2015 Lexus GS450h warning light

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GS450h_QG_OM30F72U_(U)
OverviewInstrument Panel
Windshield wiper and washer switch P.33
Multi-information display P.28
Headlight switch Turn signal lever
Fog light switch
*
P.31
P.25
Inside lock buttons*
Trunk opener*
Hood lock release lever*
Driving position memoryswitches
P.19
See P.8
See P.7
Window lock switch*
Outside rear view mirror switches
*
Power window switches*
Door lock switches*
PCS OFF switch*
Tire pressure warning reset switch P.53
AFS OFF switch P.32

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GS450h_QG_OM30F72U_(U)
■Charging the hybrid ba ttery (traction battery)
If the shift lever is in N, the hybrid battery (t raction battery) will not be charged. Always put
the shift lever in P when the vehicle is stoppe d. When driving in heavy traffic, operate the
vehicle with the shift lever in D or S to avoid discharging the battery.
■ Regenerative braking
In the following situations, kinetic energy is converted to electric energy and deceleration
force can be obtained in conjunction with the recharging of the hybrid battery (traction bat-
tery).
● The accelerator pedal is released while driving with the shift position in D or S.
● The brake pedal is depressed while driving with the shift position in D or S.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to move. For
safety, apply the parking brake and make sure to shift the shift position to P when parked.
The following sounds or vibrations may occur when the hybrid system is operating and are
not a malfunction:
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
● Sounds from the hybrid system may be heard when the trunk lid is open.
● Sounds may be heard from the hybrid transm ission when the hybrid system starts or
stops.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when the brake pedal is depressed.
● Vibration may be felt when the ga soline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.
■Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started, refuel the
vehicle with at least enough gasoline to make the low fuel level warning light go off. If there is
only a small amount of fuel, the hybrid syst em may not be able to start. (The minimum
amount of fuel to add to make the low fuel level warning light go out is about 2.6 gal. [10.0 L,
2.2 Imp.gal.], when the vehicle is on a level surface. This value may vary when the vehicle is
on a slope.)

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GS450h_QG_OM30F72U_(U)
■Side display (if equipped)
Vehicle information can be displayed on the side display
●Fuel consumption
● Pa s t re c o rd
● Trip information
● Energy monitor
The image is an example only, and may vary slightly from actual conditions.
■ Hybrid warning message
A message is automatically displayed when a ma lfunction occurs in the hybrid system or an
improper operation is attempted.
If a warning message is shown on the multi-
information display, read the message and
follow the instructions.

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LKA (Lane-Keeping Assist) (if equipped)
Lane departure warning function
If the system judges that the vehicle may deviate from its lane, it alerts the driver using
beeping, screen displays and a sensory warning
* given via the steering wheel.
*: A slight steering torque is applied for a short period of time in the direction of thecenter of the lane.
Lane keeping assist function
• This function will be active when the vehicl e-to-vehicle distance control mode of the
cruise control is set with vehicle speed above approximately 45 mph (72 km/h) and
while the lane departure wa rning function is active.
• When the lane keeping assist function is acti ve, a slight steering torque will be applied,
to help the driver maintain the vehicle inside the lane.
While driving on a freeway or motor highway that has lane markers and no sharp curves,
the system recognizes the lanes using a came ra located above the inside rear view mir-
ror as a sensor to assist the driver with st aying in the lane. The LKA system has two func-
tions.
1
2

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GS450h_QG_OM30F72U_(U)
Tire Pressure Warning System
■The tire inflation pressure display function (if equipped)
The tire pressure detected by the tire pres-
sure warning system can be displayed on
the multi-information display.
■Initializing the tire pressure warning system
Press and hold the tire pressure warning
reset switch until the tire pressure warning
light blinks slowly 3 times.
Your vehicle is equipped with a tire pressure warning system that uses tire pressure warn-
ing valves and transmitters to detect low tire inflation pressure before serious problems
arise.

What to do if...
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GS450h_QG_OM30F72U_(U)
List of Warning/Indicator Lights
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
(U.S.A.)
Brake system warning light
(Canada)
Stop the vehicle immediately.
Charging system warning light
Have the vehicle inspected immediately.
(U.S.A.)
Malfunction
indicator lamp
Slip indicator
(Canada)
(Flashes)
“AFS OFF” indicator
(if equipped)
SRS warning light
(Flashes)
Brake hold operated indicator
(U.S.A.)
ABS warning light(Flashes)(U.S.A.)
Parking brake
indicator
(Canada)
(Flashes)
(Canada)
Electric power steering
system warning lightBrake system warning light
(Flashes)
“PCS” warning light
(if equipped)
(Blinking and then
continu-
ously on)
Tire pressure warning light
For further information, refer to the OWNER’S MANUAL.

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What to do if...
GS450h_QG_OM30F72U_(U)
*: It also comes on due to natural causes such as natural air leaks and tire inflation pressure changes caused by temperature. Adjust the tire inflation pressure to the specified level.
The light will turn off after a few minutes. In case the light does not turn off even if the tire
inflation pressure is adjusted, have th e system checked by your Lexus dealer.
Follow the correction procedures.
Open door warning lightMaster warning light
Low fuel level warning light
(Illuminates
without
blinking)
Tire pressure warning light*
Seat belt reminder light
For further information, re fer to the OWNER’S MANUAL.

What to do if...
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GS450h_QG_OM30F72U_(U)
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
See the OWNER’S MANUAL
Turn signal indicatorIntuitive parking assist
indicator (if equipped)
*
Headlight indicator (U.S.A.)“A F S O F F ” i n d i c a t o r
(if equipped)
Tail light indicator (Canada)
(Flashes)
Slip indicator
Headlight high beam indicatorVSC OFF indicator
Front fog light indicator
(if equipped)
(Flashes faster)
“PCS” warning light
(if equipped)
“READY” indicatorParking brake indicator
(U.S.A.)
EV indicatorParking brake indicator
(Canada)
Cruise control indicatorBrake hold standby indicator
Radar cruise control
indicator (if equipped)Brake hold operated indicator
Cruise control “SET” indicator
BSM (Blind Spot Monitor)
outside rear view mirror
indicators (if equipped)
LKA (Lane-Keeping assist)
indicator (if equipped) “A I R B A G O N /
OFF” indicator
For further information, refer to the OWNER’S MANUAL.