
701-5. Theft deterrent system
1-5.Theft deterrent system
The indicator light flashes after the 
engine switch 
turned off to indicate that the system is 
operating.
The indicator light stops flashing after the engine switch 
been turned to ACCESSORY or 
IGNITION ON mode 
indicate that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free type 
engine immobilizer system 
■Conditions that may  cause the system to 
malfunction
●If the grip portion of the key is in contact 
with a metallic object
●If the key is in close proximity to or touch-
ing a key registered to the security sys-
tem (key with a built-in transponder chip) 
of another vehicle
■Certifications for the engine immo bilizer system 
For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
Engine immobilizer system 
The vehicle’s keys have built-in tran-
sponder chips that prevent the 
engine 
ing if a key has not been previously 
registered in the vehicle’s on-board 
computer.
Never leave the keys inside the 
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all 
vehicle thefts.
Operating the system 

772-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver of mal-
functions in the indicated vehicle sys-
tems.
*1: These lights turn on when the engine switch 
IGNITION ON mode 
Warning lights
(U.S.A.)
Brake system warning light*1 
(  P.347)
(red)
(Canada)
Brake system warning light*1 
(  P.347)
Charging system warning 
light
*2 (  P.347)
Low engine oil pressure 
warning light
*2 (  P.347)
(U.S.A.)
Malfunction indicator lamp*1 
(  P.348)
(Canada)
Malfunction indicator lamp*1 
(  P.348)
SRS warning light
*1 
(  P.348)
(U.S.A.)
ABS warning light*1 
(  P.348)
(Canada)
ABS warning light*1 
(  P.348)
(red)
Electric power steering sys-
tem warning light
*1 ( P.348)
(yellow)
Electric power steering sys-
tem warning light
*1 ( P.348)
(Flashes or 
illuminates)
PCS warning light*1 
(  P.349)
(orange)
LKA indicator*2 ( P.349)
Slip indicator
*1 (  P.349)
Brake Override System 
warning light 
(  P.350)/Drive-Start Con-
trol warning light
*2 (  P.350)
Brake hold operated indica-
tor
*1, 3 (  P.350)
(U.S.A.)
Parking brake indicator*3 
(  P.350)
(Canada)
Parking brake indicator*3 
(  P.350)
(yellow)
Brake system warning light*1 
(  P.351)
Low fuel level warning light 
(  P.351)
Driver’s and front passen-
ger’s seat belt  reminder light 
(  P.351)
Rear passengers’  seat belt 
reminder lights
*4 (  P.351)
Master warning light
*1 
(  P.352)
Tire pressure warning light
*1, 3 
(  P.352)
High coolant temperature 
warning light
*2 (  P.352)
(if equipped)
Hybrid system overheat 
warning light
*2( P.353) 

782-1. Instrument cluster
indicate that a system check is being 
performed. They will turn off after the 
engine 
after a few seconds. There may be a 
malfunction in a system if a light does 
not come on, or turn off. Have the vehi-
cle inspected by your Lexus dealer.
*2: This light illuminates on the multi-infor-mation display.
*3: The light flashes to indicate a malfunc-tion.
*4: This light illuminates on the center  panel.
The indicators inform the driver of the 
operating state of the vehicle’s various 
systems.
■Operation indicators
WARNING
■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 engine 
are not available to he lp 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.
Indicators
Turn signal indicator 
(  P.175)
(U.S.A.)
Headlight indicator ( P.181)
(Canada)
Tail light indicator ( P.181)
Headlight high beam indica-
tor ( P.183)
Automatic High Beam indica-
tor
*1 ( P.184)
Cruise control indicator
*2 
(  P.214)
Dynamic radar cruise control 
indicator
*2 (  P.214)
Cruise control “SET” indica-
tor
*2 (  P.214)
(white)
LKA indicator*2 ( P.207)
(green)
LKA indicator*2 ( P.207)
(orange)
LKA indicator*2, 3 ( P.207)
(if equipped)
Intuitive parking assist indica-
tor ( P.225)
Slip indicator
*1, 3 (  P.244)
VSC OFF indicator
*1 
(  P.244)
PCS warning light
*1, 4 
(  P.200)
BSM (Blind Spot Monitor) 
outside rear view mirror indi-
cators
*5, 6 (  P.231)
BSM (Blind Spot Monitor) 
indicator ( P.231)
RCTA (Rear Cross Traffic 
Alert) indicator ( P.231)
Brake hold standby indica-
tor
*1 (  P.179)
Brake hold operated indica-
tor
*1 (  P.179)
Security indicator
*7 (  P.70, 
72) 

