
4847-3. Do-it-yourself maintenance
IS200t_EE(OM53D19E)
Install the outer cover of the mir-
ror by installing the lower side
first, then installing the upper side.
When installing the lower side of the
cover, insert the side turn signal light
pin into the hole in the cover.
Secure the cover with screws and
reconnect the connectors back
together.
Secure the wire harness by reinstall-
ing it to the hooks on the back side of
the mirror surface as it was.
Align the tabs, and secure the
mirror by pushing in each diago-
nally-opposite pair of tabs in
order.
Make sure to insert the tabs in order
as shown in the illustration, and push
them in until a click is heard.
If you do not hear the click, do not
force the tabs in. Instead, remove the
mirror and check that the tabs are
aligned.
After securing the mirror, remove the
protective tape applied to the lower
part of the mirror cover.
10
11
12

5018-2. Steps to take in an emergency
8
When trouble arises
IS200t_EE(OM53D19E)
ABS warning lightIndicates a malfunction in:
•The ABS; or
• The brake assist system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS (Electric Power Steering) sys-
tem
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
(Flashes)
(If equipped)
Pre-crash safety system warning light Indicates a malfunction in the PCS (Pre-Crash Safety system)
The warning light will operate as follows, even when the system is
not malfunctioning:
• The light will flash quickly when the system is operating. (→ P. 2 9 1 )
• The light will turn on when the pre-crash safety system is dis- abled. ( →P. 2 9 2 )
• The light will turn on when the VSC (Vehicle Stability Control)
system is disabled. ( →P. 2 8 8 )
• The light will flash when the system cannot temporarily be used.
(→ P. 5 1 5 )
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Slip indicator
Indicates a malfunction in:
• The VSC (Vehicle Stability Control) system;
• The TRC (Traction Control) system; or
• The hill-start assist control system
The light will flash when the VSC or the TRC system is operating.
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Automatic headlight leveling system warning light
Indicates a malfunction in the au tomatic headlight leveling system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
Warning lightWarning light/Details/Actions

5048-2. Steps to take in an emergency
IS200t_EE(OM53D19E)
■If the tire pressure warning light frequently comes on after blinking for 1 minute (if
equipped)
If the tire pressure warning light frequently comes on after blinking for 1 minute when the
engine switch is turned to IGNITION ON mode, have it checked by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location or audio
sound.
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional. The vehicle will
become extremely unstable during braking, and the ABS system may fail, which could
cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than us ual when operating, hold firmly and oper-
ate using more force than usual.
■If the tire pressure warning light comes on (if equipped)
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
XVehicles with a compact spare tire
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it
with the spare tire and have the flat tire repaired by the nearest authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
XVehicles with an emergency tire puncture repair kit
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, repair the
flat tire by using emergency tire puncture repair kit.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

5108-2. Steps to take in an emergency
IS200t_EE(OM53D19E)
Indicates a malfunction in:
•The ABS; or
• The brake assist systemA buzzer also sounds.
→ Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Indicates that the engine coolant temperature is too high
A buzzer also sounds.
→ P. 5 5 7
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice
A buzzer also sounds.
→ Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system is
unable to judge vehicle-to-vehicle distance
A buzzer also sounds.
→ Tu r n o f f s n o w m o d e .
If the windshield wipers are on, turn them off or set
them to a mode other than AUTO or high speed
wiper operation.
(If equipped)
Indicates that the LDA (Lane Departure Alert) system is
suspended (The camera sensor temperature is higher
than the operation temperature range)
A buzzer also sounds.
→ Restart the LDA after driving for a while.
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-
rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
→ Clean the sensor and its surrounding area on the
bumper.
Wa r n i n g m e s s a g eDetails/Actions

5328-2. Steps to take in an emergency
IS200t_EE(OM53D19E)
CAUTION
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically designed for use with
your vehicle. Do not use your compact spare tire on another vehicle.
●Do not use more than one compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steeri ng, sudden braking and shifting operations
that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may not
operate correctly:
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to observe
this precaution may lead to an accid ent causing death or serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
NOTICE
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires (vehicles with a tire pressure warning system)
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional as the tire pressure warning valve and transmitter may be dam-
aged if not handled correctly.
• ABS & Brake assist
•VSC
•TRC
• Cruise control (if equipped)
• Dynamic radar cruise control (if equipped)
•PCS (if equipped)
•EPS • LDA (Lane departure alert)
(if equipped)
• Rear view monitor system (if equipped)
• Lexus parking assist monitor (if equipped)
• Lexus parking assist-sensor
(if equipped)
• Navigation system (if equipped)

