... 126
Convertible seats, installation .......130
Front passenger occupant
classification system ......................... 121 Infant seats, definition .........................126
Infant seats, installation ..................... 130
Installing CRS with LATCH
anchors................................................... 131
Installing CRS with seat belts ........ 133
Installing CRS with top tether straps ......................................................137
Child safety
Airbag precautions .............................. 116
Child restraint system ........................126
Child-protectors ................................... 62
How your child should wear the seat belt .......................................... 79
Installing child restraints................... 130
Moon roof precautions......................96
Power window lock switch ..............90
Power window precautions ............ 92
Removed electronic key battery
precautions....................................... 468
Seat belt extender precautions...... 82
Seat belt precautions ......................... 80
Seat heater precautions................. 390
Trunk precautions.................................66
12-volt battery precautions ...........449
Child-protectors ...................................... 62
Cleaning Exterior..................................................... 416
Interior .....................................................420
Seat belts ..................................................421
Climate control*
Clock* ....................................................... 387
Coin holder ............................................ 380
Compass ..................................................404
Condenser .............................................. 444
Console box ........................................... 379
B
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.
C

617
Alphabetical index
HS250h_U_75050U
Compartment ......................................437
Engine switch ........................................ 152
Hood ....................................................... 434
How to start the engine.................... 152
How to start the hybrid system.................................................... 152
Identification number.......................560
If the engine will not start ................. 541
If the hybrid system will not start.......................................................... 541
Ignition switch........................................ 152
Overheating......................................... 552
Power switch ......................................... 152
Engine compartment cover............. 438
Engine coolant Capacity................................................. 564
Checking ................................................442
Preparing and checking
before winter.................................... 258
Engine/power control unit coolant
Capacity................................................. 564
Checking ................................................442
Preparing and checking before winter.................................... 258
Engine immobilizer system ................. 101
Engine oil Capacity................................................. 563
Checking ............................................... 439
Preparing and checking before winter.................................... 258
Engine switch ........................................... 152
Enhanced VSC ..................................... 238
EPS............................................................. 238
EV drive mode switch .......................... 157
Event data recorder ............................... 20 Floor mat .................................................. 394
Fluid
Brake ....................................................... 566
Washer ...................................................446
Fog lights Replacing light bulbs ......................... 481
Switch.......................................................202
Wattage................................................. 568
Foot light................................................... 374
Foot well lighting ................................... 374
Front fog lights Replacing light bulbs ......................... 481
Switch.......................................................202
Wattage................................................. 568
Front passenger occupant classification system ............................ 121
Front passenger's seat belt reminder light..................................... 505
Front seats Adjustment ...............................................68
Driver’s seat position memory ....... 72
Front side marker light
Replacing light bulbs ......................... 481
Wattage................................................. 568
Front turn signal lights Replacing light bulbs ......................... 481
Switch........................................................ 166
Wattage................................................. 568
Fuel Capacity .................................................562
Fuel gauge.............................................. 169
Gas station information ................. 628
Information ........................................... 569
Refueling.................................................... 97
Type ......................................................... 569
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.
F

620
Alphabetical index
HS250h_U_75050U
Outside rear view mirrorsAdjusting and folding ......................... 87
Driving position memory................... 72
Mirror position memory ....................72
Outside rear view mirror defogger switch* ............................... 274
Outside temperature display.............177
Overhead console ...............................384
Overheating, Engine...........................552
Overheating, Hybrid system ...........552
Parking brake ...........................................167
Parking lights Replacing light bulbs......................... 481
Switch ......................................................... 191
Wattage................................................. 568
PCS ............................................................ 245
Personal lights Personal lights ..................................... 375
Switch ...................................................... 375
Wattage................................................. 568
Power easy access system................... 69
Power outlet........................................... 388
Power switch ........................................... 152
Power windows ........................................90
Pre-collision system.............................245
Radar cruise control ............................. 216
Radiator .................................................... 444
Radio* ....................................................... 279
Radio data system* ............................... 281
RDS* ........................................................... 281
Rear side marker lights Replacing light bulbs..........................491
Wattage................................................. 568
Rear sunshade .......................................392 Rear turn signal lights
Replacing light bulbs ......................... 481
Wattage .................................................568
Rear view mirror
Compass ............................................... 404
Rear view monitor system*
Rear window defogger* .....................274
Remote Touch*
Replacing Electronic key battery ......................467
Fuses........................................................ 469
Light bulbs .............................................. 481
Tires.......................................................... 532
Reporting safety defects for
U.S. owners..........................................598
Reset the maintenance data ............ 424
Safety connect .......................................408
Scuff lighting ........................................... 374
Seat belts
Adjusting the seat belt ........................78
Automatic Locking Retractor ......... 79
Child restraint system installation ............................................ 130
Cleaning and maintaining the seat belt......................................... 421
Emergency Locking Retractor ...... 79
How to wear your seat belt ............. 77
How your child should wear the seat belt........................................... 79
Pre-collision seat belts.................... 245
Pregnant women, proper seat belt use ......................... 79
Reminder light.....................................505
Seat belt extenders.............................. 80
Seat belt pretensioners ......................78
P
R
S