2004-5. Using the driving support systems
■Pre-collision warning
When the system determines that the 
possibility of a frontal collision is high, a 
buzzer will sound and a warning mes-
sage will be displayed on the multi-
information display to urge the driver 
to take evasive action.
■Pre-collision brake assist 
When the system determines that the 
possibility of a frontal collision is high, 
the system applies greater braking 
force in relation to  how strongly the 
brake pedal is depressed.
■Pre-collision braking
When the system determines that the 
possibility of a frontal collision is high, 
the system warns the driver. If the sys-
tem determines that the possibility of a 
frontal collision is extremely high, the 
brakes are automatically applied to 
help avoid the collision or reduce the 
collision speed.
■Suspension control
When the system determines that the 
possibility of a frontal collision is high, 
the Adaptive Variable Suspension Sys-
tem ( P.243) will control the damp-
ing force of the shock absorbers to 
help maintain an appropriate vehicle 
posture.
■Steering control (if equipped)
When the system determines that the 
possibility of a frontal collision is high 
and the driver is op erating the steering 
wheel, the LDH system ( P.244) will 
control the turning angle of the front 
PCS (Pre-Collision System)
The pre-collision system uses a 
radar sensor and front camera to 
detect vehicles and pedestrians in 
front of your vehicle. When the sys-
tem 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 increased to help 
the driver avoid the collision. If the 
system determines that the possi-
bility of a frontal collision with a 
vehicle or pedestrian is extremely 
high, the brakes are automatically 
applied to help avoid the collision or 
help reduce the impact of the colli-
sion.
The pre-collision system can be dis-
abled/enabled and the warning tim-
ing can be changed. ( P.202)
System functions 

2114-5. Using the driving support systems
4
Driving
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the fol-
lowing conditions are met.
• LKA is turned on.
• Vehicle speed is approximately 32 mph  (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane  is approximately 9.8 
ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or 
around a gentle curve with a radius of 
more than approximately 492 ft. (150 m).
• No system malfunctions are detected.  ( P.213)
●Steering assist function
This function operates when all of the fol-
lowing conditions are me t in addition to the 
operation conditions for the lane departure 
alert function.
•Setting for “Steering Assist” in   of the  multi-information display is set to “On”. 
( P.86)
• Vehicle is not accelerated or decelerated  by a certain amount or more.
• Steering wheel is not operated with a 
steering force level su itable for changing 
lanes.
• ABS, VSC, TRAC and PCS are not oper-
ating.
• TRAC or VSC is not turned off.
●Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Sway Warning” in   of the  multi-information display is set to “On”. 
( P.86)
• Vehicle speed is approximately 32 mph  (50 km/h) or more.
• Width of traffic lane  is approximately 9.8 
ft. (3 m) or more.
• No system malfunctions are detected.  ( P.213)
●Lane centering function
This function operates when all of the fol-
lowing conditions are met. • LKA is turned on.
• Setting for “Steering Assist” and “Lane 
Center” in   of the multi-information 
display are set to “On”. ( P.86)
• System recognizes white (yellow) lines.
• Dynamic radar cruise control with full- speed range is operating.
• Width of traffic lane is approximately 8.2  to 13.5 ft. (2.5 to 4.1 m).
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or 
around a gentle curve with a radius of 
more than approximately 656 ft. (200 
m).
• No system malfunctions are detected.  ( P.213)
• Vehicle does not ac celerate or deceler-
ate by a certain amount or more.
• Steering wheel is not operated with a  steering force level su itable for changing 
lanes.
• ABS, VSC, TRAC and PCS are not oper- ating.
• TRAC or VSC is not turned off.
• Steering assist function is not operating.
■Temporary cancellation of functions
When the operation conditions are no lon-
ger met, a function may be temporarily can-
celed. However, when the operation 
conditions are met agai n, operation of the 
function is automatically restored. ( P.211)
■Steering assist function/lane centering 
function
Depending on the vehicle speed, lane 
departure situation, road conditions, etc., 
the driver may not feel the function is oper-
ating or the function may not operate at all.
■Lane departure alert function
The warning buzzer may be difficult to hear 
due to external noise, audio playback, etc.
■Hands off steering wheel warning
When the system determines that the driver 
has removed their hands from the steering 
wheel while the steering  assist function or 
lane centering function  is operating, a warn-
ing message urging the driver to hold the 
steering wheel and the  symbol shown in the 
illustration are displayed on the multi-infor-
mation display. 

