2010 Lexus GS350 overheating

132
2-1. Driving procedures
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
CAUTION
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, you may accidentally move the shift lever or
depress the accelerator pedal, which could cause an accident or fire due to engine
overheating. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust
gases may collect and enter the vehicle, leading to death or a serious health hazard.
■When braking the vehicle
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and may cause one side of
the vehicle to brake differently than the other side. Also the parking brake may
not securely hold the vehicle.
●If the brake actuator (GS460) or brake booster (GS350) does not operate, do
not follow other vehicles closely and avoid downhill or sharp turns that require
making.
In this case, braking is still possible, but it will require more force on the pedal than
usual. Braking distance may also increase.
●Do not pump the brake pedal if turning the engine off.
Each push on the brake pedal uses up the reserve for the power-assisted brakes.
●The brake system consists of 3 (GS460) or 2 (GS350) individual hydraulic sys-
tems: If one of the systems fails, the other will still operate. In this case, the brake
pedal should be depressed more firmly than usual and braking distance becomes
longer.
Do not drive your vehicle with only a single brake system. Have your brakes fixed
immediately.
■If the vehicle becomes stuck or bogged (4WD models)
Do not spin the wheels recklessly when any of the tires is up in the air, or stuck in
sand or mud, etc. This may damage the drive system components or propel the
vehicle forward (or in another direction) and cause an accident.
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150
2-2. Instrument cluster
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
NOTICE
■To prevent damage to the engine and its components
●The engine may be overheating if the engine coolant temperature gauge is in the
red zone (“H”). In this case, immediately stop the vehicle in a safe place. Check
the engine after it has cooled completely. (→P. 5 7 8 )
●Do not let the indicator needle of the ta chometer enter the red zone, which indi-
cates the maximum engine speed.
■To activate the light sensitivity function properly
Do not affix a sticker or window tint to the rear window glass, or put an object
behind the rear seat.
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205
2-4. Using other driving systems
2
When driving
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
■Reduced effectiveness of EPS
The effectiveness of EPS is reduced to prevent the system from overheating when
there is frequent steering input over an extended period of time. The steering wheel
may feel heavy as a result. Should this occur, refrain from excessive steering input or
stop the vehicle and turn the engine off. The system should return to normal about
10 minutes.
■GS460: VGRS is disabled in the following situations
●During stopping or the steering wheel has been moved for a long time while
driving at lower speeds.
●After the engine is restarted at less than -22°F (-30°C).
CAUTION
Any of the following conditions may result in an accident which could cause death or
serious injury:
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded.
●The vehicle hydroplanes while driving at high speed on a wet or slick road.
■Stopping distance when the ABS is operating will exceed that of normal condi-
tions
The ABS is not designed to shorten the vehicle’s stopping distance. Always main-
tain a safe distance from the vehicle in front of you in the following situations.
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or roads with uneven roads
■TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
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401
3-7. Other interior features
3
Interior features
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat heater on
to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs,cold remedies, etc.)
●Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature of the
seat and may lead to overheating.
●Do not use seat heater more than necessary.
Doing so may cause minor burns or overheating.
NOTICE
■To prevent damage to the seat heaters/ventilators
Do not put heavy objects on the seat and do not stick sharp objects (needles, nails,
etc.) into the seat.
■To prevent 12 volt battery discharge
Turn the switches off when the engine is off.
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5
When trouble arises
579
5-2. Steps to take in an emergency
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
■Overheating
In the following situations, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot, causing serious
injury such as burns.
●Keep hands and clothing away from the fan and engine drive belt while the
engine is running.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
Add coolant if necessary.