623
Alphabetical index
HS250h_U_75050U
Warning buzzersBrake system ....................................... 502
Open door ..........................................505
Seat belt reminder ............................505
Warning lights AFS OFF ...............................................503
Anti-lock brake system ..................503
Brake assist system ..........................503
Brake system ....................................... 502
Charging system ............................... 502
Cruise control .....................................503
Electric power steering
warning light .....................................503
Electronic engine control
system..................................................503
High coolant temperature ............ 502
LKA ..........................................................503
Low fuel level.......................................505
Low tire pressure ..............................505
Malfunction indicator lamp ..........503
Master warning light ........................505
Open door ...........................................505
Pre-collision system .........................503
Pretensioner.........................................503
Radar cruise co ntrol ........................503
Seat belt reminder light ..................505
Slip indicator ........................................503
SRS airbags ..........................................503
Tire pressure warning light...........505 Warning messages
Cruise control....................................... 513
Dynamic radar cruise control .........................................513, 516
Electric power steering system ................................................... 513
Engine oil maintenance ................... 516
Engine oil pressure ............................ 512
EV drive mode..................................... 516
Headlight................................................. 513
Hood ......................................................... 516
Hybrid system....................................... 512
Intuitive parking assist .............513, 516
Key.............................................................524
Lane-Keeping Assist ......................... 516
Moon roof .............................................. 516
Open door ............................................. 516
Parking brake ....................................... 516
Pre-collision system.................513, 516
Smart access system with push start ............................................524
Tire pressure warning
system ................................................... 516
Trunk ......................................................... 516
Washer fluid .......................................... 516
Washer
Checking ...............................................446
Preparing and checking before winter ................................... 258
Switch.......................................................204
Washing and waxing ............................ 416
Weight Cargo capacity ................................... 257
Load limits ............................................. 257
Weight.................................................... 560
*: For vehicles with a navigation system, refer to “Navigation System Owner’s Manual”.
W

627
What to do if...
HS250h_U_75050U
■Warning lights
*1: Slip indicator comes on.
*2: The light flashes to indicate a malfunction.
P. 5 0 4
or
P. 5 0 2P. 5 0 4
P. 5 0 2P. 5 0 4
P. 5 0 3P. 5 0 4
P. 5 0 3P. 5 0 4
P. 5 0 5
or
P. 5 0 3P. 5 0 5
P. 5 0 3P. 5 0 5
P. 5 0 5
or
P. 5 0 3P. 5 0 5
P. 5 0 4P. 5 0 5
P. 5 0 4P. 5 0 6
Brake system warning light“AFS OFF” indicator light*2
Slip indicator light*1
Charging system warning
light“LKA” indicator light*2
High engine coolant temperature
warning lightCruise control indicator
light*2
Brake system warning lightRadar cruise control
indicator light*2
Malfunction indicator lampAutomatic High Beam
indicator light*2
Open door warning light
SRS warning lightLow fuel level warning light
“ABS” warning lightDriver’s seat belt reminder
light
Front passenger’s seat belt
reminder light
Electric power steering system warning lightMaster warning light
“PCS” warning light*2Tire pressure warning light