2154-5. Using the driving support systems
4
Driving
■Operation switchesVehicle-to-vehicle distance switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
WARNING
■Before using dynamic radar cruise 
control with full-speed range
●Driving safely is the  sole responsibility 
of the driver. Do not rely solely on the 
system, and drive safely by always pay-
ing careful attention to your surround-
ings. 
●The dynamic radar cruise control with 
full-speed range pr ovides driving 
assistance to reduce the driver’s bur-
den. However, there are limitations to 
the assistance provided. 
Read the following conditions care-
fully. Do not overly rely on this system 
and always drive carefully.
• When the sensor ma y not be correctly 
detecting the vehicle ahead:  P.222
• Conditions under which the vehicle- to-vehicle distance control mode may 
not function correctly:  P.223
●Set the speed appropriately depend-
ing on the speed limit, traffic flow, road 
conditions, weather  conditions, etc. 
The driver is responsible for checking 
the set speed.
A
B
C
D
E
●Even when the system is functioning 
normally, the condition of the preced-
ing vehicle as detected by the system 
may differ from the condition 
observed by the driver. Therefore, the 
driver must always remain alert, assess 
the danger of each situation and drive 
safely. Relying on this system or assum-
ing the system ensures safety while 
driving can lead to an accident, result-
ing in death or serious injury.
●Switch the dynamic radar cruise con-
trol with full-speed range off using the 
cruise control main switch when not in 
use.
■Cautions regarding the driving assist 
systems
Observe the following precautions, as 
there are limitations to the assistance 
provided by the system. 
Failure to do so may cause an accident 
resulting in death  or serious injury.
●Assisting the driver to measure follow-
ing distance 
The dynamic radar cruise control with 
full-speed range is only intended to 
help the driver in determining the fol-
lowing distance between the driver’s 
own vehicle and a designated vehicle 
traveling ahead. It  is not a mechanism 
that allows careless  or inattentive driv-
ing, and it is not a system that can assist 
the driver in low-visibility conditions. It 
is still necessary for driver to pay close 
attention to the vehicle’s surroundings.
●Assisting the driver to judge proper 
following distance 
The dynamic radar cruise control with 
full-speed range determines whether 
the following distance between the 
driver’s own vehicle and a designated 
vehicle traveling ahead is within a set 
range. It is not capable of making any 
other type of judgement. Therefore, it 
is absolutely necessary for the driver to 
remain vigilant and to determine 
whether or not there is a possibility of 
danger in any given situation. 

