2015 Lexus GS300h warning lights

97
2Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
2. Instrument clusterWarning lights and indicators .............................. 98
Gauges and meters ................... 104
Multi-information display ........... 111
Head-up display ............................ 119
Energy monitor/ consumption screen ................126

982. Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
Warning lights and indicators
XExcept F SPORT models
XF SPORT models
The units used on the speedometer may differ depending on the target region.
The warning lights and indicators on the instrument cluster, center panel and
outside rear view mirrors inform the driver of the status of the vehicle’s vari-
ous systems.
For the purpose of explanation, the following illustration displays all warning
lights and indicators illuminated.

992. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
Warning lights inform the driver of malfunctions in the indicated vehicle’s sys-
tems.
Wa r n i n g l i g h t s
*1
Brake system warning light
(→ P. 4 76 )
*2, 3
(If equipped)
“AFS OFF” indicator
(→ P. 4 7 8 )
*2, 4Charging system warning
light ( →P. 4 76 )*1, 3Brake hold operated
indicator ( →P. 4 7 8 )
*2Malfunction indicator
lamp ( →P. 4 76 )*3Parking brake indicator
(→ P. 4 7 8 )
*2SRS warning light
(→ P. 4 76 )*1Brake system warning light
(→ P. 4 7 8 )
*1ABS warning light
(→ P. 477)Low fuel level warning light
(→ P. 4 7 8 )
*2Electric power steering
system warning light
(→ P. 477)Seat belt reminder light
(→ P. 4 7 8 )
*2, 3
(If equipped)
PCS (Pre-Crash Safety
system) warning light
(→ P. 477)*2
Master warning light
(→ P. 4 7 8 )
*1
Slip indicator ( →P. 477)
*2
(If equipped)
Tire pressure warning light
(→ P. 4 7 9 )

1032. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F00E_(EE)
*1: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
*2: These lights turn on when the power switch is turned to ON mode to indicate that asystem check is being performed. They will turn off after the “READY” indicator turns
on. There may be a malfunction in a system if a light does not come on, or turn off.
Have the vehicle inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
*3: 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
after a few seconds. There may be a malfunction in a system if the lights do not come
on, or turn off. Have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
*4: This light illuminates on the Center panel.
*5: The light flashes to indicate that the system is operating.
*6: When the outside temperature is approximately 3 °C (37 °F) or lower, the indicator
will flash for approximately 10 seconds, then stay on.
*7: The light turns on when the system is turned off.
*8: In order to confirm operation, the BSM outside rear view mirror indicators illuminate in the following situations:
• When the power switch is in ON mode, the BSM function is enabled on of the multi-information display.
• When the BSM function is enabled on of the multi-information display, the power switch is turned to ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indicators will
turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not turn off,
there may be a malfunction with the system.
If this occurs, have the vehicle inspected by any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
*9: This light illuminates on the outside rear view mirrors.
WA R N I N G
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not come on when
you start the hybrid system, 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 vehi-
cle inspected by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately if this occurs.

2324-2. Driving procedures
GS450h_300h_OM_OM30F00E_(EE)
■Parking brake operation
●When the power switch is not in ON mode, the parking brake cannot be released using
the parking brake switch.
●When the power switch is not in ON mode, automatic mode (automatic brake setting
and releasing) is not available.
●If the parking brake is operated repeatedly over a short period of time, the system may
restrict operation to prevent overheating. If this happens, refrain from operating the
parking brake. Normal operation will return after about 1 minute.
●Vehicles with towing package: In situations such as when parking while towing a trailer,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
●Vehicles without towing package: In situations such as when parking on a steep slope*,
the maximum amount of braking force can be used by pressing the parking brake
switch with the parking brake already set.
*: Use wheel chocks when parking on a steep slope.
■Parking brake operation sound
When the parking brake operates, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the power switch mode, the parking brake indicator light will come on
and stay on as described below:
ON mode: Comes on until the parking brake is released.
Not in ON mode: Stays on for approximately 15 seconds.
●When the power switch is turned off with the parking brake set, the parking brake indi-
cator light will stay on for about 15 seco nds. This does not indicate a malfunction.
■When there is a malfunction in the system
Warning lights and/or warning message will turn on or flash. (→P. 4 7 8 , 4 8 2 )
Depending on the condition, the park ing brake indicator light may flash.
■Parking brake engaged warning buzzer
→P. 4 8 8
■Usage in winter time
→P. 3 5 4

