warning light Lexus HS250h 2011 Hybrid system / LEXUS 2011 HS250H (OM75037U) Service Manual

508
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. Failure 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
Indicates a malfunction in the P position control
A buzzer also sounds.
In this situation, there is a possibility that the parking
lock mechanism will not work.
When parking, park the vehicle on a flat surface and
apply the parking brake securely. Also, it may not be
possible to turn the “POWER ” switch off. If this hap-
pens, applying the parking brake will enable the
switch to be turned off.
(Flashes)
(If equipped)
Indicates a malfunction in the LED headlight system A buzzer also sounds.
(Flashes)
(If equipped)
Indicates a malfunction in the pre-collision system A buzzer also sounds.

510
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
Failure to investigate the cause of th e following warning 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
(Flashes and
then remains
on)
Indicates a malfunction in the tire pressure warning
system
The tire pressure warning light comes on after flash-
ing for 1 minute.

5
When trouble arises
519
5-2. Steps to take in an emergency
Have the malfunction repaired immediatelyAfter taking the specified steps to co rrect the suspected problem, check
that the warning message and light go off.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Flashes)
The electronic key
is not detected
when an attempt
is made to start
the hybrid system.Start the hybrid
system with the
electronic key
present.
Once3 times
(Flashes)
The electronic key
was carried out-
side the vehicle
and a door other
than the driver's
door was opened
and closed while
the “POWER”
switch was in a
mode other than
off.
Bring the elec-
tronic key back
into the vehicle.
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
the shift position P
was selected with-
out turning off the
“POWER” switch.
Tu r n t h e
“POWER” switch
off or bring the
electronic key
back into the vehi-
cle.

526
5-2. Steps to take in an emergency
■Warning light display in radar cruise mode
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance decreases:
●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
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P. 4 3 2 )

532
5-2. Steps to take in an emergency
Firmly tighten each wheel nut two
or three times in the order shown
in the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(  P. 563)
■After completing the tire change
The tire pressure warning system must be reset. ( P. 4 4 5 )
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you repl ace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle. Perform the
following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.

548
5-2. Steps to take in an emergency
If your vehicle overheats
Correction procedures■ If the engine coolant temperature warning light comes on or flashes
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the steam
subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the high engine coolant temperature warning light goes
off and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call your Lexus dealer.
The following may indicate that your vehicle is overheating:
●The high engine coolant temperature warning light comes on or
flashes:
The engine may be overheating.
● “HYBRID SYSTEM OVERHEAT” is sh own on the multi-information
display:
The power control unit may be overheating.
Follow the correction procedure as described below.

610
Alphabetical index
Alphabetical index
A/C (vehicles without navigation system)Air conditioning filter .......................456
Automatic air conditioning system .................................................. 256
A/C (vehicles with navigation system)*
ABS............................................................. 229
AFS ..............................................................188
Adaptive front lighting system .........188
Air conditioning filter ..........................456
Air conditioning system (vehicles without navigation system)Air conditioning filter .......................456
Automatic air conditioning
system .................................................. 256
Air conditioning system (vehicles with navigation
system)*
Airbags Airbag operating conditions............................................ 109
Airbag precautions for your child...........................................................113
Airbag warning light ........................ 499
Curtain shield airbag operating conditions.............................................. 110
Curtain shield airbag precautions ...........................................113
Front passenger occupant classification system......................... 118
General airbag precautions ............113
Locations of airbags.......................... 106 Modification and disposal of
airbags..................................................... 117
Proper driving post ure ............ 104, 113
Side airbag operating conditions ..............................................110
Side airbag precautions..................... 113
Side and curtain shield airbags operating conditions ........................110
Side and curtain shield airbags precautions ........................................... 113
SRS airbags ............................................106
Alarm .......................................................... 100
Antenna .....................................................274
Anti-lock brake system ...................... 229
Armrest ..................................................... 381
Audio input (vehicles without navigation system) ............................... 311
Audio input (vehicles with navigation system)*
Audio remote control switches*
Audio system (vehicles without navigation system)Antenna................................................... 274
Audio input ............................................... 311
Audio visual input.................................. 311
AUX port .................................................. 311
CD player .............................................. 277
CD player/changer .......................... 277
MP3/WMA disc............................... 285
Optimal use .........................................308
Portable music player ......................... 311
Radio ....................................................... 269
Steering wheel audio switch.......... 312A

