2008 Lexus GS450h warning light

When driving2
127
GS_HV_U
December 12, 2007 3:33 pm
2-1. Driving procedures ........ 128Driving the vehicle.................. 128
Power (ignition) switch .......... 138
Transmission.............................. 142
Turn signal lever ....................... 146
Parking brake ........................... 147
2-2. Instrument cluster ......... 148 Gauges and meters ................ 148
Indicators and warning 
lights ......................................... 152
Multi-information display ..... 155 2-3. Operating the lights and

windshield wipers ........ 158
Headlight switch ..................... 158
Fog light switch .......................... 161
Windshield wipers and 
washer ...................................... 162
Headlight cleaner switch ..... 165
2-4. Using other driving 
systems .......................... 166
Cruise control.......................... 166
Dynamic radar cruise 
control ...................................... 169
Intuitive parking assist ........... 180
Rear view monitor 
system...................................... 195
AVS (Adaptive Variable 
Suspension System) ............ 199
Driving assist systems ........... 200
PCS (Pre-Collision 
System) .................................. 206
2-5. Driving information........ 210 Cargo and luggage ................ 210
Vehicle load limits ................... 214
Winter driving tips .................. 215
Trailer towing .......................... 220
Dinghy towing.......................... 221

152
2-2. Instrument cluster
GS_HV_U
December 12, 2007 3:50 pm
Indicators and warning lights
The indicator and warning lights on the instrument cluster and center
panel inform the driver of the status of the vehicle’s various systems.
Instrument cluster
The units used on the speedometer and some indicators may differ depend-
ing on the target region.
Center panel

154
2-2. Instrument cluster
GS_HV_U
December 12, 2007 3:50 pm
CAUTION
■If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light not
come on when you turn to ON mode, this could mean that these systems are not
available to help protect you in an accident, which could result in death or serious
injury. Have the vehicle inspected by your Lexus dealer immediately if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems. ( P. 4 9 1 )
*: These lights turn on when the “POWER” switch is turned to ON mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is on, or af ter a few seconds. There may be a mal-
function in a system if the lights do not come on, or turn off. Have the
vehicle inspected by your Lexus dealer.
(U.S.A.)(Canada)(U.S.A.)(Canada)
(U.S.A.)(Canada)(if equipped)
*******
*****
*

173
2-4. Using other driving systems
2
When driving
GS_HV_U
January 4, 2008 10:02 am
Example of follow-up cruising 
When following a vehicle driving slower than the set speed
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 there are no longer vehicles driving slower than the set speed in
the lane ahead
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.
Approach warning
When your vehicle is too close to a vehicle ahead, and sufficient auto-
matic deceleration via the cruise cont rol is not possible, the display will
flash and buzzer will sound to alert th e driver. An example of this would
be if another driver cuts in front of you while you are following a vehicle.
Apply the brakes to ensure an appr opriate vehicle-to-vehicle distance.
■Warning lights and messages 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. 5 0 2 )
■Switching modes
The mode cannot be switched to constant speed control mode if vehicle-to-vehicle
distance control mode has been used. The mode also cannot be switched from
constant speed control to vehicle-to-vehic le control mode. Turn the system off by
pressing the “ON-OFF” button, and turn it on again.

205
2-4. Using other driving systems
2
When driving
GS_HV_U
January 4, 2008 10:02 am
CAUTION
■The hill-start assist control may not operate effectively when
●On steep inclines.
●On icy surfaces.
■When the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Ex ercise particular care when the indica-
tor light flashes and a buzzer sounds.
■When TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are systems to ensure vehicle stability and driving force, do not turn off TRAC
and VSC unless necessary.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the ti res are inflated to the specified tire pres-
sure level.
The ABS and VSC will not function correctly if different tires are fitted on the vehi-
cle. 
Contact your Lexus dealer for further info rmation when replacing tires or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.

208
2-4. Using other driving systems
GS_HV_U
January 4, 2008 10:02 am
■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. 492, 502)

381
3-7. Other interior features
3
Interior features
GS_HV_U
December 13, 2007 10:51 am
Operating the HomeLink
Press the appropriate HomeLink button. The HomeLink indicator
light on the HomeLink transceiver should turn on.
The HomeLink continues to send a signal for up to 20 seconds as long as
the button is pressed.
Erasing the entire HomeLink memory (all three programs)
Press and hold the 2 outside but-
tons for 20 seconds until the indi-
cator light flashes.
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink
 memory.
■Before programming
●Install a new battery in the transmitter.
●The battery side of the transmitter must be pointed away from the HomeLink.
■Certification for the garage door opener
This device complies with Part 15 of the FCC Rules and with RSS-210 of the IC
Rules. 
Operation is subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
WARNING: This transmitter has been tested and complies with FCC and IC rules.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the device.

389
3-7. Other interior features
3
Interior features
GS_HV_U
December 13, 2007 10:51 am
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.