2444-3. Operating the lights and wipers
GS450h_300h_OM_OM30F00E_(EE)
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, vehicles ahead or other parties. In these
cases, manually switch between the high and low beams.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or have are not aimed properly.
• The vehicle is hit by water, snow, dust, etc. from a preceding vehicle.
• When driving through an area of intermittently changing brightness and darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved roads, gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in an abnor- mal manner.
• The driver believes that the high beam may be causing problems or distress to other
drivers or pedestrians nearby.
■Warning message
Warning messages are used to indicate a system malfunction or to inform the driver
of the need for caution. ( →P. 4 8 2 )
■Customization
Some functions can be customized. ( →P. 5 8 1 )

2484-3. Operating the lights and wipers
GS450h_300h_OM_OM30F00E_(EE)
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, vehicles ahead or other parties. In these
cases, manually switch between the high and low beams.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or have are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved roads, gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in an abnor-
mal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.
• When going through the Straits of Dover.
■Warning message
Warning messages are used to indicate a system malfunction or to inform the driver of
the need for caution. ( →P. 4 8 2 )

2884-5. Using the driving support systems
GS450h_300h_OM_OM30F00E_(EE)
■Hands off steering wheel alert
When the system determines that the driver has removed their hands from the steering
wheel while the lane departure control function or lane centering function is operating, a
warning message is displayed on the multi-information display.
If the driver continues to keep their hands off of the steering wheel, the buzzer sounds, a
warning message is displayed and the function is temporarily canceled. This alert also
operates in the same way when the vehicle is driven with the steering wheel lightly
gripped. However, depending on the road conditions, etc., the function may not cancel.
■White (yellow) lines are only on one side of road
The LKA system will not operate for the side on which white (yellow) lines could not be
recognized.
■Conditions in which functi ons may not operate properly
In the following situations, the camera sensor may not detect white (yellow) lines and var-
ious functions may not operate normally.
●There are shadows on the road that run parallel with, or cover, the white (yellow) lines.
●The vehicle is driven in an area without white (yellow) lines, such as in front of a tollgate
or checkpoint, or at an intersection, etc.
●The white (yellow) lines are cracked, “Raised pavement marker” or stones are present.
●The white (yellow) lines cannot be seen or are difficult to see due to sand, etc.
●The vehicle is driven on a road surface that is wet due to rain, puddles, etc.
●The traffic lines are yellow (which may be more difficult to recognize than lines that are
white).
●The white (yellow) lines cross over a curb, etc.
●The vehicle is driven on a bright surface, such as concrete.
●The vehicle is driven on a surface that is bright due to reflected light, etc.
●The vehicle is driven in an area where the brightness changes suddenly, such as at the
entrances and exits of tunnels, etc.
●Light from the headlights of an oncoming vehicle, the sun, etc., enters the camera.
●The vehicle is driven where the road diverges, merges, etc.
●The vehicle is driven on a slope.
●The vehicle is driven on a road which t ilts left or right, or a winding road.
●The vehicle is driven on an unpaved or rough road.
●The vehicle is driven around a sharp curve.
●The traffic lane is excessively narrow or wide.
●The vehicle is extremely tilted due to carrying heavy luggage or having improper tire
pressure.
●The distance to the preceding vehicle is extremely short.
●The vehicle is moving up and down a large am ount due to road conditions during driv-
ing (poor roads or road seams).
●The headlight lenses are dirty and emit a faint amount of light at night, or the beam axis
has deviated.
●The vehicle is struck by a crosswind.
●The vehicle has just changed lanes or crossed an intersection.
●Snow tires, etc., are equipped.