592
IS200t_EE(OM53D19E)Alphabetical index
Alphabetical index
A/C ........................................................... 398
Air conditioning filter........................ 464
Automatic air conditioning system ................................................. 398
S-FLOW mode................................. 400
Blower customization .................... 405
AAC disc .................................................340
ABS (Anti-lock Brake System) .......285 Function ..................................................285
Warning light ........................................ 501
Accent color ............................................ 104
Air conditioning filter .......................... 464
Air conditioning system .................... 398
Air conditioning filter........................ 464
Automatic air conditioning system ................................................. 398
S-FLOW mode................................. 400
Blower customization .................... 405 Airbags .......................................................... 41
Airbag manual on-off system..........52
Airbag operating conditions ........... 47
Airbag precautions for
your child ...............................................43
Correct driving posture.....................34
Curtain shield airbag operating conditions .............................................. 47
Curtain shield airbag precautions .......................................... 45
General airbag precautions ............43
Locations of airbags ............................. 41
Modification and disposal of airbags.....................................................46
Side airbag operating conditions .............................................. 47
Side airbag precautions.....................43
Side and curtain shield airbags operating conditions ........................ 47
Side and curtain shield airbags
precautions ...........................................43
SRS airbags ............................................... 41
SRS warning light ............................. 500
Airbag manual on-off system ............. 52
Alarm ............................................................ 83
Anchor brackets .......................................67
Antennas (smart entry & start system) .........................................134
A

593Alphabetical index
IS200t_EE(OM53D19E)
Anti-lock Brake System (ABS) .......285Function ..................................................285
Warning light ........................................ 501
Approach warning ............................... 249
Armrest ..................................................... 423
Assist grips .............................................. 425
Audio input ............................................... 321
Audio system ........................................... 314
Audio CD player ...............................340
Audio input ............................................. 321
AUX port/USB port .............................................. 321
Bluetooth
® audio .............................. 364
iPod........................................................... 347
Optimal use ..........................................330
Portable music player......................355
Radio ........................................................338
Steering wheel audio switch ........320
USB memory...................................... 350
Automatic headlight leveling
system .....................................................212Warning light ........................................ 501
Automatic High Beam ........................ 213
Automatic light control system ....... 210
AUX port .................................................. 321
Average fuel economy........................ 102
Average vehicle speed ....................... 102 Back-up light
Replacing light bulb .........................480
Wattage ................................................. 573
Battery........................................................447 Battery checking.................................447
If the vehicle has discharged battery.................................................. 553
Preparing and checking before winter.................................... 309
Warning light...................................... 500
Blind Spot Monitor (BSM) .............. 299
Blower customization......................... 405
Bluetooth®
Audio system....................................... 364
Hands-free system
(for cellular phone) ....................... 366
Bottle holders...........................................416
Brake Fluid ............................................................ 571
Parking brake ...................................... 209
Warning light...................................... 500
Brake assist ............................................ 285
Break-in tips ............................................. 179
Brightness control Instrument panel light control ........ 98
BSM (Blind Spot Monitor) ............... 299
B

610Alphabetical index
IS200t_EE(OM53D19E)
Warning buzzersApproach warning............................ 249
Brake system ...................................... 500
Downshifting ........................................206
Driver’s and front passenger’s seat belt
reminder .............................................502
Lexus parking assist-sensor ......... 266
Open door............................................502
Pre-crash braking ...............................291
Rear passengers’ seat belt reminder .............................................502 Warning lights ............................................ 91
ABS ............................................................501
Automatic headlight leveling system....................................................501
Brake system ...................................... 500
Charging system .............................. 500
Driver’s and front passenger’s seat belt
reminder light................................... 502
Electric power steering
system....................................................501
Low fuel level....................................... 502
Malfunction indicator lamp ......... 500
Master warning light ........................ 502
Open door ........................................... 502
Pre-crash safety system ...................501
Rear passengers’ seat belt reminder lights ................................ 502
Slip indicator ..........................................501
SRS .......................................................... 500
Tire pressure........................................ 502
W