brake Lexus IS300 2019 Owner's Manual / LEXUS 2019 IS300,IS350 OWNER'S MANUAL QUICK GUIDE (OM53E86U)

24
Lexus Safety System +
■PCS (Pre-Collision System)
The pre-collision system uses a radar sensor and camera sensor to detect vehicles and
pedestrians in front of your vehicle. When th e system determines that the possibility of a
frontal collision with a vehicle or pedestrian is high, a warning operates to urge the driver to
take evasive action and the potential brake pressure is increase d to help the driver avoid the
collision. If the system determin es that the possibility of a frontal collision with a vehicle or
pedestrian is extremely high, the brakes are au tomatically applied to help avoid the collision
or help reduce the impact of the collision.
■ LDA (Lane Departure Alert with steering control)
 P. 28
■Automatic High Beam
 P. 18
■Dynamic radar cruise control
 P. 25
The Lexus Safety System + consists of the fo llowing drive assist systems and contributes
to a safe and comfortable driving experience:

27
■Canceling and resuming the speed control
Pulling the lever toward you cancels
the speed control.
The speed control is also canceled
when the brake pedal is depressed.
Pushing the lever up resumes the
cruise control and returns vehicle
speed to th e set speed.
However, cruise control does not
resume when the vehicle speed is
approximately 25 mph (40 km/h) or
less.
■ Selecting constant speed control mode
With the cruise control off, press and
hold the “ON/OFF” button for 1.5 sec-
onds or more.
Immediately after the “ON/OFF”
button is pressed, the radar cruise
control indicator will come on. After-
wards, it switches to the cruise con-
trol indicator.
Switching to constant speed control
mode is only possib le when operating
the lever with the cruise control off.
Accelerate or dece lerate, with accel-
erator pedal operation, to the desired
vehicle speed (at or above approxi-
mately 30 mph [50 km/h]) and push
the lever down to set the speed.
Cruise control “SET” indicator will
come on.
The vehicle speed at the moment the
lever is released becomes the set
speed.
1
2
1
2

What to do if...
69
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 (if equipped)
Have the vehicle inspected immediately.
(U.S.A.)Malfunction 
indicator lamp(flashes or
illuminates)PCS warning light
(Canada)Slip indicator
SRS warning light
(Flashes)
“AFS OFF” indicator 
(if equipped)
(U.S.A.)
ABS warning light(Blinking
and then
continu-
ously on)Tire pressure warning light
(Canada)
Electric power steering 
system warning light
For further information, re fer to the Owner’s Manual.

70
What to do if...
Follow the correction procedures.
(U.S.A.)Parking brake 
warning light Low fuel level warning light
(Canada)Driver’s and front passenger’s
seat belt reminder light
LDA (Lane Departure Alert)
indicatorRear passengers’ seat
belt reminder lights
(flashes or
illuminates)PCS warning lightMaster warning light
(Illuminates without
blinking)Tire pressure warning light*1
Open door warning light
See the Owner’s Manual
Turn signal indicatorIntuitive parking assist 
indicator (if equipped)
Headlight indicator (U.S.A.)
(Flashes)
Slip indicator
Tail light indicator (Canada)VSC OFF indicator
Headlight high beam indicatorPCS warning light
Automatic High Beam 
indicator“AFS OFF” indicator 
(if equipped)
Cruise control indicatorBSM (Blind Spot Monitor) 
outside rear view mirror 
indicators (if equipped)
Dynamic radar cruise control
indicator
Cruise control “SET” indicatorSecurity indicator
LDA (Lane Departure Alert)
indicatorLow outside temperature 
indicator
LDA (Lane Departure Alert) 
indicator
Eco Driving Indicator Light
(Flashes)
LDA (Lane Departure Alert)
indicatorEco drive mode indicator*2

What to do if...
71
*1: 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 adju sted, have the system checked by your Lexus dealer.
*2:Except F SPORT models
*3:F SPORT models
If the engine doesn’t start
Make sure that the correct operating procedures have been followed.
Make sure that the brake pedal is firmly
depressed when attempting to start the
engine.
Eco drive mode indicator*3“CUSTOMIZE” indicator 
(if equipped)
*3
“SPORT” indicator*2Snow mode indicator
“SPORT” indicator 
(if equipped)
*3“AIR BAG ON/OFF”
indicator (U.S.A.)
“SPORT S” indicator 
(if equipped)
*3“AIR BAG ON/OFF”
indicator (Canada)
“SPORT S+” indicator 
(if equipped)
*3
For further information, re fer to the Owner’s Manual.
Brake pedal
If the engine still does not start, see the “OWNER’S MA NUAL” for more information or
contact your Lexus dealer.

What to do if...
73
■Starting the engine
Ensure that the shif t lever is in P and
depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch
will turn to ACCESSORY mode.
Firmly depress the brake pedal and
check that is shown on the
multi-information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus dealer.
If equipped
1
2
3
4
If the electronic key battery is depleted, a warning message will be shown on the multi-
information display. Replace th e battery with a new one. For instructions on replacing the
battery, refer to the “OWNER ’S MANUAL”. If you need further assistance, contact your
Lexus dealer.