2011 Lexus IS220d warning light

211
2-4. Using other driving systems
2
When driving
IS250/220d/200d_EE
Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following
situations:
Actual vehicle speed is more than approximately 16 km/h (10 mph)
below the set vehicle speed.
At this time, the memorized set speed is not retained.
Actual vehicle speed falls below approximately 40 km/h (25 mph).
VSC is activated.
Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-
vehicle distance control operates properly. (Some obstructions, such as
snow, ice and plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Warning lights, messages and buzzers for dynamic radar cruise control
Warning lights, messages and buzzers are used to indicate a system mal-
function or to inform the driver of the need for caution while driving. (P.
467, 473)
Grille cover
Radar sensor

230
2-4. Using other driving systems
IS250/220d/200d_EE
PCS (Pre-Crash Safety system)
When the radar sensor detects possibility of a frontal collision, the pre-
crash safety system such as the brakes and seat belts are automatically
engaged to lessen impact and injuries to occupants as well as vehicle
damage.
Pre-crash seat belts
If the pre-crash sensor detects that a collision is unavoidable, the
pre-crash safety system will retract the seat belt before the collision
occurs.
The same will happen if the driver makes an emergency braking or
loses control of the vehicle. (P. 7 6 )
However, the system will not operate in the event of skidding when
the VSC systems are disabled.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the brake
pedal is depressed.
Pre-crash braking
When there is a high possibility of a frontal collision, the system
warns the driver using a warning light, warning display and buzzer.
If the system determines that a collision is unavoidable, the brakes
are automatically applied to reduce the collision speed. The pre-

: If equipped

231
2-4. Using other driving systems
2
When driving
IS250/220d/200d_EE
Disabling the pre-crash braking
The pre-crash braking function
can be turned on and off using
the satellite switch. (P. 365)
Press “”or “” to display the
PCS brake setting ( ). Then,
press the “ON/OFF” button in
the middle of the switch to
select either “ON” or “OFF”
().
It may take approximately 3
seconds for the display to
change after the satellite switch
is operated.
The “PCS” warning light
flashes when “OFF” is selected.
Radar sensor
Detects vehicles or other obsta-
cles on or near the road ahead
and determines whether a colli-
sion is imminent based on the
position, speed, and heading of
the obstacles.
Grille cover
Radar sensor
Obstacles not detected
The sensor cannot detect plastic obstacles such as pylons. There may also be
occasions when the radar sensor cannot detect pedestrians, animals, bicy-
cles, motorcycles, trees, or snowdrifts.

235
2-4. Using other driving systems
2
When driving
IS250/220d/200d_EE
When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (P. 467,
473)
Certification
Hereby, DENSO CORPORATION declares that this DNMWR005 is in
compliance with the essential requirements and other relevant provisions
of Directive 1999/5/EC.
Hér með lýsir DENSO CORPORATION yfir því að DNMWR005 er í
samræmi við grunnkröfur og aðrar kröfur, sem gerðar eru í tilskipun
1999/5/EC.
Con la presente DENSO CORPORATION dichiara che questo
DNMWR005 è conforme ai requisiti essenziali ed alle altre disposizioni
pertinenti stabilite dalla direttiva 1999/5/CE.
Käesolevaga kinnitab DENSO CORPORATION seadme DNMWR005
vastavust direktiivi 1999/5/EÜ põhinõuetele ja nimetatud direktiivist
tulenevatele teistele asjakohastele sätetele.
Hierbij verklaart DENSO CORPORATION dat het toestel DNMWR005 in
overeenstemming is met de essentiële eisen en de andere relevante
bepalingen van richtlijn 1999/5/EG.
ME 

5When trouble arises
457
5-1. Essential information
Emergency flashers .......... 458
If your vehicle needs to
be towed ......................... 459
If you think something is
wrong ............................. 465
Fuel pump shut off
system ............................ 466
5-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ......................... 467
If a warning message is
displayed ........................ 473
If you have a flat tire
(vehicles with a spare
tire)................................. 485
If you have a flat tire
(vehicles with an
emergency tire
puncture repair kit) ........ 497
If the engine will not start 512
If the shift lever cannot
be shifted from P............ 514
If you lose your keys ........ 515If the electronic key
does not operate
properly.......................... 516
If the vehicle battery is
discharged ...................... 521
If your vehicle overheats . 525
If you run out of fuel
and the engine stalls....... 528
If the vehicle becomes
stuck............................... 529
If your vehicle has to
be stopped in an
emergency...................... 531

5
467
When trouble arises
IS250/220d/200d_EE
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be danger-
ous.
The following warning indicates a possible problem in the brake
system. Immediately stop the vehicle in a safe place and contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
*: Parking brake engaged warning buzzer:
P. 4 7 7
Wa r n i n g
lightsWarning light/Details
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

468
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead
to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional,
immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The seat belt pretensioner system.
ABS warning light
Indicates a malfunction in:
•The ABS;
• The brake assist system.

5
469
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Electric power steering warning light
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Pre-crash safety system warning light (if equipped)
Indicates a malfunction in the 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 operat-
ing.
(P. 230)
• The light will flash when the pre-crash braking is dis-
abled. (P. 231)
• The light will flash when the system cannot temporarily
be used. (P. 477)
Slip indicator
Indicates a malfunction in:
•The VSC system;
•The TRC system; or
• The hill-start assist control system
Fuel filter warning light (vehicles with a manual transmis-
sion)
Indicates that the amount of accumulated water in the
fuel filter has reached the specified level.
Warning lightWarning light/Details