warning light LEXUS RX350 2015 User Guide

1982-2. Instrument cluster
* 1
: These lights turn on when the “E NGINE 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, for details.
* 2
: The light flashes to indicate that the system is operating.
* 3
: The light comes on when the system is turned off. The light flashes faster
than usual to indicate that the system is operating.
* 4
: In order to confirm operation, the BSM outside rear view mirror indica-
tors illuminate in the following situations:
• When the “ENGINE START STOP” switch is turned to IGNITION
ON mode while the BSM main switch is set to ON.
• When the BSM main switch is set to ON while the “ENGINE START
STOP” switch is in IGNITION ON mode.
If the system is functioning correctly, the BSM outside rear view mirror
indicators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not
turn off, there may be a malfunction with the system.
If this occurs, have the vehicle inspected by your Lexus dealer. (AWD models
only)
All-wheel drive lock indi-
cator (  P. 2 7 5 ) “ECT SNOW” indicator
(  P. 173, 180) (if equipped)
BSM indicator
(  P. 2 8 6 ) (if equipped)
Pre-collision system
warning light (  P. 2 7 8 )(if equipped)
BSM outside rear view
mirror indicators
(  P. 2 8 6 )* 1
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* 1, 3
* 4

1992-2. 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.■ Warning lights
Warning lights inform the driver of malfunctions in any of the vehi-
cle’s systems. (  P. 74 4 )
* 1
: These lights turn on when the “ENGINE START STOP” switch is
turned 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 malfunctio n 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, for details.
* 2
: The light flashes to indicate a malfunction. (U.S.A.) (Canada) (U.S.A.) (Canada)
(U.S.A.) (Canada)
(if equipped) (for driver) (for front
passenger)
* 1
* 1
* 1
* 1
* 1
* 1
* 1
* 1
* 1
* 1
* 1, 2
* 1
* 1

2042-2. Instrument cluster
■
Electronic features control can be turned on/off when
The “ENGINE START STOP” switch is in IGNITION ON mode.■
Conditions for ending electronic features control
In the following situations, the electronic features control will end: ●
The menu switch is pressed.●
The dynamic radar cruise control is operated (if equipped).●
Intuitive parking assist starts operating (if equipped).●
No action is performed for some time after the electronic features control
screen is displayed.●
A warning message appears after the electronic features control screen is dis-
played.■
Eco Driving Indicator
■
Outside temperature display
In the following situations, the correct outside temperature may not be displayed, or
the display may take longer than normal to change.
●
When stopped, or driving at low speeds (less than 16 mph [25 km/h])
●
When the outside temperature has changed suddenly (at the entrance/exit of a
garage, tunnel, etc.) Eco Driving Indicator Light
During Eco-friendly acceleration (Eco
driving), Eco Driving Indicator Light will
turn on.
Eco Driving Indicator Zone Display
Suggests Eco driving range with current
Eco driving ratio based on acceleration.
Zone of Eco driving
Eco driving ratio based on acceleration
If Zone of Eco driving is exceeded, the
right of Eco Driving Indicator Zone Dis-
play will blink and Eco Driving Indicator
Light will turn off.

2402-4. Using other driving systems
■
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 10 mph (16 km/h) below the
set vehicle speed.
At this time, the memorized set speed is not retained.●
Actual vehicle speed falls below approximately 25 mph (40 km/h).●
Enhanced VSC is activated. (vehicles with enhanced VSC)●
VSC is activated. (vehicles with VSC)■
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 plas-
tic 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. 7 5 9 )Grille cover
Radar sensor

2782-4. Using other driving systems
Pre-Collision System When the radar sensor detects the possib ility of a frontal collision, the pre-
collision system such as the brakes and seat belts are automatically
engaged to lessen impact as well as vehicle damage.
■ Pre-collision seat belts (front seat belts only) 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. 8 5 )
However, the system will not operate in the event of skidding when the
VSC system is 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. The system may not warn the driver using a warning light,
warning display and buzzer when the system detects and judges braking
operations.
■ 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. Pre-collision braking can be dis-
abled using the pre-collision braking off switch.
 : If equipped

2792-4. Using other driving systems
2
When driving Disabling pre-collision braking
Pre-collision braking disabled
Pre-collision braking enabled The pre-collision system warning
light turn on when pre-collision
braking is disabled.
Radar sensor
The radar sensor detects vehicles
or other obstacles on or near the
road ahead and determines
whether a collision is imminent
based on the posit ion, speed, and
heading of the obstacles.

2822-4. Using other driving systems
■
Obstacles not detected
The sensor cannot detect plastic obstacles such as traffic cones. There may also be
occasions when the sensor cannot detect pedestrians, animals, bicycles, motorcy-
cles, trees, or snowdrifts. ■
Situations in which the pre-collision system does not function properly
The system may not function effectively in situations such as the following: ●
On roads with sharp be nds or uneven surfaces●
If a vehicle suddenly moves in front of your vehicle, such as at an intersection●
If a vehicle suddenly cuts in front of your vehicle, such as when overtaking●
In inclement weather such as heav y rain, fog, snow or sand storms●
When your vehicle is skiddi ng with the VSC system off●
When an extreme change in vehicle height occurs●
When the axis of the radar is out of adjustment■
Automatic cancelation of the pre-collision system
When a malfunction occurs due to sensor contamination, etc. that results in the
sensors being unable to detect obstacles, the pre-collision system will be automati-
cally disabled. In this case, the system will not activate even if there is a collision pos-
sibility.■
When there is a malfunction in the system, or if the system is temporarily unus-
able
Warning lights and/or warning messages will turn on or flash. (  P. 744, 754)

2902-4. Using other driving systems
■
The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult
to see.■
When there is a malfunction in the system
If a system malfunction is detected due to any of the following reasons, warning
message is displayed: (  P. 7 5 4 )●
There is a malfunction with the sensors●
The sensors have become dirty●
The outside temperature is extremely high or low●
The sensor voltage has become abnormal■
Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A.
FCC ID: OAYSRR2A
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
Applicable law : Canada 310
This device complies with Industry Cana da licence-exempt RSS standard(s). Oper-
ation is subject to the following two conditions: (1) this device may not cause inter-
ference, and (2) this device must accept any interference, including interference
that may cause undesired operation of the device.
Frequency bands : 24.05 - 24.25GHz
Output power : less than 20 milliwatts

6864-3. Do-it-yourself maintenance
■ How to initialize the tire pressure warning system
Park the vehicle in a safe plac e and turn the “ENGINE START
STOP” switch off. While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified co ld tire inflation
pressure level. (  P. 815)Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
Press and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes in “ENG INE START STOP” switch to on,
and then turn the “ENGINE START STOP” switch off.STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

6874-3. Do-it-yourself maintenance
4
Maintenance and care Registering ID codes
The tire pressure warning valve and transmitter is equipped with a unique
ID code. When replacing a tire pressure warning valve and transmitter, it
is necessary to register the ID code. Ha ve the ID code registered by your
Lexus dealer. ■
When to replace your vehicle’s tires
Tires should be replaced if: ●
You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric, and bulges indicating internal damage.●
A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage.
If you are not sure, consult with your Lexus dealer.■
Replacing tires and wheels
If the ID code of the tire pressure warn ing valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light blin ks for 1 minute and stays on to indicate a
system malfunction.■
Tire life
Any tire over 6 years old must be checked by a qualified technician even if it has sel-
dom or never been used or damage is not obvious.■
If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.■
Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.