2274-5. Using the driving support systems
4
Driving
• When the engine switch 
TION ON mode 
■If “Clean Parking Assist Sensor” is dis-
played on the multi-information display
A sensor may be dirty or covered with snow 
or ice. In such cases,  if it is removed from 
the sensor, the system should return to nor-
mal.
Also, due to the sensor being frozen at low 
temperatures, a malfunction display may 
appear or an obstacle may not be detected. 
If the sensor thaws out, the system should 
return to normal.
■If “Parking Assist Malfunction” or “Park-
ing Assist Malfunction Visit Your 
Dealer” is displayed on the multi-infor-
mation display
There is a malfunction and the device may 
not be working properly.
Have the vehicle inspected by your Lexus 
dealer.
■Sensor detectio n information
●The sensor’s detection areas are limited 
to the areas around the vehicle’s front and 
rear bumpers.
●Certain vehicle conditions and the sur-
rounding environment may affect the 
ability of the sensor to correctly detect 
obstacles. Particular instances where this 
may occur are listed below.
• There is dirt, snow or ice on the sensor.  (Wiping the sensors will resolve this 
problem.)
• The sensor is frozen. (Thawing the area  will resolve this problem.) 
In especially cold weather, if a sensor is 
frozen the screen may show an abnormal 
display, or obstacles may not be 
detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one  side.
• On an extremely bumpy road, on an  incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to 
vehicle horns, motorcycle engines, air 
brakes of large vehicles, or other loud 
noises producing ultrasonic waves.
• There is another vehicle equipped with  parking assist sensor in the vicinity.
• The sensor is coated with a sheet of spray  or heavy rain.
• The vehicle is equipped with a fender  pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong 
impact.
• The vehicle is approaching a tall or 
curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is  not detected.
• If obstacles draw too  close to the sensor.
• A non-genuine Lexus suspension (low-
ered suspension etc.) is installed.
• People may not be detected if they are  wearing certain types of clothing.
In addition to the examples above, there are 
instances in which, be cause of their shape, 
signs and other objects may be judged by 
the sensor to be closer than they are.
●The shape of the obstacle may prevent 
the sensor from detecting it. Pay particu-
lar attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that 
absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections pro- jecting outwards in the direction of your 
vehicle
●The following situations may occur 
during use.
• Depending on the shape of the obstacle  and other factors, the detection distance 
may shorten, or detection may be impos-
sible.
• Obstacles may not be detected if they 
are too close to the sensor.
• There will be a short delay between  obstacle detection and display. Even at 
slow speeds, there is  a possibility that the 
obstacle will come within the sensor’s 
detection areas befo re the display is 
shown and the warning beep sounds.
• Thin posts or object s lower than the sen-
sor may not be detected when 
approached, even if they have been 
detected once.
• It might be difficult to hear beeps due to  

2434-5. Using the driving support systems
4
Driving
■ECB (Electronically Controlled 
Brake System)
The electronically controlled system 
generates braking force correspond-
ing to the brake operation
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the 
brakes are applied suddenly, or if the 
brakes are applied while driving on a 
slippery road surface
■Brake assist
Generates an increased level of brak-
ing force after the brake pedal is 
depressed when the system detects a 
panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to  control skidding 
when swerving sudden ly or turning on 
slippery road surfaces
■TRAC (Traction Control)
Helps to maintain drive power and pre-
vent the drive wheels from spinning 
when starting the vehicle or accelerat- ing on slippery roads
■Active Cornering Assist (ACA) (if 
equipped)
Helps to prevent the vehicle from drift-
ing to the outer side by performing 
inner wheel brake control when 
attempting to accele rate while turning
■Hill-start assist control
Helps to reduce the backward move-
ment of the vehicle when starting on an 
uphill
■VGRS (Variable Gear Ratio Steer-
ing) (if equipped)
Adjusts the front wheel turning angle in 
accordance with the vehicle speed and 
steering wheel movement
■DRS (Dynamic Rear Steering) (if 
equipped)
Contributes to the turning characteris-
tics and responsiveness of the vehicle 
by slightly adjusting the rear wheel 
angle of the vehicle in accordance with 
steering wheel movement
■EPS (Electric Power Steering)
Employs an electric motor to reduce 
the amount of effort needed to turn the 
steering wheel
■AVS (Adaptive Variable Suspen-
sion System)
By independently controlling the 
damping force of th e shock absorbers 
for each of the 4 wheels according to 
the road and driving conditions, this 
system helps riding comfort with supe-
rior vehicle stability, and helps good 
vehicle posture.
Also, the damping force changes 
Driving assist systems
To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to 
various driving situations. Be aware, 
however, that these systems are 
supplementary and should not be 
relied upon too heavily when oper-
ating the vehicle.
Summary of the driving assist 
systems