613
Alphabetical index
Cooling systemEngine overheating .......................... 548
Cruise control Cruise control ..................................... 204
Dynamic radar cruise control .....208
Cup holders.............................................. 371
Curtain shield airbags ..........................106
Customizable features ...................... 580
Daytime running light system............189
Defogger (vehicles without navigation system)Rear window........................................ 264
Side mirrors.......................................... 264
Defogger (vehicles with navigation system)*
Dimensions ............................................. 556
Dinghy towing ....................................... 253
Display Dynamic radar cruise control ................................................. 208
Multi-information display................. 172
Trip information .................................... 175
Warning message ............................ 507
Do-it-yourself maintenance..............422
Door courtesy lights Door courtesy lights ........................ 364
Wattage ................................................. 564 Doors
Door glasses ........................................... 87
Door lock ............................... 45, 55, 58
Rear door child protector ................59
Side doors ............................................... 58
Side mirrors .............................................84
Driver’s seat belt reminder light ...... 501
Driver’s seat position memory ........... 69
Driving Break-in tips .......................................... 139
Correct posture................................... 104
Procedures ............................................ 138
Winter driving tips ............................. 249
Driving position memory ...................... 69
Electric power steering ...................... 229
Electronic key If the electronic key does not operate properly ........................... 540
Emergency, in case of If the electronic key does not operate properly ........................... 540
If the engine will not start................537
If the hybrid system will not start ........................................................537
If the 12-volt battery is discharged .........................................543
If the warning buzzer sounds ..... 498
If the warning light turns on.......... 498
If the warning message is displayed............................................ 507
D
*: Refer to “Navigation System Owner’s Manual”.
E

620
Alphabetical index
Smart access system with push-button startAntenna location....................................47
Entry functions ....................................... 45
Starting the engine .............................. 147
Starting the hybrid system............... 147
Smart entry & start system Antenna location....................................47
Entry function.......................................... 45
Starting the engine .............................. 147
SOS button ............................................ 400
Spare tire Inflation pressure................................563
Storage location ................................. 527
Spark plug ............................................... 560
Specifications .........................................556
Speedometer........................................... 164
Steering wheel Adjustment...............................................80
Audio switches ..................................... 312
Manual adjustment ..............................80
Power adjustment ................................80
Steering wheel position memory.................................................. 69 Stop light
Replacing light bulbs ....................... 485
Wattage ................................................. 564
Storage feature ..................................... 367
Stuck If the vehicle becomes stuck ....... 552
Sun visors ................................................. 375
Sunshade Rear .......................................................... 382
Roof ............................................................. 90
Switch Driving mode selector switch ..................................................... 157
Engine switch ........................................ 147
Fog light switch .................................... 197
Ignition switch ....................................... 147
Light switches........................................186
Mode select switch ............................ 157
Power door lock switch.................... 58
Power switch ......................................... 147
Power window switch ........................87
Talk switch .................................318, 337
Telephone switch ...............................337
Tire pressure warning reset switch ................................................... 445
Window lock switch ............................87
Wiper and washer switch ...............198

621
Alphabetical index
Tail lightsReplacing light bulbs ....................... 485
Switch ........................................................186
Wattage ................................................. 564
Talk switch (vehicles without navigation system).................. 318, 337
Talk switch (vehicles with navigation system)*
Telephone switch (vehicles without navigation system) ............337
Telephone switch (vehicles with navigation system)*
Theft deterrent system Alarm ........................................................ 100
Immobilizer system ............................. 98
Theft prevention labels ........................103
TILT switch*
Tire inflation pressure........................... 451
Tire information Glossary ................................................ 574
Size ............................................................. 571
Tire identification number ............. 570
Uniform Tire Quality Grading ....572
Tires Chains ..................................................... 250
Checking ............................................... 443
Compact spare tire ...........................527
If you have a flat tire...........................527
Inflation pressure ................................. 451
Inflation pressure sensor................ 444
Information............................................568
Replacing................................................527 Rotating tires ........................................443
Size ........................................................... 563
Snow tires .............................................. 249
Spare tire ................................................ 527
Tire pressure warning
system ....................................... 443, 501
Tools ........................................................... 527
Total load capacity ...............................248
Towing Dinghy towing .....................................253
Emergency towing........................... 489
Trailer towing ....................................... 252
TRAC......................................................... 229
Traction control ..................................... 229
Trailer towing ......................................... 252
Trip meter ................................................. 164
Trunk Opener ........................................................61
Turn signal lights Replacing light bulbs ........................ 475
Switch.......................................................... 161
Wattage ................................................. 564
Vanity lights Vanity lights ..........................................376
Wattage ................................................. 564
Vanity mirrors ........................................ 376
Vehicle identification number .........556
Vehicle stability control...................... 229
Ventilators ............................................... 379
VIEW switch*
VSC............................................................ 229
*: Refer to “Navigation System Owner’s Manual”.
T
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