Water can be used in an emer-
gency measure if coolant is
unavailable. (→P. 5 9 4 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6
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633
Alphabetical index
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
Back-up lightsWattage ................................................ 600
Battery 12 volt battery ...................................... 459
Checking ............................................... 459
If the 12 volt battery is
discharged ........................................ 574
Preparing and checking
before winter...................................... 219
Bluetooth
® audio ................................. 308
Bluetooth
® phone ............................... 332
Brake
Fluid .......................................................... 457
Parking brake ........................................ 145
Brake assist ............................................. 200
Care Exterior ................................................... 430
Interior..................................................... 433
Seat belts ............................................... 434
Cargo capacity ....................................... 214
Cargo hooks .......................................... 408
CD player/changer .............................269
Chains....................................................... 220
Child-protectors ......................................44
Child restraint system Definition................................................... 110
Installation.................................................. 114
Installing CRS with lower anchors ...................................................115
Installing CRS with seatbelts ........... 117
Installing CRS with top straps ......... 121 Child safety
Airbag precautions ............................100
Battery precautions ............. 460, 577
Child restraint system ......................... 110
Child-protectors ................................... 44
How your child should wear
the seatbelt............................................66
Installing child restraints..................... 114
Moon roof precautions....................... 81
Power window lock switch .............. 75
Power window precautions ............ 75
Removed electronic key battery
precautions....................................... 483
Seat belt comfort guide ..................... 64
Seat belt precautions .......................... 67
Seat heater precautions.................. 401
Trunk precautions................................ 50
Cigarette lighter................................... 398
Cleaning Exterior................................................... 430
Interior .....................................................433
Seat belts ................................................434
Clock .........................................................395
Coin holder .............................................390
Compass ....................................................417
Condenser .............................................. 457
Console box .......................................... 388
Cooling system Engine overheating.......................... 578
Cruise control
Cruise control........................................167
Dynamic radar cruise control......... 171
Cup holders ............................................. 391
Curtain shield airbags............................ 93
Customizable features ........................ 618
B
C
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634
Alphabetical index
GS_G_U (OM30C80U)
February 1, 2010 9:58 am
Daytime running light system ........... 158
DefoggerRear window........................................255
Side mirror ............................................255
Dimension ............................................... 586
Dinghy towing ........................................ 225
Display Multi-information display.................154
Touch screen ....................................... 228
Trip information ................................... 155
Warning message............................. 543
Do-it-yourself maintenance ............. 442
Door courtesy lights ............................382
Door pocket............................................392
Doors Door lock...................................29, 41, 43
Rear door child protector ................ 44
Driver’s seat belt reminder light .....536
Driver’s seat position memory ...........55
Driving
Correct posture ...................................... 91
Procedures ............................................. 126
DVD player/changer......................... 280
Electric power steering ..................... 200
Electronic key If the electronic key does not operate properly ...................... 571
Replacing battery .............................. 482 Emergency, in case of
If a warning light turns on .............. 534
If a warning message is displayed ............................................ 543
If the electronic key does not operate properly ..................... 571
If the engine will not start .......................................................568
If the shift lever cannot be shifted from “P” ............................... 569
If the 12 volt battery is discharged ........................................574
If you have a flat tire ........... 556, 566
If you lose your keys ........................ 570
If you think something is wrong .................................................. 530
If your vehicle becomes stuck ......581
If your vehicle has to be stopped in an emergency ............................ 583
If your vehicle needs to be
towed ................................................... 520
If your vehicle overheats................ 578
Engine ACCESSORY mode....................... 136
Compartment ..................................... 448
Engine (ignition) switch.................... 135
Hood ....................................................... 445
How to start the engine ................... 135
If the engine will not start ...............568
Overheating ........................................ 578
Engine compartment cover ............. 450
Engine coolant temperature gauge ....................................................... 147D
E
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637
Alphabetical index
GS_G_U (OM30C80U)
January 27, 2010 4:47 pm
Noise from under the vehicle ..............18
Odometer ................................................. 147
OilEngine oil .................................................451
Opener
Fuel filler door ........................................ 82
Hood ....................................................... 445
Trunk........................................................... 48
Outer foot lights ................................... 382
Outside rear view mirrors Adjusting and folding .......................... 73
Mirror position memory ................... 55
Outside temperature
display .......................................... 156, 396
Overhead console .............................. 389
Overheating, Engine .......................... 578
Parking brake .......................................... 145
Parking lights
Replacing light bulbs ......................... 512
Switch ........................................................ 157
Wattage ................................................ 600
Personal lights ....................................... 384
Portable music player ........................ 328
Power outlet ........................................... 399
Power windows.........................................75
Pre-collision system .............................207 Radar cruise control ............................... 171
Radiator .................................................... 457
Radio .......................................................... 260
Radio data system ................................ 262
Rear sunshade .......................................403
Rear turn signal lights
Replacing light bulbs ......................... 512
Wattage................................................. 600
Rear view monitor system.................. 196
Rear window defogger ......................255
Replacing Electronic key battery ......................482
Fuses........................................................ 484
Light bulbs .............................................. 512
Reporting safety defects for U.S. owners .......................................... 626
Safety Connect....................................... 421
Seat belts Adjusting the seat belt ........................ 63
Automatic locking retractor ............66
Child restraint system
installation.............................................. 114
Cleaning and maintaining
the seat belts .....................................434
Emergency locking retractor..........66
How to wear your seat belt ............. 63
How your child should wear
the seat belt ..........................................66
Pre-collision seat belts .......................65
Pregnant women, proper seat belt use .........................66
Reminder light .................................... 536
Seat belt extenders .............................. 67
Seat belt pretensioners ......................65N
O
P
R
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GS_U_G.book Page 637 Wednesday, January 27, 2010 4:48 PM