2007 Lexus GS450h warning lights

136
2-4. Using other driving systems
Example of follow-up cruising (when following a vehicle driving slower
than the set speed): When the speed is set at 62 mph (100 km/h) and
the vehicle ahead is driv ing at 50 mph (80 km/h)
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration (when ther e are no longer vehicles driving
slower than the set speed in the lane ahead): When the speed is set at
62 mph (100 km/h) and the vehicle ahead driving at 50 mph (80 km/
h) is out of the lane
When the vehicle ahead of you executes a lane change, the system slowly
accelerates until the set vehicle speed is reached. The system then returns to
fixed speed cruising.
■Dynamic radar cruise control warn ing lights, messages and buzzers
Warning lights, messages and buzzers are us ed to indicate a system malfunction or
to alert you to the need for caution while driving. ( P. 4 4 6 )
■The dynamic radar cruise can be set when
●The shift lever is in “D” or the “4”, “5” or “6” range of “S”.
●Vehicle speed is between approximately 27 mph (43 km/h) and 87 mph (139
km/h).
■Accelerating
The vehicle can be accelerated normally. After acceleration, the set speed
resumes.

170
2-4. Using other driving systems
■The pre-collision system is operational when
●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 oncoming vehicle exceeds 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
●Seat belts (linked to brake operation)
• Vehicle speed exceeds 9 mph (15 km/h).
• The system detects sudd en braking or skidding.
• The front occupants are wearing a seat belt.
●Brake Assist
• Vehicle speed is above 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming vehicle exceeds 18 mph (30 km/h).
• The brake pedal is depressed.
●AV S
• Vehicle speed is above 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncoming vehicle exceeds 18 mph (30 km/h).
■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 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 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. ( P. 439, 446)

340
3-7. Other interior features
Indicator and warning lightsOperation indicator light
If your subscription has expired,
the operation indicator light will go
off.
Warning light
If the warning light (red light)
comes on, have the vehicle
inspected by your Lexus dealer.
Airbag deployment notification
If an airbag deploys, an emergency ca ll is automatically placed to the Lexus
Link Call Center, and your vehicle’s location is identified. The Lexus Link
Advisor will attempt to contact you and assess the situation. The Advisor
can quickly contact the ne arest emergency services provider, describe the
situation and request that assistance be sent to your location.
The Lexus Link Advisor can, if requeste d, connect you to an emergency ser-
vices operator.
Emergency assistance
When you press the button, a priority call is placed to the Lexus Link
Call Center with your vehicle’s locati on. At the Call Center, the Lexus Link
Advisor can determine your vehicle’s lo cation, communicate with you, and,
if appropriate, contac t the nearest emergency service provider.
If you have accidentally pressed the button, tell the Lexus Link Advisor that you
are not experiencing an emergency.

438
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 vehicl e in a safe place and contact your Lexus
dealer.
*: Parking brake engaged warning buzzer:
 P. 4 5 0
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 (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
while the hybrid system is running.
Calmly perform the following actions if any of the warning lights turn on or
flash. If a light turns on or flashes, bu t then turns off, this does not necessar-
ily indicate a malfunction in the system.

442
5-2. Steps to take in an emergency
■SRS warning light
This warning light system monitors the following:
●The airbag sensor assembly
●Front airbag sensors
●The curtain shield airbag sensors
●The side and curtain shield airbag sensors
●The occupant detection sensor
●The front passenger occupant classification ECU
●“AIRBAG ON” and “AIRBAG OFF” indicator lights
●The pressure sensor
●The belt tension sensor
●The seat belt buckle switches
●The driver's seat position sensor
●The inflators
●The warning light
●The interconnecting wiring and power sources
■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 caus ed by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light.

5
When trouble arises
445
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. Failing 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
Malfunction in the automatic headlight leveling sys-
tem.
Malfunction in the rear lights system.
Malfunction in the tire pressure warning system.
The tire pressure warning light will blink for 1 minute
and then stay on.
(Flashing)
Malfunction in the steering lock system.

5
When trouble arises
477
5-2. Steps to take in an emergency
■To prevent 12 volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the 12 volt battery is removed or discharged
The hybrid system may not start. ( P. 3 8 0 )
Also, the following systems must be initialized.
●Po w e r w i n d o w s (P. 5 1 )
●Variable gear ratio steering (P. 1 5 3 )
●Tire pressure warning system (P. 3 8 5 )
●Intuitive parking assist (P. 1 5 3 )
Maintain the engine speed on th e second vehicle and turn the
power switch to the “IG-ON” mo de, then start the vehicle’s
hybrid system.
Make sure the “READY” light co mes on. If the light does not
come on, contact your Lexus dealer.
Once the vehicle’s hybrid system has started, remove the
jumper cables in the exact reverse order in which they were
connected.
Once the hybrid system starts, have the vehicle checked at your Lexus
dealer as soon as possible.STEP5
STEP6
STEP7

518
Alphabetical index
Alphabetical index
A/C (Air conditioning system) ........ 192
ABS (Anti-lock Brake System) ........ 164
Active stabilizer suspension 
system...................................................... 164
Air conditioning system (A/C) Air conditioning filter .......................399
Automatic air conditioning 
system .................................................... 192
Airbags Airbag operating conditions........... 69
Airbag precautions for your 
child...........................................................72
Airbag warning light ........................ 439
Curtain shield airbag 
precautions .......................................... 75
General airbag precautions ............72
Locations of airbags............................ 66
Modification and disposal of 
airbags .................................................... 76
Side airbag precautions .....................72
Side and curtain shield airbags 
operating conditions ....................... 69
SRS airbags ............................................. 66
Alarm ............................................................. 61
Antenna ....................................................209
Armrest .....................................................323
Ashtrays ..................................................... 316
Audio system Antenna ..................................................209
Cassette player..................................... 212
CD player/changer ........................... 216
DVD information ................................. 251
DVD player/changer...................... 232
DVD video/audio ............................. 235
MP3/WMA disc ............................... 224
Optimal use.......................................... 255
Radio ........................................................ 203 Steering switches .............................. 259
Video CD .............................................. 247
Automatic headlight leveling 
system ...................................................... 124
Automatic light control system......... 122
AVS (Adaptive Variable 
Suspension System) ...........................163
BA (Brake Assist)...................................164
Back-up lights Wattage ................................................. 494
Battery 12 volt battery .......................................379
Checking................................................379
Hybrid battery (Tra ction battery) .... 5
If the 12 volt battery is 
discharged .........................................476
Preparing and checking 
before winter...................................... 176
Bluetooth
®.............................................. 263
Brake Fluid .......................................................... 378
Parking brake............................................111
Care Exterior ................................................... 352
Interior..................................................... 354
Seat belts ............................................... 355
Cargo capacity........................................ 172
Cargo hooks .......................................... 327
CD player/changer............................. 232
Chains ......................................................... 177
Child-protectors...................................... 26
Child restraint system (CRS)
Definition ...................................................82
Installation ................................................ 85
A
B
C