2012 Lexus IS250C warning light

122
1-7. Safety information
CAUTION
■Front passenger occupant classification system precautions
●Do not recline the front passenger seatback so far that it touches a rear seat. This
may cause the “AIR BAG OFF” indicator ligh t to be illuminated, which indicates
that the passenger’s airbags will not deploy in the event of a severe accident. If the
seatback touches the rear se at, return the seatback to a position where it does
not touch the rear seat. Keep the front pa ssenger seatback as upright as possible
when the vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness of the seat belt system.
●If an adult sits in the front passenger se at, the “AIR BAG ON” indicator light is illu-
minated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger to sit
up straight, well back in the seat, feet on the floor, and with the seat belt worn cor-
rectly. If the “AIR BAG OFF” indicator still remains illuminated, either ask the pas-
senger to move to the rear seat, or if th at is not possible, move the front passenger
seat fully rearward.
●When it is unavoidable to install the forward facing child restraint system on the
front passenger seat, install the child rest raint system on the front passenger seat
in the proper order. ( P. 1 2 7 )
●Do not modify or remove the front seats.
●Do not kick the front passenger seat or subject it to severe impact. Otherwise,
the SRS warning light may come on to indicate a malfunction of the detection sys-
tem. In this case, contact your Lexus dealer immediately.
●Child restraint systems installed on the rear seat should not contact the front seat-
backs.
●Do not use a seat accessory, such as a cushion or seat cover, that covers the seat
cushion surface.
●Do not modify or replace the upholstery of the front seat.

When driving2
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2-1. Driving proceduresDriving the vehicle.................. 138
Engine (ignition) switch ......... 148
Automatic transmission ........ 153
Manual transmission .............. 160
Turn signal lever ....................... 162
Parking brake ........................... 163
Horn ............................................ 165
2-2. Instrument cluster Gauges and meters ................ 166
Indicators and warning lights ......................................... 172
Multi-information display ...... 176
2-3. Operating the lights and windshield wipers
Headlight switch....................... 181
Fog light switch ........................ 185
Windshield wipers and washer ..................................... 187
Headlight cleaner switch...... 194 2-4. Using other driving
systems
Cruise control.......................... 195
Dynamic radar cruise control ..................................... 199
Intuitive parking assist ........... 213
Driving assist systems ............ 219
Hill-start assist control ......... 225
PCS (Pre-Collision System) .................................. 227
2-5. Driving information Cargo and luggage ............... 234
Vehicle load limits .................. 237
Winter driving tips ................. 238
Trailer towing .......................... 242
Dinghy towing (vehicles with an
automatic transmission).... 243
Dinghy towing (vehicles with a manual
transmission) ........................ 244

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2-2. Instrument cluster
Indicators and warning lights
The indicator and warning lights on the instrument cluster and center
panel inform the driver of the status of the vehicle’s various systems.
Instrument cluster
The units used on the speedometer and the tachometer gauge display may
differ depending on the model/type.

Center panel

174
2-2. Instrument cluster
*1: These lights turn on when the “ENGINE START STOP” switch isturned to IGNITION ON mode to indicate that a system check is
being performed. They will turn off after the engine is started, or after a
few seconds. There may be a malfunction in a system if a light does not
come on, or if the lights do not turn off. Have the vehicle inspected by
your Lexus dealer.
*2: The light flashes to indicate that the system is operating.
■ Warning lights
Warning lights inform the driver of malfunctions in any of the vehi-
cle’s systems. ( P. 495)
*: These lights turn on when the “ENGINE START STOP” switch is turned
to IGNITION ON mode to indicate that a system check is being per-
formed. They will turn off after the en gine is started, or after a few sec-
onds. There may be a malfunction in a system if a light does not come on,
or if the lights do not turn off. Have the vehicle inspected by your Lexus
dealer.
(U.S.A.)(Canada)(U.S.A.)(Canada)
(U.S.A.)(Canada)(if equipped)(for
driver)(for front
passen-
ger)
******
******
*

175
2-2. Instrument cluster
2
When driving
CAUTION
■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, this could mean that these systems are not available to
help 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.

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2-4. Using other driving systems
■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 or plastic
objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canc eled if an obstruction is detected.
■Warning lights, messages and buzzer s for dynamic radar cruise control
Warning lights, messages and buzzers are us ed to indicate a system malfunction or
to inform the driver of the need for caution while driving. ( P. 5 0 4 )
Grille cover
Radar sensor

227
2-4. Using other driving systems
2
When driving
PCS (Pre-Collision System)
When the radar sensor detects possibility of a frontal collision, the pre-col-
lision systems such as the brakes and seat belts are automatically engaged
in an attempt to lessen damage.
■ Pre-collision seat belts
If the pre-collision sensor detects that a collision is unavoidable, the pre-
collision 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 2 )
However, the system will not operate in the event of skidding when the
VSC systems are disabled.
■ Pre-collision 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-collision braking
When there is a high possibility of a frontal collision, the system warns the
driver using a warning light, warnin g display and buzzer. If the system
determines that a collision is unavoidable, the brakes are automatically
applied to reduce the collision speed. The pre-collision braking function
can be turned on and off using the satellite switch.

: If equipped

228
2-4. Using other driving systems
Disabling the pre-collision brakingThe pre-collision braking function
can be turned on and off using the
satellite switch. (P. 371)
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 sec-
onds 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 collision is
imminent based on the position,
speed, and heading of the obsta-
cles. Grille cover
Radar sensor
■Obstacles not detected
The sensor cannot detect plastic obstacles such as pylons. There may also be occa-
sions when the sensor cannot detect pedestrians, animals, bicycles, motorcycles,
trees, or snowdrifts.