brake Lexus IS220d 2012 Workshop Manual

5
459
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission.
Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may
be temporarily towed using a cable or chain secured to the emer-
gency towing eyelet(s). This should only be attempted on hard,
surfaced roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
If towing is necessary, we recommend having your vehicle towed by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, such as a commercial towing service, using a
lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
If towing from the rear, the vehicle's front wheels and axles must be in
good condition. (P. 463)
If they are damaged, use a towing dolly or flat bed truck.

460
5-1. Essential information
IS250/220d/200d_EETowing eyelets
Emergency towing procedure
Release the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode
or IGNITION ON mode.
CAUTION
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles 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.
NOTICE
To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.
This may cause serious damage to the transmission.
When towing a vehicle without using a towing dolly
(vehicles with a manual transmission)
The “ENGINE START STOP” switch must not be OFF.
STEP1
STEP2
STEP3

5
463
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
Towing with a wheel lift-type truck
From the front
Vehicles with an automatic
transmission: Use a towing
dolly under the rear wheels.
Vehicles with a manual trans-
mission: We recommend to use
a towing dolly under the rear
wheels.
When not using a towing dolly,
release the parking brake and
shift the shift lever to N.
From the rear
Switch to ACCESSORY mode
so that the steering wheel is
unlocked.
NOTICE
To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.

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.

478
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Indicates that the trunk
is not fully closed.
flashes and a
buzzer sounds to indi-
cate that trunk is not
fully closed (with the
vehicle having reached
a speed of 5 km/h [3
mph]).
Close the trunk.
(Flashing)
(If equipped)
Indicates that the moon
roof is not fully closed
(with the “ENGINE
START STOP” switch
OFF and the driver's
door opened).
Close the moon roof.
Indicates that the park-
ing brake is still
engaged.
flashes and a
buzzer sounds to indi-
cate that the parking
brake is still engaged
(with the vehicle hav-
ing reached a speed of
5 km/h [3 mph]).
Release the parking
brake.
Warning messageDetailsCorrection procedure

480
5-2. Steps to take in an emergency
IS250/220d/200d_EE
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice.
Clean the sensor.
(Flashing)
(If equipped)
Indicates that the
dynamic radar cruise
control sensor is dirty or
covered with ice.
Clean the sensor.
(Flashing and then
continuously on)
(Flashing)
(If equipped)
Indicates that the
dynamic radar cruise
control system is unable
to judge vehicle-to-
vehicle distance.
• Switch the driving
mode to either the nor-
mal or power mode.
• If the windshield wip-
ers are on, turn them
off or set them to
either the intermittent
or the slow mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehi-
cle ahead (in dynamic
radar cruise mode).
Slow the vehicle by
applying the brakes.
Warning messageDetailsCorrection procedure

5
481
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
(Flashing)
(If equipped)
Indicates that there is a
high possibility of a
frontal collision, or that
the pre-crash braking
function is operating.
Slow the vehicle by
applying the brakes.
(On some IS250
models)
Indicates that the fuel
injectors require main-
tenance.Have your Lexus dealer
replenish the injector
cleaner and reset the
message.
Warning messages in the radar cruise mode (if equipped)
In the following instances, there is a possibility that the approach warning
will not illuminate even when vehicle-to-vehicle distance is closing.
When the speed of the vehicle ahead matches or exceeds your vehicle’s
speed.
When the vehicle ahead is traveling at an extremely slow speed.
Immediately after the cruise control speed has been set.
At the instant the accelerator is applied.
Warning messageDetailsCorrection procedure

484
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Once
(Flashing)
Indicates that
the key battery
is low.Replace the bat-
tery. (P. 435)
Once
(Vehicles with an
automatic transmis-
sion)
Indicates that a
door has been
opened or closed
and the
“ENGINE
START STOP”
switch has been
turned twice to
ACCESSORY
mode with the
“ENGINE
START STOP”
switch OFF.
Press the
“ENGINE
START STOP”
switch while
applying the
brakes.
Once
(Vehicles with a man-
ual transmission)
Indicates that a
door has been
opened or closed
and the
“ENGINE
START STOP”
switch has been
switched twice
to ACCES-
SORY mode
from OFF.
Press the
“ENGINE
START STOP”
switch while
depressing the
clutch pedal.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure

5
485
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE

(Flashing)
Indicates that
the steering lock
has not released
within 3 seconds
of pressing the
“ENGINE
START STOP”
switch.Press the
“ENGINE
START STOP”
switch again
while turning
the steering
wheel with the
brake pedal
depressed.
Once
(Vehicles with an
automatic transmis-
sion)
Indicates that
the electronic
key does not
operate properly.
P. 5 2 1

(Vehicles with an
automatic transmis-
sion)
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure