Page 165 of 390

1654-5. Using the driving support systems
4
Driving
Press the LDA switch to turn the LDA 
system on.
The LDA indicator illuminates and a mes-
sage is displayed on the multi-information 
display.
Press the LDA switch again to turn the 
LDA system off.
When the LDA system is turned on or off, 
operation of the LDA system continues in the same condition the next time the 
engine is started.
LDA indicator
The illumination condition of the indicator 
informs the driver of the system operation 
status.
Illuminated in white: 
LDA system is operating.
Illuminated in green: 
Steering wheel assistan
ce of the steering 
control function is operating.
Flashing in orange: 
WARNING
●Asphalt repair marks, white (yellow) 
line marks, etc. are present due to road 
repair.
●Vehicle is driven in a temporary lane or 
restricted lane due to construction 
work.
●Vehicle is driven on a road surface 
which is slippery due to rainy weather, 
fallen snow, freezing, etc.
●Vehicle is driven in traffic lanes other 
than on highways and freeways.
●Vehicle is driven in a construction 
zone.
●During emergency towing
■Preventing LDA system malfunctions 
and operations performed by mistake
●Do not modify the headlights or place 
stickers, etc. on the surface of the 
lights.
●Do not modify the suspension etc. If 
the suspension etc. needs to be 
replaced, contact your Lexus dealer.
●Do not install or place anything on the 
hood or grille. Also, do not install a 
grille guard (bull bars, kangaroo bar, 
etc.).
●If your windshield needs repairs, con-
tact your Lexus dealer.
Turning LDA system on
Indications on multi-information 
display
A 
     
        
        Page 274 of 390

2746-3. Do-it-yourself maintenance
there is no light leaking from the bulb base.
8Align the tabs and push the light 
unit toward the front of the vehicle 
to install it.
9
Install the 2 screws and cover.
1
0Remove the protective tape.
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to 
replace the bulb immediately after 
turning off the lights. The bulbs 
become very hot and may cause 
burns.
●Do not touch the glass portion of the 
light bulb with bare hands. When it is 
unavoidable to hold the glass portion, 
use and hold with a clean dry cloth to 
avoid getting moisture and oils on the 
bulb. Also, if the bulb is scratched or 
dropped, it may blow out or crack.
●Fully install light bulbs and any parts 
used to secure them. Failure to do so 
may result in heat damage, fire, or 
water entering the lig ht unit. This may 
damage the lights or cause condensa-
tion to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and 
locked.
●Check the wattage of the bulb before 
installing to prevent heat damage. 
     
        
        Page 284 of 390

2827-2. Steps to take in an emergency
4Tighten down the towing eyelet 
securely using a wheel nut wrench 
or hard metal bar.
5 Securely attach cables or chains to 
the towing eyelet. 
Take care not to damage the vehi-
cle body.
6 Enter the vehicle being towed and 
start the engine. 
If the engine does not start, turn the 
engine switch to IGNITION ON 
mode.
7 Shift the shift lever to N and release 
the parking brake. 
When the shift lever cannot be 
shifted:  P.130
■While towing
If the engine is not running, the power assist 
for the brakes and steering will not function, 
making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in trunk. 
(  P.296)
 Fluid leaks under the vehicle.
(Water dripping from the air condi-
tioning after use is normal.)
 Flat-looking tires or uneven tire 
wear
 Engine coolant temperature gauge 
continually points higher than nor-
mal.
 Changes in exhaust sound
 Excessive tire squeal when corner-
ing
 Strange noises related to the sus-
pension system
 Pinging or other noises related to 
the engine
 Engine missing, stumbling or run-
ning roughly
 Appreciable loss of power
 Vehicle pulls heavily to one side 
when braking
If you think something is 
wrong
If you notice any of the following 
symptoms, your vehicle probably 
needs adjustment or repair. Con-
tact your Lexus dealer as soon as 
possible.
Visible symptoms
Audible symptoms
Operational symptoms