2012 Lexus ES350 warning lights

189
2-4. Using other driving systems
2
When driving
ES350_U
●When climbing a steep hill causes an overhead billboard or other metallic struc-
ture to appear directly in the vehicle's line of travel.
●When an extreme change in vehicle height occurs
●When the axis of the radar is out of adjustment
●When passing through certain toll gates
When the system is activated in the situations described above there is also a possi-
bility that the seat belts will retract quickly and the brakes will be applied with a force
greater than normal. When the seat belt is locked in the retracted position, stop the
vehicle in a safe place, release the seat belt and refasten.
■Situations in which the pre-collision system does not function properly
The system may not function effectively in situations such as the following:
●On roads with sharp bends or uneven surfaces
●On slippery roads such as those covered with ice or snow
●If a vehicle suddenly moves in front of your vehicle, such as at an intersection
●If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
●In inclement weather such as heavy rain, fog, snow or sand storms
■Automatic cancelation of the pre-collision system
When a malfunction occurs due to sensor contamination, etc. that results in the
sensors being unable to detect obstacles, the pre-collision system will be automati-
cally disabled. In this case, the system will not activate even if there is a collision pos-
sibility.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( →P. 439, 449)

5
When trouble arises
439
ES350_U
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 vehicle in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:
→ P. 4 5 2
Warning lightWarning light/Details
(USA)
(Canada)
Brake system warning light (warning buzzer)*
Indicates the following;
• Low brake fluid
• Malfunction in the brake booster 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.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, but then turns off, this does not necessar-
ily indicate a malfunction in the system.

5
When trouble arises
443
5-2. Steps to take in an emergency
ES350_U
*1: Open door warning buzzer:
→P. 4 5 2
*2: Driver's and front passenger’s seat belt reminders:
The driver’s and front passenger’s seat belt reminder sounds to alert the
driver and front passenger that his or her sear belt is not fastened. The buzzer
sounds intermittently for 10 seconds after the vehicle has reached a speed of
at least 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer
will sound in a different tone for 20 more seconds.
■First check when the malfunction in dicator lamp comes on while driving
Check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your Lexus dealer as
soon as possible.
■SRS warning light
This warning light system monitors the following:
• The airbag sensor assembly
• The front airbag sensors
• The side and curtain shield airbag sensor assemblies
• The curtain shield airbag sensor assemblies
• The driver’s seat position sensor
• The driver’s seat belt buckle switch
• Front passenger occupant classification system (ECU and sensors)
• “AIR BAG ON” and “AIR BAG OFF” indicator lights
• Front passenger’s seat belt buckle switch
• The seat belt pretensioner assemblies
•The inflators
• The interconnecting wiring and power sources

541
Alphabetical index
ES350_U
Daytime running light system............ 152
DefoggerRear window.......................................... 213
Side mirror .............................................. 213
Dimension ............................................... 486
Dinghy towing ....................................... 203
Display Dynamic radar cruise control ....... 164
Trip information .................................... 145
Warning message ............................ 449
Do-it-yourself maintenance............. 370
Door courtesy lights Door courtesy lights .......................... 312
Wattage ................................................. 495
Doors Door lock ................................28, 40, 42
Door windows ....................................... 70
Side mirrors............................................. 68
Driver's seat belt reminder light ...... 441
Driving Break-in tips ............................................. 121
Correct posture .................................... 86
Procedures ............................................. 120
Winter driving tips .............................. 196
Driving position memory ....................... 51 Electronic key
If the electronic key does not
operate properly ............................ 474
Emergency, in case of
If a warning message is displayed.............................................449
If the electronic key does not operate properly ............................ 474
If the engine will not start................470
If the shift lever cannot be shifted from P ................................... 472
If the vehicle battery is
discharged ......................................... 477
If the warning buzzer sounds ......439
If the warning light turns on...........439
If you have a flat tire .......................... 461
If you lose your keys ......................... 473
If you think something is
wrong ................................................... 437
If your vehicle becomes stuck .... 483
If your vehicle has to be stopped in an emergency ......... 484
If your vehicle needs to be towed..................................................... 431
If your vehicle overheats ............... 480DE

548
Alphabetical index
ES350_U
USB port* .................................... 238, 245
Vanity lightsVanity lights .......................................... 323
Wattage.................................................. 495
Vanity mirrors ........................................323
Vehicle identification number .........487
Vehicle stability control....................... 182
Ventilators .............................................. 330
Voice command switch* ...................284
VSC ............................................................. 182 Warning buzzers
Brake system....................................... 439
Downshifting.......................................... 134
Open door ............................................ 441
Seat belt reminder .............................. 441
Warning lights
Anti-lock brake system .................. 440
Brake assist system .......................... 440
Brake system....................................... 439
Charging system ............................... 440
Low fuel level......................................... 441
Low tire pressure warning light.......................................................... 441
Malfunction indicator lamp .......... 440
Master warning light.......................... 441
Open door ............................................. 441
Pre-collision system......................... 440
Pretensioners ...................................... 440
Seat belt reminder light .................... 441
SRS airbags.......................................... 440U
V
W

551
What to do if...
ES350_U
■Warning lights
A warning light or indicator
light comes onP. 4 3 9If a warning light turns on or a warning
buzzer sounds...
or or
P. 4 3 9P. 440
P. 4 4 1
or
P. 440
or
P. 4 4 1P. 4 4 1
P. 440P. 4 4 1
P. 4 4 1P. 440
P. 440P. 4 4 1
Brake system warning lightMalfunction indicator lamp
ABS warning lightDriver’s seat belt
reminder light
Front passenger’s seat belt
reminder light
Low fuel level warning light
SRS warning lightMaster warning light
Open door warning lightPre-collision system warn-
ing light
Charging system warning
lightTire pressure warning light