2011 Lexus HS250h warning lights

216
2-4. Using other driving systems
■Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances shown correspond
to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle distance increases/
decreases in accordance with vehicle speed.
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
■Warning lights, messages and buzzers for dynamic radar cruise control
Warning lights, messages and buzzers are us ed to indicate a system malfunction or
to inform the driver of the need for caution while driving. ( P. 499, 508, 511)
■Approach warning
In the following instances, there is a po ssibility that the warnings will not occur:
●When the speed of the vehicle ahead ma tches or exceeds your vehicle speed
●When the vehicle ahead is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●At the instant the accelerator is applied
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 f t. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 f t. (30 m)
Grille cover
Radar sensor

225
2-4. Using other driving systems
2
When driving
●When the lane lines cannot be recognized while driving.
●The wiper switch is set on “LO” or “HI” mode or is set on “AUTO” mode with
wipers operating at low or high speed.
●The no-handed driving warning activates while the lane keeping assist function
is active. (The buzzer will beep twice.)
●When the lane departure warning function is activated.
Once the lane departure warning function is activated, it will be temporarily
canceled and resume a few seconds later.
■No-handed driving warning
If the steering wheel is not operated for about 15 seconds on a straight road or
about 5 seconds on a curve, the buzzer will beep twice, indicators on the multi-
information display will flash, and the lane keeping assist function will be temporarily
canceled. If you drive the vehicle with your hands lightly touching the steering
wheel, this may also be detected as no-handed driving.
■When the vehicle has been parked in the sun
The LKA system functions may not be available for a while after driving has started.
In such cases, turn the LKA system off and turn it on again after normal temperature
returns. When the temperature in the cab in decreases and the temperature around
the camera sensor becomes suitable for it s operation, the functions will begin to
operate.
■Warning lights and messages for LKA
Warning lights and messages are used to in dicate a system malfunction or to inform
the driver of the need for caution while driving. ( P. 4 9 9 , 5 1 1 )

469
4-3. Do-it-yourself maintenance
4
Maintenance and care
3IGN10 A
Electronically controlled brake sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, Lexus link system, smart access
system with push-button start, stop
lights
4MET7. 5 AMeters
5WIP30 AWindshield wipers
6WA S H E R15 AWindshield washer
7A/C10 AAir conditioning system
8GAUGE10 AAFS, turn signal lights, emergency
flasher lights
9AFS10 AAdaptive front-lighting system
10ECU-IG NO.210 A
Pre-collision system, LKA, dynamic
radar cruise control, air conditioning
system, outside rear view mirror,
HUD, navigation system, tire inflation
pressure warning system
FuseAmpereCircuit

498
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehi cle in a safe place and contact your Lexus
dealer.
*: Brake system warning buzzer
When there is a possible problem that could affect braking performance, the
warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer
 P. 5 1 1
Stop the vehicle immediately.
The following warning indicates the po ssibility of damage to the vehicle
that may lead to an ac cident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light and warning buzzer*
•Low brake fluid
• Malfunction in the brake system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released the system is operating normally.
Warning lightWarning light/Details
Charging system warning lightIndicates a malfunction in the vehicle’s charging system
Calmly perform the following actions if any of the warning lights comes on
or flashes. If a light comes on or flashes, but then goes off, this does not nec-
essarily indicate a malfunction in the system. However, if this continues to
occur, have the vehicle inspected by your Lexus dealer.

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

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
V

622
Alphabetical index
Warning buzzersBrake system .......................................498
Open door ........................................... 501
Seat belt reminder.............................. 501
Warning lights AFS OFF................................................ 499
Anti-lock brake system................... 499
Brake assist system........................... 499
Brake system .......................................498
Charging system ...............................498
Cruise control ..................................... 499
Electric power steering warning light ..................................... 499
Electronic engine control system .................................................. 499
High coolant temperature ............498
Hybrid battery system ..................... 499
LKA........................................................... 499
Low fuel level ........................................ 501
Low tire pressure................................ 501
Malfunction indicator lamp........... 499
Master warning light ......................... 501
Open door ............................................ 501
Pre-collision system ......................... 499
Pretensioner ......................................... 499
Radar cruise control......................... 499
Seat belt reminder light ................... 501
Slip indicator ........................................ 499
SRS airbags .......................................... 499
Tire pressure warning light ............ 501 Warning messages
Cruise control .....................................508
Dynamic radar cruise control ........................................508, 511
Electric power steering system..................................................508
Engine oil maintenance......................511
Engine oil pressure........................... 507
EV drive mode .......................................511
Headlight ...............................................508
Hood ...........................................................511
Hybrid system..................................... 507
Intuitive parking assist ............508, 511
Key .............................................................. 519
Lane-Keeping Assist ...........................511
Moon roof.................................................511
Open door ...............................................511
Parking brake..........................................511
Pre-collision system................508, 511
Smart access system with push start.............................................. 519
Tire pressure warning system......................................................511
Trunk............................................................511
Washer fluid ............................................511
Washer Checking............................................... 438
Preparing and checking before winter.....................................249
Switch ........................................................198
Washing and waxing...........................408W

626
What to do if...
■Warning lights
*: The light flashes to indicate a malfunction.
P. 5 0 0
or
P. 4 9 8P. 5 0 0
P. 4 9 8P. 5 0 0
P. 4 9 9P. 5 0 0
P. 4 9 9P. 5 0 0
P. 5 0 1
or
P. 4 9 9P. 5 0 1
P. 4 9 9P. 5 0 1
P. 5 0 1
or
P. 4 9 9P. 5 0 1
P. 5 0 0P. 5 0 2
P. 5 0 0P. 5 0 0
Brake system warning light“AFS OFF” indicator light*
Slip indicator light
Charging system warning
light“LKA” indicator light*
High engine coolant temperature
warning lightCruise control indicator
light*
Brake system warning lightRadar cruise control
indicator light*
Malfunction indicator lampOpen door warning light
Low fuel level warning light
SRS warning lightDriver’s seat belt reminder
light
“ABS” warning lightFront passenger’s seat belt
reminder light
Master warning light
Electric power steering system
warning lightTire pressure warning light
Pre-collision system warning
light*Automatic High Beam
Indicator light*