2010 Lexus ES350 warning lights

177
2-4. Using other driving systems
2
When driving
ES350_U
■The pre-collision system is operational when
●Pre-collision seat belt (linked to the radar sensor)
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncomingvehicle exceeds 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Pre-collision seat belts (linked to brake operation)
• Vehicle speed is above 9 mph (15 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
●Pre-collision brake assist
• Vehicle speed is above 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle is greater than about 18 mph (30 km/h).
• The brake pedal is depressed.
■Conditions that may trigger the system even if there is no danger of collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When there is a metal plate in the road in front of the vehicle on a downhill slope
●When there is a metal object such as a sign board in front of the vehicle on an
uphill slope
●When driving on an uneven road surface
●When passing an oncoming vehicle on a left-turn
●When your vehicle rapidly closes on the vehicle in front
●When your vehicle is skidding with the VSC system off
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.
■When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. ( oP. 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:
oP. 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
■First check when the malfunction indicator 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
• Occupant detection 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
■Front passenger detection sensor and passenger seat belt reminder
If luggage or other load is placed on the front passenger seat, depending on its
weight, the reminder light may flash and buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch does not turn off the tire pressure warning light.
■The tire pressure warning light may turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light (after a few minutes).

456
5-2. Steps to take in an emergency
ES350_U
Warning messageDetailsCorrection procedure
(Flashing and then con-tinuously on)
(Flashing)
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
because the windshield
wipers are set at high
speed operation mode. A buzzer also sounds.
Turn them off or set them
to either the intermittent
or the slow mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode). A buzzer also sounds.
Slow the vehicle by apply-
ing the brakes.
Indicates one or more
stop lights are burned
out.Have the defective bulbs
replaced by your Lexus
dealer.

530
Alphabetical index
ES350_U
Cooling systemEngine overheating ......................... 480
Cornering assist sensors .................... 165
Cruise control Cruise control .......................................152
Dynamic radar crui se control ...... 155
Cup holders ............................................. 315
Curtain shield airbags............................85
Customizable features ..........................511
Daytime running light system ........... 146
Defogger Rear window........................................ 207
Side mirror ............................................ 207
Dimension ................................................486
Dinghy towing ......................................... 197
Display Dynamic radar crui se control ...... 155
Trip information ......................................141
Warning message............................. 449
Do-it-yourself maintenance .............366
Door courtesy lights Door courtesy lights........................ 308
Wattage.................................................. 495
Doors Door glasses ........................................... 68
Door lock.................................. 26, 38, 41
Side mirrors ............................................. 66
Driver's seat belt reminder light ...... 441
Driving Break-in tips ............................................. 117
Correct posture .................................... 83
Procedures .............................................. 116
Winter driving tips.............................. 184
Driving position memory ......................50 Electronic key
If the electronic key does not
operate properly.............................475
Emergency, in case of
If the electronic key does not operate properly.............................475
If the engine will not start ................. 471
If the shift lever cannot be shifted from P....................................473
If the vehicle has discharged
battery .................................................. 477
If the warning buzzer sounds...... 439
If the warning light turns on.......... 439
If the warning message is
displayed ............................................ 449
If you have a flat tire .......................... 461
If you lose your keys ......................... 474
If you think something is
wrong .................................................. 435
If your vehicle becomes stuck .... 483
If your vehicle needs to be towed ....................................................429
If your vehicle overheats................480
Emergency flashers
Switch...................................................... 428
Engine
Compartment ......................................373
Engine switch ........................................ 124
Hood ....................................................... 370
How to start the engine ................... 124
Identification number ...................... 487
If the engine will not start ................. 471
Ignition switch ....................................... 124
Overheating ........................................480
Engine compartment cover ............. 374
D
E

536
Alphabetical index
ES350_U
TiresChains ...................................................... 186
Checking ............................................... 387
If you have a flat tire............................461
Inflation pressure................................ 396
Inflation pressure sensor............... 388
Information............................................ 499
Replacing.................................................461
Rotating tires ........................................ 387
Size ........................................................... 493
Snow tires ............................................... 188
Spare tire..................................................461
Tools ............................................................ 461
Total load capacity ................................ 183
Towing Dinghy towing ....................................... 197
Emergency towing ........................... 429
Trailer towing........................................ 190
TRAC............................................................ 171
Traction control ........................................ 171
Trip meter ................................................. 134
Trunk Extending a space............................... 331
Opener ...................................................... 45
Trunk light Trunk light................................................. 46
Wattage.................................................. 495
Turn signal lights
Replacing light bulbs.......................... 417
Switch ..........................................................131
Wattage.................................................. 495 Vanity lights
Vanity lights............................................ 319
Wattage ................................................. 495
Vanity mirrors ..........................................319
Vehicle identification number ......... 487
Vehicle stability control ........................ 171
Ventilators ............................................... 326
Voice command switch ..................... 279
VSC .............................................................. 171
Warning buzzers Brake system....................................... 439
Downshifting.......................................... 130
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
Rear light failure warning light ...... 441
Seat belt reminder light .................... 441
SRS airbags.......................................... 440V
W

539
What to do if...
ES350_U
■Warning lights
The 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